QUADRAMED CORP
S-4/A, 1998-03-06
COMPUTER PROGRAMMING SERVICES
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<PAGE>   1
 
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH   , 1998
    
   
                                                      REGISTRATION NO. 333-44767
    
================================================================================
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 1
    
 
   
                                       TO
    
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                             QUADRAMED CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                <C>                                <C>
             DELAWARE                             7371                            52-1992861
 (STATE OR OTHER JURISDICTION OF      (PRIMARY STANDARD INDUSTRIAL             (I.R.S. EMPLOYER
  INCORPORATION OR ORGANIZATION)      CLASSIFICATION CODE NUMBER)            IDENTIFICATION NO.)
</TABLE>
 
                    80 E. SIR FRANCIS DRAKE BLVD., SUITE 2A
                           LARKSPUR, CALIFORNIA 94939
                                 (415) 461-7725
    (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                  OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                             KEITH M. ROBERTS, ESQ.
                       VICE PRESIDENT AND GENERAL COUNSEL
                             QUADRAMED CORPORATION
                    80 E. SIR FRANCIS DRAKE BLVD., SUITE 2A
                           LARKSPUR, CALIFORNIA 94939
                                 (415) 461-7725
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
 
                                   COPIES TO:
 
<TABLE>
<S>                                                 <C>
               SCOTT D. LESTER, ESQ.                               J. CRAIG WALKER, ESQ.
          BROBECK, PHLEGER & HARRISON LLP                           BELL, BOYD & LLOYD
                    ONE MARKET                                  THREE FIRST NATIONAL PLAZA
                SPEAR STREET TOWER                          70 WEST MADISON STREET, SUITE 3300
          SAN FRANCISCO, CALIFORNIA 94105                         CHICAGO, ILLINOIS 60602
                  (415) 442-0900                                      (312) 372-1121
</TABLE>
 
                            ------------------------
 
      APPROXIMATE DATE OF COMMENCEMENT OF THE PROPOSED SALE TO THE PUBLIC:
AT THE EFFECTIVE TIME OF THE MERGER OF A WHOLLY OWNED SUBSIDIARY OF THE
REGISTRANT WITH AND INTO MEDICUS SYSTEMS CORPORATION, WHICH SHALL OCCUR AS SOON
AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT AND THE
SATISFACTION OF ALL CONDITIONS TO CLOSING OF SUCH MERGER.
 
    If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.  [ ]
 
    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering.  [ ]
 
    If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<S>                        <C>                      <C>                      <C>                      <C>
=============================================================================================================================
TITLE OF EACH CLASS OF                                 PROPOSED MAXIMUM         PROPOSED MAXIMUM
SECURITIES TO BE                AMOUNT TO BE            OFFERING PRICE              AGGREGATE                AMOUNT OF
REGISTERED                      REGISTERED(1)             PER UNIT(2)           OFFERING PRICE(2)        REGISTRATION FEE
- -----------------------------------------------------------------------------------------------------------------------------
Common Stock, par value
  $.01 per share.........         1,186,788                 $6.938                 $22,573,324                $6,659
=============================================================================================================================
</TABLE>
 
(1) The actual number of shares of QuadraMed Common Stock to be issued will vary
    depending on the number of shares of common stock issuable in the Merger to
    stockholders of Medicus Systems Corporation who elect to receive common
    stock in the Merger.
 
(2) Estimated solely for the purpose of computing the amount of the registration
    fee, based on the average of the high and low prices for the Common Stock of
    Medicus Systems Corporation as reported on the Nasdaq National Market on
    January 21, 1998 in accordance with Rule 457 under the Securities Act of
    1933.
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
================================================================================
<PAGE>   2
 
                          MEDICUS SYSTEMS CORPORATION
                         ONE ROTARY CENTER, SUITE 1111
                            EVANSTON, ILLINOIS 60201
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
   
                         TO BE HELD ON [APRIL 16], 1998
    
 
                            ------------------------
 
To the Stockholders of Medicus Systems Corporation:
 
   
     NOTICE IS HEREBY GIVEN that a Special Meeting of Stockholders (the "Special
Meeting") of Medicus Systems Corporation, a Delaware corporation ("Medicus"),
will be held on [April 16], 1998 at 10:00 a.m., local time, at the offices of
Brobeck, Phleger & Harrison LLP, Spear Street Tower, One Market, Conference Room
2852, San Francisco, California for the following purposes:
    
 
   
          1. To consider and vote upon a proposal to approve and adopt an
     Agreement and Plan of Reorganization, dated as of November 9, 1997, and
     amended as of February 26, 1998 (the "Merger Agreement"), by and among
     QuadraMed Corporation, a Delaware corporation ("QuadraMed"), and Medicus,
     pursuant to which a wholly owned subsidiary of QuadraMed ("Merger Sub")
     will be merged with and into Medicus, upon the terms and subject to the
     conditions of the Merger Agreement (the "Merger"), and each share of common
     stock, par value $.01 per share, of Medicus (the "Medicus Common Stock")
     issued and outstanding at the effective time of the Merger will be
     converted into the right to receive any of (i) a cash payment of $7.50 per
     share of Medicus Common Stock, (ii) 0.3125 shares of common stock, par
     value $.01 per share, of QuadraMed (the "QuadraMed Common Stock") for each
     share of Medicus Common Stock, subject to adjustment and certain
     limitations as provided in the Merger Agreement, or (iii) a combination of
     cash and QuadraMed Common Stock; and
    
 
          2. To vote upon such other business as may properly come before the
     Special Meeting or any adjournment thereof.
 
   
     Only stockholders of record at the close of business on [March 16], 1998
are entitled to receive notice of and vote at the Special Meeting or any
adjournments or postponements thereof. Holders of Medicus Common Stock are
entitled to one vote on each matter considered and voted on at the Special
Meeting for each share of Medicus Common Stock held of record at the close of
business on such date. Approval of the Merger Agreement requires the affirmative
vote of a majority of the outstanding shares of Medicus Common Stock. If the
Merger is consummated, holders of Medicus Common Stock who properly demand
appraisal of the fair value of their Medicus Common Stock prior to the
stockholder vote, do not vote in favor of the approval of the Merger Agreement,
and otherwise comply with the requirements of Section 262 of the Delaware
General Corporation Law (the "DGCL") (all as more fully described in the
accompanying Proxy Statement/ Prospectus) will be entitled to statutory
appraisal rights. A copy of Section 262 of the DGCL is attached as Annex C to
the accompanying Proxy Statement/Prospectus.
    
 
     DETAILED INFORMATION CONCERNING THE MERGER AGREEMENT AND THE MERGER IS
CONTAINED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS, AND THE ANNEXES
THERETO, WHICH ACCOMPANY THIS NOTICE. YOU ARE URGED TO AND SHOULD READ THE
ACCOMPANYING PROXY STATEMENT/PROSPECTUS AND RELATED MATERIALS, WHICH ARE
INCORPORATED HEREIN BY REFERENCE AND FORM A PART OF THIS NOTICE.
 
     THE BOARD OF DIRECTORS OF MEDICUS RECOMMENDS THAT YOU VOTE "FOR" APPROVAL
OF THE MERGER AGREEMENT.
 
     WHETHER OR NOT YOU EXPECT TO ATTEND THE SPECIAL MEETING IN PERSON, PLEASE
COMPLETE, SIGN AND PROMPTLY RETURN THE ENCLOSED PROXY CARD IN
<PAGE>   3
 
THE ENCLOSED POSTAGE-PAID ENVELOPE. A STOCKHOLDER WHO EXECUTES A PROXY MAY
REVOKE IT AT ANY TIME BEFORE IT IS EXERCISED BY GIVING WRITTEN NOTICE OF
REVOCATION TO MEDICUS, BY SUBSEQUENTLY FILING ANOTHER PROXY OR BY ATTENDING THE
SPECIAL MEETING AND VOTING IN PERSON.
 
                                          For the Board of Directors,
 
                                          PATRICK C. SOMMERS
                                          Chairman of the Board of Directors
 
   
Dated: [March 20], 1998
    
<PAGE>   4
 
                          MEDICUS SYSTEMS CORPORATION
                         ONE ROTARY CENTER, SUITE 1111
                            EVANSTON, ILLINOIS 60201
 
   
                                                                [MARCH 20], 1998
    
 
DEAR STOCKHOLDER:
 
   
     You are cordially invited to attend a Special Meeting of Stockholders
("Special Meeting") of Medicus Systems Corporation, a Delaware corporation
("Medicus"), to be held at 10:00 a.m., on [April 16], 1998 at the offices of
Brobeck, Phleger & Harrison LLP, Spear Street Tower, One Market, Conference Room
2852, San Francisco, California.
    
 
   
     At the Special Meeting, you will be asked to vote upon the approval and
adoption of the Agreement and Plan of Reorganization, dated as of November 9,
1997, and amended as of February 26, 1998 (the "Merger Agreement"), by and among
QuadraMed Corporation, a Delaware corporation ("QuadraMed") and Medicus.
Pursuant to the terms of the Merger Agreement, a wholly owned subsidiary of
QuadraMed will be merged with and into Medicus (the "Merger"). The consummation
of the Merger will result in, among other things, the cancellation,
extinguishment and conversion of the outstanding shares of the common stock, par
value $.01 per share, of Medicus (the "Medicus Common Stock") into the right to
receive any of (i) a cash payment of $7.50 per share of Medicus Common Stock,
(ii) 0.3125 shares of common stock, par value $.01 per share, of QuadraMed (the
"QuadraMed Common Stock") for each share of Medicus Common Stock, subject to
adjustment and certain limitations as provided in the Merger Agreement, or (iii)
a combination of cash and QuadraMed Common Stock (collectively, the "Merger
Consideration"). As a result of the Merger, each share of Medicus Common Stock
(other than shares owned by Medicus or QuadraMed) will be canceled and
extinguished and be converted automatically into the right to receive the Merger
Consideration, and Medicus will become a wholly owned subsidiary of QuadraMed.
The proposed Merger is described in the accompanying Proxy Statement/
Prospectus, the forepart of which includes a summary of the terms of the Merger
and certain other information relating to the proposed transaction.
    
 
   
     The approval and adoption of the Merger Agreement requires the affirmative
vote of holders of at least a majority of the outstanding shares of Medicus
Common Stock. As of February 27, 1998, there were 5,500,440 shares of Medicus
Common Stock issued and outstanding. QuadraMed, which acquired 3,111,105 shares
of Medicus Common Stock pursuant to stock purchase agreements dated November 9,
1997 with certain Medicus stockholders, is required by the Merger Agreement to
vote or cause to be voted its shares of Medicus Common Stock in favor of
approval and adoption of the Merger Agreement. QuadraMed will vote its shares
for the Merger. The Merger Agreement does not require the approval of the Merger
by a majority of the shares not owned by QuadraMed. QuadraMed, which held 56.6%
of the issued and outstanding shares of Medicus Common Stock as of February 27,
1998, owns a sufficient number of shares of Medicus Common Stock to approve the
Merger Agreement and the Merger.
    
 
     AFTER CAREFUL CONSIDERATION, THE MEDICUS BOARD OF DIRECTORS HAS UNANIMOUSLY
DETERMINED THAT THE TERMS OF THE MERGER AGREEMENT AND THE TRANSACTIONS
CONTEMPLATED THEREBY ARE FAIR TO, AND IN THE BEST INTERESTS OF, THE MEDICUS
STOCKHOLDERS. ACCORDINGLY, THE MEDICUS BOARD OF DIRECTORS HAS UNANIMOUSLY
APPROVED THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT THE STOCKHOLDERS
OF MEDICUS VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.
 
     Stockholders are urged to review carefully the information contained in the
Proxy Statement/Prospectus prior to deciding how to vote their shares at the
Special Meeting.
 
     YOUR VOTE IS IMPORTANT. WHETHER OR NOT YOU EXPECT TO ATTEND THE SPECIAL
MEETING IN PERSON, PLEASE COMPLETE, SIGN AND PROMPTLY RETURN THE ENCLOSED PROXY
CARD IN THE ENCLOSED POSTAGE-PREPAID ENVELOPE TO ASSURE REPRESENTATION OF YOUR
SHARES. YOU MAY REVOKE YOUR PROXY AT ANY TIME BEFORE IT HAS BEEN VOTED, AND
<PAGE>   5
 
IF YOU ATTEND THE SPECIAL MEETING YOU MAY VOTE IN PERSON, EVEN IF YOU PREVIOUSLY
RETURNED YOUR PROXY CARD. YOUR PROMPT COOPERATION WILL BE GREATLY APPRECIATED.
 
   
     WHETHER OR NOT YOU PLAN TO VOTE IN FAVOR OF THE APPROVAL OF THE MERGER
AGREEMENT, YOU SHOULD COMPLETE, DATE, SIGN AND RETURN THE ENCLOSED FORM OF
ELECTION TO THE EXCHANGE AGENT IN THE ENCLOSED PRE-ADDRESSED POSTAGE-PREPAID
ENVELOPE. IF YOU WISH TO RECEIVE CASH IN THE MERGER, YOU MUST RETURN A PROPERLY
COMPLETED AND EXECUTED FORM OF ELECTION TO THE EXCHANGE AGENT. A FORM OF
ELECTION WILL BE DEEMED PROPERLY COMPLETED AND EXECUTED ONLY IF ACCOMPANIED BY
ONE OR MORE CERTIFICATES REPRESENTING ALL SHARES OF MEDICUS COMMON STOCK COVERED
BY SUCH FORM OF ELECTION, TOGETHER WITH THE DULY EXECUTED TRANSMITTAL MATERIALS
INCLUDED IN THE FORM OF ELECTION. FAILURE TO RETURN A PROPERLY COMPLETED AND
EXECUTED FORM OF ELECTION TO THE EXCHANGE AGENT BY THE ELECTION DEADLINE (AS
DEFINED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS) WILL BE TREATED AS A
NON-ELECTION (AS DEFINED IN THE ACCOMPANYING PROXY STATEMENT/PROSPECTUS) AND
RESULT IN YOUR RECEIVING, SUBJECT TO CERTAIN ALLOCATION PROCEDURES, SHARES OF
QUADRAMED COMMON STOCK IN RESPECT OF YOUR SHARES OF MEDICUS COMMON STOCK. AN
ELECTION TO RECEIVE CASH OR QUADRAMED COMMON STOCK IN RESPECT OF ALL OR PART OF
YOUR SHARES OF COMPANY COMMON STOCK WILL NOT CONSTITUTE A VOTE IN FAVOR OF THE
APPROVAL OF THE MERGER AGREEMENT.
    
 
     The Board of Directors and management of Medicus appreciate your continued
support. If you need assistance in completing your proxy card or form of
election and letter of transmittal, or if you have any questions about the Proxy
Statement/Prospectus, please feel free to contact the undersigned at (847)
570-7500.
 
                                          Sincerely,
 
                                          Patrick C. Sommers
   
                                          Chairman of the Board of Directors
    
<PAGE>   6
 
NO PERSON HAS BEEN AUTHORIZED BY QUADRAMED OR MEDICUS TO GIVE ANY INFORMATION OR
TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROXY STATEMENT/PROSPECTUS IN
CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF SECURITIES MADE
HEREBY AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT BE
RELIED UPON AS HAVING BEEN AUTHORIZED BY QUADRAMED OR MEDICUS. THIS PROXY
STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF
AN OFFER TO BUY THE SECURITIES OFFERED BY THIS PROXY STATEMENT/PROSPECTUS OR A
SOLICITATION OF A PROXY IN ANY JURISDICTION WHERE, OR TO ANY PERSON TO WHOM, IT
WOULD BE UNLAWFUL TO MAKE SUCH AN OFFER OR SOLICITATION.
 
                          MEDICUS SYSTEMS CORPORATION
                                PROXY STATEMENT
                            ------------------------
 
                             QUADRAMED CORPORATION
                                   PROSPECTUS
                            ------------------------
 
   
    This Proxy Statement/Prospectus is being furnished to the holders of common
stock, par value $.01 per share (the "Medicus Common Stock"), of Medicus Systems
Corporation ("Medicus"), in connection with the solicitation of proxies by the
Board of Directors of Medicus (the "Medicus Board") for use at the special
meeting of stockholders of Medicus to be held on [April 16], 1998 at 10:00 a.m.,
local time, at the offices of Brobeck, Phleger & Harrison LLP, Spear Street
Tower, One Market, Conference Room 2852, San Francisco, California, including
any adjournments or postponements thereof (the "Special Meeting").
    
 
   
    This Proxy Statement/Prospectus relates to the proposed merger (the
"Merger") into Medicus of a wholly owned subsidiary ("Merger Sub") of QuadraMed
Corporation ("QuadraMed") pursuant to the Agreement and Plan of Reorganization,
dated as of November 9, 1997, and amended as of February 26, 1998 (the "Merger
Agreement"), by and among QuadraMed and Medicus. This Proxy Statement/Prospectus
also constitutes the prospectus of QuadraMed under the Securities Act of 1933,
as amended (the "Securities Act"), relating to the shares of QuadraMed Common
Stock issuable in connection with the Merger.
    
 
    Upon the consummation of the Merger, Medicus will become a wholly owned
subsidiary of QuadraMed and each share of Medicus Common Stock issued and
outstanding at the effective time of the Merger will be converted into the right
to receive any of (i) a cash payment of $7.50 per share of Medicus Common Stock
(the "Per Share Cash Amount"), (ii) 0.3125 shares (the "Exchange Ratio") of
common stock, par value $.01 per share (the "QuadraMed Common Stock") of
QuadraMed for each share of Medicus Common Stock, subject to adjustment and
certain limitations as provided in the Merger Agreement or (iii) a combination
of cash and QuadraMed Common Stock. If the QuadraMed Stock Value (as defined in
"THE MERGER -- General") is less than $20.40, then QuadraMed may, at its sole
discretion, elect to have all or any portion of the shares of Medicus Common
Stock converted into cash. QuadraMed is obligated to issue no more than
1,800,000 shares of QuadraMed Common Stock pursuant to the Merger and pursuant
to the exercise of warrants held by certain former stockholders of Medicus,
which shares are subject to pro rata allocation in the event stock elections by
Medicus stockholders and warrant exercises exceed the share limitation.
Consummation of the Merger is subject to various conditions, including the
affirmative vote of holders of a majority of the outstanding shares of Medicus
Common Stock entitled to vote at the Special Meeting. See "SUMMARY," "THE STOCK
PURCHASE AGREEMENTS AND WARRANTS," "THE MERGER AGREEMENT" and ANNEX A to this
Proxy Statement/ Prospectus.
 
   
    A Form of Election and Letter of Transmittal ("Form of Election") with which
Medicus stockholders can elect to receive the Per Share Cash Amount or QuadraMed
Common Stock (or a combination thereof) for their shares of Medicus Common Stock
is being mailed concurrently with this Proxy Statement/Prospectus. Each holder
of Medicus Common Stock must submit a Form of Election to State Street Bank and
Trust Company (the "Exchange Agent") by no later than 5:00 p.m. New York City
time on the last business day prior to the Effective Time (the "Election
Deadline"). Medicus stockholders who elect to receive cash in the Merger MUST
return a properly completed and executed Form of Election. Failure to return a
properly completed and executed Form of Election to the Exchange Agent by the
Election Deadline will be treated as a Non-Election and result in that
particular Medicus stockholder receiving shares of QuadraMed Common Stock in the
Merger (subject to the QuadraMed Cash Election as defined in "SUMMARY -- THE
MERGER -- Merger Consideration"). Medicus stockholders who wish to obtain
information regarding possible adjustments to the Exchange Ratio prior to making
their elections should call the Exchange Agent at (800) 426-5523 prior to [April
14], 1998 (two days prior to the date of the Special Meeting). The Form of
Election accompanying this Proxy Statement/Prospectus contains important
information concerning the timing and procedures for making an election. Please
read such materials carefully.
    
 
   
    THE MEDICUS BOARD HAS UNANIMOUSLY DETERMINED THAT THE TERMS OF THE MERGER
AGREEMENT AND THE TRANSACTIONS CONTEMPLATED THEREBY ARE FAIR TO, AND IN THE BEST
INTERESTS OF, THE MEDICUS STOCKHOLDERS. ACCORDINGLY, THE MEDICUS BOARD HAS
UNANIMOUSLY APPROVED THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT THE
STOCKHOLDERS OF MEDICUS VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.
See "SPECIAL FACTORS -- Recommendation of the Board of Directors of Medicus;
Reasons for the Merger" and "SPECIAL FACTORS -- Interests of Certain Persons in
the Merger."
    
 
    Proxies for the Special Meeting may be revoked, subject to the procedures
described herein, at any time up to and including the date of the Special
Meeting. See "THE SPECIAL MEETING -- Record Date; Voting Rights; Proxies."
 
   
    THE ABOVE MATTERS ARE DESCRIBED IN DETAIL IN THE PROXY STATEMENT/PROSPECTUS.
THE PROPOSED MERGER IS A COMPLEX TRANSACTION. STOCKHOLDERS ARE STRONGLY URGED TO
AND SHOULD READ AND CONSIDER CAREFULLY THIS PROXY STATEMENT/PROSPECTUS IN ITS
ENTIRETY, INCLUDING THE MATTERS DESCRIBED UNDER THE HEADINGS "RISK FACTORS" AND
"SPECIAL FACTORS" BEGINNING ON PAGES 20 AND 29, RESPECTIVELY.
    
 
   
    This Proxy Statement/Prospectus and the accompanying form of proxy are first
being mailed to stockholders of Medicus on or about [March 20], 1998.
    
 
    NEITHER THIS TRANSACTION NOR THE SECURITIES TO BE ISSUED IN THE MERGER HAVE
BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION OR ANY
STATE SECURITIES COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR
ANY STATE SECURITIES COMMISSION PASSED UPON THE FAIRNESS OR MERITS OF THIS
TRANSACTION OR UPON THE ACCURACY OR ADEQUACY OF THIS PROXY STATEMENT/PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
   
       THE DATE OF THIS PROXY STATEMENT/PROSPECTUS IS            , 1998.
    
<PAGE>   7
 
   
     NEITHER THE DELIVERY OF THIS PROXY STATEMENT/PROSPECTUS NOR ANY
DISTRIBUTION OF THE SECURITIES TO WHICH THIS PROXY STATEMENT/PROSPECTUS RELATES
SHALL, UNDER ANY CIRCUMSTANCES, CREATE AN IMPLICATION THAT THERE HAS BEEN NO
CHANGE IN THE INFORMATION CONTAINED HEREIN SINCE THE DATE HEREOF.
    
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
AVAILABLE INFORMATION.......................................    2
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE.............    2
INFORMATION CONCERNING FORWARD-LOOKING STATEMENTS...........    4
SUMMARY.....................................................    5
  Parties to the Merger.....................................    5
  The Merger................................................    5
  Special Factors...........................................    8
  The Special Meeting.......................................   11
  Recommendation of the Medicus Board of Directors..........   12
  Risk Factors..............................................   12
  The QuadraMed Common Stock................................   12
  Comparative Per Share Prices..............................   13
  Comparative Historical and Combined Per Share Data........   15
  QuadraMed Selected Financial Data.........................   16
  Medicus Selected Financial Data...........................   17
  Unaudited Pro Forma Combined Selected Financial Data for
     QuadraMed and Medicus..................................   18
  Comparative Rights of Stockholders........................   19
  Recent Developments.......................................   19
RISK FACTORS................................................   20
  The Effect of QuadraMed Stock Price Fluctuations on Stock
     Consideration to Be Received by the Holders of Medicus
     Common Stock Electing to Receive QuadraMed Common
     Stocks in the Merger...................................   20
  History of Operating Losses; Uncertain Profitability......   20
  Potential Variability in Quarterly Operating Results......   21
  Integration of Acquired Companies into QuadraMed..........   21
  Dependence on Acquisitions For Growth.....................   21
  Risks Associated with Acquisitions; Need to Manage
     Changing Operations....................................   22
  Need to Expand Sales and Technical Support Capabilities...   22
  Dependence on Key Personnel...............................   23
  Expanded Product and Service Offerings; Reliance on
     Cross-Selling Products and Services to Customers.......   23
  Risks Related to Hospital and Managed Care Markets........   23
  Highly Competitive Market.................................   24
  New Product Development and System Enhancement............   24
  Limited Proprietary Rights; Risk of Infringement..........   25
  Risk of Product Defects; Failure to Meet Performance
     Criteria...............................................   25
  Risk of Interruption of Data Processing...................   25
  Risks Related to Outsourcing Business.....................   25
  Government Regulation.....................................   26
  Uncertainty in the Health Care Industry...................   26
  Risk of Product-Related Claims............................   26
  Risks Associated with Certain Investments.................   27
  Potential Effect of Anti-Takeover Provisions..............   27
</TABLE>
    
 
                                        i
<PAGE>   8
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
  Shares Eligible for Future Sale; Possible Volatility of
     Stock Price; Low Trading Volume........................   27
  Risks Related to Medicus Litigation.......................   28
SPECIAL FACTORS.............................................   29
  Background of the Merger..................................   29
  Purpose and Structure of the Merger.......................   31
  Source and Amount of Funds................................   31
  Certain Effects of the Merger; Plans for the Company After
     the Merger.............................................   31
  Recommendation of the Board of Directors of Medicus;
     Reasons for the Merger.................................   32
  Opinion of Medicus' Financial Advisor.....................   34
  Interests of Certain Persons in the Merger................   39
  Approval of the Board of Directors of QuadraMed; Reasons
     for the Merger.........................................   40
  Analysis of QuadraMed's Financial Advisor.................   42
  Federal Income Tax Consequences...........................   43
  Accounting Treatment......................................   44
  Certain Legal Matters.....................................   44
  Federal Securities Law Consequences.......................   44
  Listing...................................................   45
  Appraisal Rights..........................................   45
THE STOCK PURCHASE AGREEMENTS AND WARRANTS..................   48
THE SPECIAL MEETING.........................................   50
  Purpose of the Special Meeting............................   50
  Record Date; Voting Rights; Proxies.......................   50
  Solicitation of Proxies...................................   50
  Quorum....................................................   50
  Required Vote.............................................   51
THE MERGER..................................................   52
  General...................................................   52
  Effective Time............................................   53
  Election Procedures; Procedures for Surrender and Exchange
     of Certificates........................................   53
  Treatment of Stock Options and Outstanding Warrants.......   54
THE MERGER AGREEMENT........................................   54
  The Merger................................................   54
  Terms of the Merger.......................................   54
  Fractional Shares.........................................   55
  Limitation on Shares Issuable.............................   55
  Election for Shares or Cash...............................   55
  Surrender and Payment.....................................   56
  Conditions to Consummation of the Merger..................   57
  Representations and Warranties............................   59
  Conduct of Business Pending the Merger....................   59
  Covenants.................................................   60
  Effect on Employee Benefit Plans..........................   61
  No Solicitation...........................................   61
  Indemnification...........................................   62
  Termination; Expenses; Amendment; Waiver..................   63
</TABLE>
    
 
                                       ii
<PAGE>   9
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
UNAUDITED CONDENSED COMBINED PRO FORMA FINANCIAL INFORMATION
  OF QUADRAMED AND MEDICUS..................................   64
CERTAIN INFORMATION CONCERNING QUADRAMED....................   70
CERTAIN INFORMATION CONCERNING MEDICUS......................   70
COMPARISON OF STOCKHOLDER RIGHTS............................   71
CERTAIN TRANSACTIONS........................................   74
DIVIDEND INFORMATION........................................   74
LEGAL MATTERS...............................................   74
EXPERTS.....................................................   74
</TABLE>
    
 
ANNEXES:
 
   
     Annex A -- Agreement and Plan of Reorganization, dated November 9, 1997,
                and Amendment No. 1 thereto dated February 26, 1998, by and
                between QuadraMed and Medicus.
    
 
     Annex B -- Opinion of Volpe Brown Whelan & Company, LLC.
 
     Annex C -- Section 262 of the Delaware General Corporation Law.
 
     Annex D -- Medicus' Annual Report on Form 10-K for the fiscal year ended
May 31, 1997.
 
     Annex E -- Medicus' Quarterly Report on Form 10-Q for the fiscal quarter
ended November 30, 1997.
 
                                       iii
<PAGE>   10
 
   
                             AVAILABLE INFORMATION
    
 
   
     QuadraMed and Medicus are each subject to the informational requirements of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith file reports, proxy statements and other information with
the Securities and Exchange Commission (the "Commission"). QuadraMed and Medicus
have filed with the Commission a Rule 13e-3 Transaction Statement on Schedule
13E-3 with respect to the transactions described in this Proxy
Statement/Prospectus (the "Schedule 13E-3"). As permitted by the rules and
regulations of the Commission, this Proxy Statement/Prospectus omits certain
exhibits contained in the Schedule 13E-3. Copies of the Schedule 13E-3 and the
exhibits thereto, as well as such reports, proxy statements and other
information, can be inspected and copied at the public reference facilities
maintained by the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street,
N.W., Washington, D.C. 20549 and at the Commission's regional offices at
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661
and 7 World Trade Center, New York, New York 10048. Copies of these materials
can also be obtained from the Commission at prescribed rates by writing to the
Public Reference Section of the Commission, 450 Fifth Street, N.W., Washington,
D.C. 20549. The Commission maintains a Web site that contains reports, proxy and
information statements and other materials that are filed through the
Commission's Electronic Data Gathering, Analysis and Retrieval System ("EDGAR").
This Web site can be accessed at http://www.sec.gov. In addition, material filed
by QuadraMed and material filed by Medicus can be inspected at the offices of
the National Association of Securities Dealers, Inc., Market Listing Section,
1735 K Street, N.W., Washington, D.C. 20006.
    
 
     This Proxy Statement/Prospectus does not contain all the information set
forth in the Registration Statement on Form S-4 and exhibits relating thereto,
including any amendments (the "Registration Statement"), of which this Proxy
Statement/Prospectus is a part, and which QuadraMed has filed with the
Commission under the Securities Act of 1933, as amended (the "Securities Act").
Reference is made to such Registration Statement for further information with
respect to QuadraMed and Medicus and the securities of QuadraMed offered hereby.
Statements contained herein concerning the provisions of documents are
necessarily summaries of such documents, and each statement is qualified in its
entirety by reference to the copy of the applicable document filed with the
Commission or attached as an annex hereto.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed by QuadraMed with the Commission under
Sections 13(d), 14 and 15(d) of the Exchange Act are hereby incorporated by
reference in this Proxy Statement/Prospectus:
 
      1. Proxy Statement on Schedule 14A filed January 16, 1998;
 
      2. Proxy Statement on Schedule 14A filed April 28, 1997;
 
      3. Annual Report on Form 10-KSB, and amendment thereto, for the fiscal
         year ended December 31, 1996;
 
      4. Quarterly Report on Form 10-Q for the quarter ended March 31, 1997;
 
      5. Quarterly Report on Form 10-Q, and amendment thereto, for the quarter
         ended June 30, 1997;
 
   
      6. Quarterly Report on Form 10-Q, and amendment thereto, for the quarter
         ended September 30, 1997;
    
 
      7. Current Report on Form 8-K filed January 9, 1997;
 
   
      8. Current Report on Form 8-K filed May 9, 1997 and amendments thereto
         filed July 8, 1997 and March      , 1998, respectively;
    
 
   
      9. Current Report on Form 8-K filed October 14, 1997, and amendment
         thereto filed March      , 1998;
    
 
                                        2
<PAGE>   11
 
     10. Current Report on Form 8-K filed November 21, 1997 and amendment
        thereto filed December 24, 1997;
 
   
     11. Current Report on Form 8-K filed January 13, 1998, and amendment
        thereto filed March      , 1998; and
    
 
     12. The description of QuadraMed Common Stock set forth in QuadraMed's
        Registration Statement on Form S-3 (Registration No. 333-36189) filed
        pursuant to Section 12 of the Exchange Act and any amendment or report
        filed for the purpose of updating such description.
 
     The following documents filed by Medicus with the Commission under Sections
13(d) and 15(d) of the Exchange Act are hereby incorporated by reference in this
Proxy Statement/Prospectus:
 
     1. Annual Report on Form 10-K, and amendment thereto, for the fiscal year
        ended May 31, 1997 (the "Medicus Annual Report");
 
     2. Quarterly Report on Form 10-Q for the fiscal quarter ended August 31,
        1997;
 
     3. Quarterly Report on Form 10-Q for the fiscal quarter ended November 30,
        1997 (the "Medicus Second Quarter 10-Q"); and
 
     4. Current Report on Form 8-K dated November 9, 1997.
 
     In accordance with the rules and regulations of the Commission, the Medicus
Annual Report and the Medicus Second Quarter 10-Q are being delivered together
with this Proxy Statement/Prospectus and are attached hereto as Annex D and
Annex E, respectively.
 
     All reports and definitive proxy or information statements filed by
QuadraMed pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act
subsequent to the date of this Proxy Statement/ Prospectus and prior to the date
of the Special Meeting shall be deemed to be incorporated by reference into this
Proxy Statement/Prospectus from the date of filing of such documents. Any
statement contained in a document incorporated or deemed to be incorporated
herein shall be deemed to be modified or superseded for purposes of this Proxy
Statement/Prospectus to the extent that a statement contained herein or in any
other subsequently filed document which also is or is deemed to be incorporated
by reference herein modifies or supersedes such statement. Any such statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Proxy Statement/Prospectus.
 
   
     THIS PROXY STATEMENT/PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE WHICH
ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. THERE WILL BE PROVIDED WITHOUT
CHARGE TO EACH PERSON, INCLUDING ANY BENEFICIAL OWNER OF MEDICUS COMMON STOCK,
TO WHOM A PROXY STATEMENT/PROSPECTUS IS DELIVERED, UPON ORAL OR WRITTEN REQUEST
OF ANY SUCH PERSON, A COPY OF ANY OR ALL DOCUMENTS INCORPORATED BY REFERENCE
HEREIN (EXCLUDING EXHIBITS UNLESS SUCH EXHIBITS ARE SPECIFICALLY INCORPORATED BY
REFERENCE HEREIN). WITH RESPECT TO QUADRAMED'S DOCUMENTS, REQUESTS SHOULD BE
DIRECTED TO KEITH M. ROBERTS, QUADRAMED CORPORATION, 80 E. SIR FRANCIS DRAKE
BLVD., SUITE 2A, LARKSPUR, CALIFORNIA, 94939 (TEL. 415/461-7725). WITH RESPECT
TO MEDICUS' DOCUMENTS, REQUESTS SHOULD BE DIRECTED TO PATRICK SOMMERS, MEDICUS
SYSTEMS CORPORATION, ONE ROTARY CENTER, SUITE 1111, EVANSTON, ILLINOIS 60201
(TEL. 847/570-7500). IN ORDER TO ENSURE TIMELY DELIVERY OF THE DOCUMENTS IN
ADVANCE OF THE SPECIAL MEETING TO WHICH THIS PROXY STATEMENT/PROSPECTUS RELATES,
ANY SUCH REQUEST SHOULD BE MADE BY [APRIL 2], 1998.
    
 
     All information contained in this Proxy Statement/Prospectus relating to
QuadraMed has been supplied by QuadraMed, and all information relating to
Medicus has been supplied by Medicus.
 
                                        3
<PAGE>   12
 
               INFORMATION CONCERNING FORWARD-LOOKING STATEMENTS
 
   
     Certain of the statements contained in this Proxy Statement/Prospectus and
in documents incorporated herein by reference may be considered forward-looking
within the meaning of Section 27A of the Securities Act and Section 21E of the
Exchange Act, including, without limitation, (i) the statements in
"SUMMARY -- Comparative Historical and Combined Per Share Data," "-- Unaudited
Pro Forma Combined Selected Financial Data for QuadraMed and Medicus" and
"UNAUDITED CONDENSED COMBINED PRO FORMA FINANCIAL INFORMATION OF QUADRAMED AND
MEDICUS," (ii) the statements in "SPECIAL FACTORS -- Certain Effects of the
Merger; Plans for the Company after the Merger," (iii) the statements in
"SPECIAL FACTORS -- Recommendation of the Board of Directors of Medicus; Reasons
for the Merger," "-- Opinion of Medicus' Financial Advisor" and "-- Analysis of
QuadraMed's Financial Advisor" concerning, among other things, prospective
considerations that the respective boards of directors took into account in
arriving at their respective recommendations in favor of the Merger and (iv)
variations of the foregoing statements whenever they appear in this Proxy
Statement/Prospectus and the documents incorporated herein by reference.
Forward-looking statements are made based upon either QuadraMed's or Medicus'
current expectations and beliefs concerning future developments and their
potential effects upon QuadraMed and Medicus, respectively. There can be no
assurance that future developments affecting either QuadraMed or Medicus will be
those anticipated by their respective managements. Actual results may differ
materially from those included in the forward-looking statements. These
forward-looking statements involve risks and uncertainties including those
discussed in "RISK FACTORS."
    
 
     While Medicus and QuadraMed each reassess material trends and uncertainties
affecting each company's financial condition and results of operations, in
connection with its preparation of management's discussion and analysis of
financial condition and results of operations contained in each company's
quarterly and annual reports, neither Medicus nor QuadraMed intends to review or
revise any particular forward-looking statement made in this Proxy
Statement/Prospectus or incorporated herein by reference.
 
   
     The information referred to above should be considered by Medicus
stockholders when reviewing any forward-looking statements contained in this
Proxy Statement/Prospectus, in any documents incorporated herein by reference,
in any of QuadraMed's or Medicus' public filings or press releases or in any
oral statements made by either Medicus or QuadraMed or any of their respective
officers or other persons acting on their behalf.
    
 
                                        4
<PAGE>   13
 
                                    SUMMARY
 
     The following is a summary of certain information contained elsewhere in
this Proxy Statement/ Prospectus. This summary is not intended to be a complete
description of the matters covered in this Proxy Statement/Prospectus and is
subject to and qualified in its entirety by reference to the more detailed
information contained elsewhere in this Proxy Statement/Prospectus, including
the Annexes hereto, and in the documents incorporated by reference in this Proxy
Statement/Prospectus. The Merger Agreement is set forth in Annex A to this Proxy
Statement/Prospectus and reference is made thereto for a complete description of
the terms of the Merger. Medicus stockholders are urged to read carefully the
entire Proxy Statement/Prospectus, including the Annexes. As used in this Proxy
Statement/Prospectus, the terms "QuadraMed" and "Medicus" refer to such
corporations, respectively, and where the context requires, such corporations
and their respective subsidiaries.
 
     This Proxy Statement/Prospectus contains forward-looking statements about
future results which are subject to risks and uncertainties. See "Information
Concerning Forward-Looking Statements." Medicus stockholders should consider
carefully the information set forth herein under the headings "Risk Factors" and
"Special Factors" in addition to the other information presented herein.
 
                             PARTIES TO THE MERGER
 
   
QUADRAMED
    
 
     QuadraMed Corporation, a Delaware corporation ("QuadraMed"), develops,
markets and sells software products and services designed to enable health care
providers and payors to increase operational efficiency, improve cash flow,
measure the cost of care and effectively administer managed care contracts.
QuadraMed's suite of products is an integrated offering of electronic data
interchange ("EDI"), financial management and decision support solutions for
both providers and payors. In addition, QuadraMed provides business office
outsourcing and cash flow management services.
 
     QuadraMed's executive offices are located at 80 East Sir Francis Drake
Blvd., Suite 2A, Larkspur, California 94939 and its telephone number is (415)
461-7725. See "CERTAIN INFORMATION CONCERNING QUADRAMED."
 
MEDICUS
 
     Medicus Systems Corporation, a Delaware corporation ("Medicus"), develops,
markets, and supports a family of specialized integrated software products
utilized by healthcare financial administrators, physicians and nursing
executives, as well as health information and other administrative departments
to capture, structure and analyze clinical, operational and financial
information. Medicus' specialized software applications and services allow these
professionals to measure, monitor and manage organizational performance and
optimize outcomes. Medicus also provides product-related maintenance and support
services. Clients include hospitals, academic medical centers, managed care
organizations, community care networks, integrated health systems, primary care
and multi-specialty physician groups, government agencies, and other
organizations.
 
     Medicus' executive offices are located at One Rotary Center, Suite 1111,
Evanston, Illinois, 60201 and its telephone number is (847) 570-7500. See
"CERTAIN INFORMATION CONCERNING MEDICUS."
 
                                   THE MERGER
 
     QuadraMed and Medicus have entered into an Agreement and Plan of
Reorganization, dated as of November 9, 1997 (the "Merger Agreement"), a copy of
which is attached hereto as Annex A, whereby a wholly owned subsidiary of
QuadraMed ("Merger Sub") will be merged with and into Medicus (the "Merger"). As
a result of the Merger, Medicus will become a wholly owned subsidiary of
QuadraMed. See "THE MERGER."
 
                                        5
<PAGE>   14
 
MERGER CONSIDERATION
 
   
     At the Effective Time, each share of Medicus Common Stock issued and
outstanding (other than any shares of Medicus Common Stock owned by Medicus as
treasury stock or owned by QuadraMed) will be canceled and extinguished and be
converted automatically into the right to receive (i) $7.50 in cash, without
interest (the "Per Share Cash Amount"); or (ii) 0.3125 shares of QuadraMed
Common Stock (the "Exchange Ratio"), subject to adjustment and limitations as
described below; or (iii) a combination of shares of QuadraMed Common Stock and
cash. As of February 27, 1998, there were 5,500,440 shares of Medicus Common
Stock issued and outstanding, of which 3,111,105 shares are owned by QuadraMed.
The Exchange Ratio is subject to the following adjustments: (1) if the QuadraMed
Stock Value (as defined below) exceeds $27.60, then the Exchange Ratio shall be
the quotient obtained by dividing (A) $8.625 by (B) the QuadraMed Stock Value,
and (2) if the QuadraMed Stock Value is less than $24.00, then the Exchange
Ratio shall be the quotient obtained by dividing (A) $7.50 by (B) the QuadraMed
Stock Value. For purposes hereof, the "QuadraMed Stock Value" shall be equal to
the average of the closing prices of QuadraMed Common Stock during the fifteen
(15) days prior to the second day prior to the date of the Special Meeting.
    
 
   
     In addition, if the QuadraMed Stock Value is less than $20.40, then
QuadraMed may, at its sole discretion, elect to have all or any portion of the
shares of Medicus Common Stock converted into the Per Share Cash Amount (the
"QuadraMed Cash Election"). In the event of a QuadraMed Cash Election in which
less than all of the outstanding shares of Medicus Common Stock will be
converted into cash, the shares of Medicus Common Stock to be converted into
cash as a result of the QuadraMed Cash Election will be selected pro rata
according to the number of shares with respect to which a Stock Election (as
defined in "THE MERGER -- General") has been made. The amounts paid in the
Merger in exchange for shares of Medicus Common Stock shall be referred to
herein as the "Merger Consideration." See "THE MERGER AGREEMENT -- Terms of the
Merger."
    
 
   
     The following table illustrates the Exchange Ratio in the Merger at various
QuadraMed Stock Values:
    
 
   
<TABLE>
<CAPTION>
QUADRAMED STOCK VALUE   EXCHANGE RATIO
- ---------------------   --------------
<S>                     <C>
       $15.00               .5000
       $20.00               .3750
       $20.40               .3676
       $24.00               .3125
       $27.60               .3125
       $30.00               .2875
       $35.00               .2464
</TABLE>
    
 
   
     As a further example, if the Special Meeting had been held on March 4,
1998, the QuadraMed Stock Value (calculated based on the 15 trading days
commencing February 6, 1998 and ending February 27, 1998) would have been
$28.027, resulting in an Exchange Ratio of .3077.
    
 
   
     Medicus stockholders who elect to receive QuadraMed Common Stock in the
Merger may receive the equivalent of $8.625 per share of Medicus Common Stock in
the Merger if the QuadraMed Stock Value exceeds $27.60. While this amount
represents a premium over the $7.50 per share in cash received by stockholders
electing to receive cash in the Merger, stockholders electing to receive
QuadraMed Common Stock should be aware that QuadraMed's market price may vary
significantly as further described in "RISK FACTORS."
    
 
   
PRIOR PURCHASE OF MEDICUS COMMON STOCK BY QUADRAMED
    
 
   
     On November 9, 1997, QuadraMed and certain stockholders of Medicus,
including certain members of the Medicus Board of Directors (the "Selling
Stockholders") entered into Stock Purchase Agreements pursuant to which
QuadraMed acquired 3,111,105 shares of Medicus Common Stock, or 56.6% of the
issued and outstanding shares of Medicus Common Stock as of February 27, 1998.
In consideration for the sale of the Medicus Common Stock to QuadraMed,
QuadraMed agreed to pay to the Selling Stockholders $7.50 per share, in cash,
without interest, together with a warrant (the "Warrant") entitling the Selling
Stockholders to
    
                                        6
<PAGE>   15
 
acquire 0.3125 shares of QuadraMed Common Stock for each share of Medicus Common
Stock sold at a price of $24.00 per share (the closing price of the QuadraMed
Common Stock on the last trading day prior to the execution of the Stock
Purchase Agreements), subject to adjustments and certain limitations. The
aggregate purchase price paid by QuadraMed to the Selling Stockholders was
approximately $23.3 million in cash plus Warrants to purchase an aggregate of
972,220 shares of QuadraMed Common Stock. See "THE STOCK PURCHASE AGREEMENTS AND
WARRANTS."
 
LIMITATION ON SHARES ISSUABLE
 
     In no event shall the aggregate number of shares of QuadraMed Common Stock
which QuadraMed is obligated to issue (i) upon the exercise of Warrants and (ii)
in exchange for outstanding shares of Medicus Common Stock exceed a total of
1,800,000 shares. In the event that the aggregate number of shares of QuadraMed
Common Stock that holders of Warrants and holders of Medicus Common Stock have
elected to receive as described in clauses (i) and (ii) in the immediately
preceding sentence exceeds 1,800,000 shares, QuadraMed shall only be required to
issue 1,800,000 shares of QuadraMed Common Stock and such holders shall be
entitled to receive shares of QuadraMed Common Stock equal to each holder's pro
rata portion of the total amount of shares issued by QuadraMed as described in
clauses (i) and (ii), based on the total number of shares each holder elected to
receive and in the case of clause (ii), such holders shall receive the remaining
Merger Consideration to which they are entitled in cash. See "THE MERGER
AGREEMENT -- Limitation on Shares Issuable."
 
TREATMENT OF STOCK OPTIONS AND OUTSTANDING WARRANTS
 
     At the Effective Time, the obligations under the Medicus Stock Option Plans
(as defined in "THE MERGER AGREEMENT -- Terms of the Merger") and the Stock
Subscription Warrant dated March 1,
   
1996 issued by Medicus to TriHealth, Inc. (the "TriHealth Warrant") will be
assumed by QuadraMed and shall continue to have, and be subject to, the same
terms and conditions set forth therein, except that (i) each of the assumed
options and warrants will be exercisable for that number of whole shares of
QuadraMed Common Stock equal to the product of the number of shares of Medicus
Common Stock that were issuable upon exercise of such option or warrant
immediately prior to the Effective Time multiplied by 0.3565, rounded down to
the nearest whole number of shares of QuadraMed Common Stock, (ii) an aggregate
of 683,000 options granted under the Medicus 1994 Directors' Stock Option Plan,
the Medicus 1996 C.E.O. Stock Option Plan, the Medicus 1996 C.E.O. Replacement
Stock Option Plan and the Medicus 1996 C.E.O. Special Stock Option Plan (the
"Director Options") shall be fully vested and shall remain exercisable for a
period of three years after (a) termination of employment, in the case of
options held by Patrick C. Sommers, formerly the President and Chief Executive
Officer of Medicus, and (b) the Effective Time in the case of other Director
Options and (iii) the per share exercise price for the shares of QuadraMed
Common Stock issuable upon exercise of such assumed option or warrant will be
equal to the quotient determined by dividing the exercise price per share of
Medicus Common Stock at which such option or warrant was exercisable immediately
prior to the Effective Time by 0.3565, rounded up to the nearest whole cent. See
"THE MERGER -- Treatment of Stock Options and Outstanding Warrants" and "THE
MERGER AGREEMENT -- Terms of the Merger."
    
 
   
     At the Effective Time, certain warrants issued by Medicus to Richard C.
Jelinek, a director of Medicus, and a trust for his benefit (the "Jelinek
Warrants") shall be purchased and cancelled by QuadraMed in exchange for
QuadraMed Common Stock with an aggregate value of $1.12 million. See "SPECIAL
FACTORS -- Interests of Certain Persons in the Merger."
    
 
ELECTION FOR SHARES OR CASH
 
     Each record holder of Medicus Common Stock may elect to receive cash,
shares of QuadraMed Common Stock or a combination of both by submitting a Form
of Election to the Exchange Agent no later than the Election Deadline. Record
holders who indicate no preference on the Form of Election or who do not submit
a Form of Election prior to the Election Deadline will automatically have their
shares of Medicus Common Stock converted into the right to receive shares of
QuadraMed Common Stock at the Effective
                                        7
<PAGE>   16
 
Time. See "THE MERGER -- Election Procedures; Procedures for Exchange of
Certificates" and "THE MERGER AGREEMENT -- Election for Shares or Cash."
 
SURRENDER OF STOCK CERTIFICATES
 
   
     Concurrent with the mailing of this Proxy Statement/Prospectus, State
Street Bank and Trust Company, as the Exchange Agent, will mail to each holder
of record of Medicus Common Stock a Form of Election and Letter of Transmittal
("Form of Election"). The Form of Election will contain instructions with
respect to the surrender of certificates formerly representing Medicus Common
Stock to be exchanged for QuadraMed Common Stock and/or cash. See "THE
MERGER -- Election Procedures; Procedures for Exchange of Certificates."
    
 
CONDITIONS TO THE MERGER; TERMINATION
 
   
     Consummation of the Merger is subject to various conditions, including but
not limited to: (i) obtaining requisite stockholder approval; (ii) the continued
effectiveness of the Registration Statement; (iii) the absence of any
preliminary or permanent injunction or other order by any federal or state court
which prevents the consummation of the Merger; (iv) obtaining requisite
governmental approvals; (v) filing an application for listing of additional
shares issued in the Merger by QuadraMed with the Nasdaq National Market, (vi)
the accuracy of each party's representations; and (vii) each party's performance
of its covenants. See "THE MERGER AGREEMENT -- Conditions to Consummation of the
Merger."
    
 
     At any time prior to the Effective Time, whether before or after approval
of the matters presented in connection with the Merger by the stockholders of
Medicus, the Merger Agreement may be terminated: (i) by mutual consent of
QuadraMed and Medicus; (ii) by either QuadraMed or Medicus, if, without fault of
the terminating party, the closing of the Merger shall not have occurred on or
before May 1, 1998 (or such later date as may be agreed upon in writing by the
parties); (iii) by QuadraMed, if (a) Medicus shall breach any of its
representations, warranties or obligations and such breach shall not have been
cured within ten business days of receipt by Medicus of written notice of such
breach, or (b) the Board of Directors of Medicus shall have withdrawn or
modified its recommendation of the Merger Agreement or the Merger in a manner
adverse to QuadraMed or shall have resolved to do any of the foregoing; (iv) by
Medicus, if QuadraMed shall breach any of its representations, warranties or
obligations and such breach shall not have been cured within ten days following
receipt by QuadraMed of written notice of such breach; or (v) by either
QuadraMed or Medicus if (a) any permanent injunction or other order of a court
or other competent authority preventing the consummation of the Merger shall
have become final and nonappealable or (b) if any required approval of the
stockholders of Medicus shall not have been obtained by reason of the failure to
obtain the required vote upon a vote held at a duly held meeting of stockholders
or at any adjournment thereof.
 
                                SPECIAL FACTORS
 
     Holders of Medicus Common Stock, in voting on the Merger, should consider
special factors associated with the Merger. See "SPECIAL FACTORS."
 
BACKGROUND OF THE MERGER
 
     For a description of events leading to the adoption and approval of the
Merger Agreement by the Boards of Directors of QuadraMed and Medicus, see
"SPECIAL FACTORS -- Background of the Merger."
 
PURPOSE AND STRUCTURE OF THE MERGER
 
     The purpose of the Merger is for QuadraMed to acquire the entire equity
interest in Medicus. Because holders of Medicus Common Stock have the right to
elect to receive QuadraMed Common Stock, they will have the opportunity to
maintain an indirect equity interest in Medicus.
 
                                        8
<PAGE>   17
 
SOURCE AND AMOUNT OF FUNDS
 
   
     If all Medicus stockholders elect to receive cash in the Merger and
assuming no current Medicus option holders exercise options to purchase Medicus
Common Stock, approximately $17.9 million will be required to pay such
consideration. In addition, QuadraMed will pay fees and expenses of
approximately $2.2 million in connection with the Merger. The cash required in
connection with the Merger will be provided by current cash resources of
QuadraMed.
    
 
   
     In connection with its purchase of 3,111,105 shares of Medicus Common
Stock, QuadraMed paid cash to the Selling Stockholders of approximately $23.3
million, which amount was funded by QuadraMed's existing cash resources.
    
 
CERTAIN EFFECTS OF THE MERGER; PLANS FOR THE COMPANY AFTER THE MERGER
 
     Following the Merger, QuadraMed will own 100% of the outstanding capital
stock of the Surviving Corporation (as defined in "THE MERGER AGREEMENT -- The
Merger"). As such, QuadraMed will be the direct beneficiary of any future
earnings and growth of the Surviving Corporation, and will have the ability to
benefit from any divestitures, strategic acquisitions or other corporate
opportunities that may be pursued by the Surviving Corporation in the future.
Upon the consummation of the Merger, each share of Medicus Common Stock issued
and outstanding immediately prior to the Effective Time (other than any shares
of Medicus Common Stock owned by Medicus or QuadraMed) will be cancelled and
extinguished and be converted into the right to receive the Merger Consideration
and the stockholders of Medicus will cease to have any direct ownership interest
in Medicus.
 
     As a result of the Merger, (i) the Surviving Corporation will be privately
held; (ii) there will be no market for the Medicus Common Stock; (iii) the
Medicus Common Stock will cease to be listed on the Nasdaq National Market; and
(iv) the registration of the Medicus Common Stock under the Exchange Act will be
terminated and Medicus will no longer be required to file periodic reports with
the Commission.
 
     See "SPECIAL FACTORS -- Certain Effects of the Merger; Plans for the
Company After the Merger."
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     In considering the recommendation of the Board of Directors of Medicus with
respect to the Merger, holders of Medicus Common Stock should be aware that
certain members of Medicus' management and members of the Medicus Board of
Directors have certain interests in the Merger, in addition to those of Medicus'
stockholders generally. The Board of Directors of Medicus was aware of these
interests when it considered and approved the Merger and the Merger Agreement.
 
   
     Patrick C. Sommers, the former President and Chief Executive Officer of
Medicus, received a bonus payment of $750,000 from Medicus in connection with
QuadraMed's acquisition of Medicus. In addition, Mr. Sommers, whose employment
as President and Chief Executive Officer of Medicus terminated on February 28,
1998, will receive a lump-sum severance payment in the amount of $250,000.
Additionally, Mr. Sommers will continue to receive medical benefits, at
QuadraMed's expense, for a period of one year following his termination. See
"SPECIAL FACTORS -- Interests of Certain Persons in the Merger."
    
 
   
     Pursuant to the Merger Agreement, the obligations under the Medicus Stock
Option Plans and the TriHealth Warrant will be assumed by QuadraMed and shall
continue to have, and be subject to, the same terms and conditions set forth
therein, except that (i) each of the assumed options and warrants will be
exercisable for that number of whole shares of QuadraMed Common Stock equal to
the product of the number of shares of Medicus Common Stock that were issuable
upon exercise of such option or warrant immediately prior to the Effective Time
multiplied by 0.3565, rounded down to the nearest whole number of shares of
QuadraMed Common Stock, (ii) Director Options shall be fully vested and shall
remain exercisable for a period of three years after (a) termination of
employment, in the case of options held by Mr. Sommers and (b) the Effective
Time in the case of other Director Options and (iii) the per share exercise
price for the shares of QuadraMed Common Stock issuable upon exercise of such
assumed option or warrant will be equal
    
                                        9
<PAGE>   18
 
to the quotient determined by dividing the exercise price per share of Medicus
Common Stock at which such option or warrant was exercisable immediately prior
to the Effective Time by 0.3565, rounded up to the nearest whole cent.
 
     At the Effective Time of the Merger, QuadraMed will purchase and cancel the
Jelinek Warrants in exchange for shares of QuadraMed Common Stock with an
aggregate value of $1.12 million. The number of shares of QuadraMed Common Stock
issuable in exchange for the Jelinek Warrants will be determined by dividing
$1.12 million by the QuadraMed Stock Value as defined in the Merger Agreement.
If at the Effective Time of the Merger, the QuadraMed Stock Value exceeds
$27.60, then the number of shares of QuadraMed Common Stock issuable upon
cancellation of the Jelinek Warrants shall be equal to $1.12 million divided by
$27.60. If at the Effective Time of the Merger, the QuadraMed Stock Value is
less than $20.40, then the number of shares of QuadraMed Common Stock issuable
upon cancellation of the Jelinek Warrants shall be equal to $1.12 million
divided by $20.40.
 
     Concurrent with the execution of the Merger Agreement, certain stockholders
of Medicus (including Richard C. Jelinek, William G. Brown, Jon E.M. Jacoby,
Gail L. Warden and Dorsey R. Gardner, all of whom are members of the Medicus
Board of Directors) sold their shares of Medicus Common Stock to QuadraMed
pursuant to stock purchase agreements, each dated as of November 9, 1997. The
consideration paid by QuadraMed for such shares was $7.50 per share in cash plus
a warrant to purchase 0.3125 shares of QuadraMed Common Stock for each share of
Medicus Common Stock sold. The warrants are exercisable only at the Effective
Time of the Merger at a price of $24.00 per share (the closing price of the
QuadraMed Common Stock on the last trading day prior to the execution of the
stock purchase agreements), subject to certain adjustments and limitations. See
"SPECIAL FACTORS -- Interests of Certain Persons in the Merger" and "THE STOCK
PURCHASE AGREEMENTS AND WARRANTS."
 
FEDERAL INCOME TAX CONSEQUENCES
 
     The receipt of the Merger Consideration for shares of Medicus Common Stock
will be a taxable transaction for U.S. federal income tax purposes and may be a
taxable transaction for foreign, state and local income tax purposes as well. A
Medicus stockholder will generally recognize gain or loss equal to the
difference between (i) the amount of cash, and, in the case of Medicus
stockholders receiving QuadraMed Common Stock, the fair market value of
QuadraMed Common Stock that the stockholder receives as a result of the Merger
and (ii) the stockholder's adjusted tax basis in the shares of Medicus Common
Stock that the stockholder exchanges in the Merger. Medicus will not recognize
any gain or loss as a result of the Merger for U.S. federal income tax purposes.
See "SPECIAL FACTORS -- Federal Income Tax Consequences."
 
   
     MEDICUS STOCKHOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS WITH RESPECT
TO THE FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES OF THE MERGER.
    
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for as a purchase for financial reporting
purposes in accordance with generally accepted accounting principles ("GAAP").
This method will require the allocation of the purchase price to the various
assets acquired and liabilities assumed based on the fair market values of those
assets and liabilities.
 
   
     QuadraMed received a valuation of certain intangible assets which will be
acquired in the Merger which indicated that $38,500,000 of the intangible assets
to be acquired consist of in-process research and development. In the opinion of
management, the acquired in-process research and development had not yet reached
technological feasibility and had no alternative future use. Accordingly,
QuadraMed expects to record a non-recurring charge of $38,500,000 in its fourth
quarter ended December 31, 1997. The remaining intangible assets are expected to
be amortized over a five- to seven-year period.
    
 
                                       10
<PAGE>   19
 
CERTAIN LEGAL MATTERS
 
     No federal or state regulatory requirements or approvals (other than those
which arose in connection with the registration of QuadraMed Common Stock to be
issued in the Merger and certain notice filings after the Effective Time) must
be complied with or obtained in connection with the Merger.
 
FEDERAL SECURITIES LAW CONSEQUENCES
 
     All QuadraMed Common Stock issued in connection with the Merger will be
freely transferable, except that any QuadraMed Common Stock received by persons
who are deemed to be "affiliates" (as such term is defined under the Securities
Act) of Medicus or QuadraMed prior to the Merger may be sold by them only in
transactions permitted by the resale provisions of Rule 145 under the Securities
Act with respect to affiliates of Medicus, or Rule 144 under the Securities Act
with respect to persons who are or become affiliates of QuadraMed, or as
otherwise permitted under the Securities Act. See "SPECIAL FACTORS -- Federal
Securities Law Consequences."
 
LISTING
 
     It is a condition to the obligations of QuadraMed and Medicus to consummate
the Merger that application shall have been made to the Nasdaq National Market
to list the shares of QuadraMed Common Stock to be issued in connection with the
Merger.
 
APPRAISAL RIGHTS
 
     Record holders of Medicus Common Stock are entitled to appraisal rights
under Section 262 ("Section 262") of the Delaware General Corporation Law (the
"DGCL"), which is reprinted in its entirety as Annex C to this Proxy
Statement/Prospectus. A person having a beneficial interest in shares of Medicus
Common Stock held of record in the name of another person, such as a broker or
nominee, must act promptly to cause the record holder to follow the steps
summarized below properly and in a timely manner to perfect the appraisal rights
provided under Section 262.
 
     Under Section 262, where a merger is to be submitted for approval at a
meeting of stockholders, as in the case of the Special Meeting, not less than 20
days prior to the meeting, a constituent corporation must notify each of the
holders of its stock (who was a stockholder on the record date for such meeting)
for which appraisal rights are available that such appraisal rights are
available and include in each such notice a copy of Section 262.
 
   
     THIS PROXY STATEMENT/PROSPECTUS SHALL CONSTITUTE NOTICE TO THE RECORD
HOLDERS OF MEDICUS COMMON STOCK THAT APPRAISAL RIGHTS ARE AVAILABLE. ANY SUCH
STOCKHOLDER WHO WISHES TO EXERCISE SUCH APPRAISAL RIGHTS SHOULD REVIEW THE
FOLLOWING DISCUSSION AND ANNEX C CAREFULLY, BECAUSE FAILURE TO TIMELY AND
STRICTLY COMPLY WITH THE PROCEDURES SPECIFIED MAY RESULT IN THE LOSS OF
APPRAISAL RIGHTS UNDER THE DGCL. SEE "SPECIAL FACTORS -- APPRAISAL RIGHTS" AND
ANNEX C.
    
 
                              THE SPECIAL MEETING
 
TIME, PLACE AND DATE
 
   
     A special meeting of the stockholders of Medicus will be held at the
offices of Brobeck, Phleger & Harrison LLP, Spear Street Tower, One Market,
Conference Room 2852 San Francisco, California, on [April 16], 1998, at 10:00
a.m., local time (including any and all adjournments or postponements thereof,
the "Special Meeting").
    
 
                                       11
<PAGE>   20
 
PURPOSE OF THE MEETING
 
     At the Special Meeting, holders of Medicus Common Stock will consider and
vote upon a proposal to approve and adopt the Merger Agreement and approve the
Merger. As a result of the Merger, Medicus will become a wholly owned subsidiary
of QuadraMed. Stockholders of Medicus will also consider and vote upon any other
matter that may properly come before the Special Meeting. See "THE SPECIAL
MEETING."
 
VOTE REQUIRED; RECORD DATE
 
   
     Approval of the Merger Agreement and the consummation of the Merger will
require the affirmative vote of the holders of a majority of the outstanding
shares of Medicus Common Stock entitled to vote at the Special Meeting. Holders
of Medicus Common Stock are entitled to one vote per share. Only holders of
Medicus Common Stock at the close of business on [March 16], 1998 (the "Record
Date") will be entitled to notice of and to vote at the Special Meeting. On
February 27, 1998, there were 5,500,440 shares of Medicus Common Stock
outstanding and entitled to vote. See "THE SPECIAL MEETING."
    
 
   
     QuadraMed, which acquired 3,111,105 shares of Medicus Common Stock on
November 9, 1997 pursuant to stock purchase agreements with certain stockholders
of Medicus, will vote its shares of Medicus Common Stock in favor of approval
and adoption of the Merger Agreement and the transactions contemplated thereby.
As of February 27, 1998, QuadraMed owned 56.6% of the issued and outstanding
shares of Medicus Common Stock. As a result, QuadraMed's affirmative vote for
approval and adoption of the Merger Agreement is sufficient to approve the
Merger. The Merger Agreement does not require that the Merger be approved by a
majority of the unaffiliated Medicus stockholders. See "THE STOCK PURCHASE
AGREEMENTS AND WARRANTS," "THE SPECIAL MEETING" and "THE MERGER."
    
 
                RECOMMENDATION OF THE MEDICUS BOARD OF DIRECTORS
 
   
     THE MEDICUS BOARD OF DIRECTORS (I) UNANIMOUSLY BELIEVES THE TERMS AND
CONDITIONS OF THE MERGER AGREEMENT AND THE MERGER ARE FAIR TO, AND IN THE BEST
INTERESTS OF, THE MEDICUS STOCKHOLDERS, (II) HAS UNANIMOUSLY APPROVED THE TERMS
OF THE MERGER AGREEMENT AND THE MERGER AND (III) UNANIMOUSLY RECOMMENDS THAT THE
MEDICUS STOCKHOLDERS VOTE FOR THE APPROVAL OF THE MERGER AGREEMENT AND
CONSUMMATION OF THE MERGER. THE PRIMARY FACTORS CONSIDERED AND RELIED UPON BY
THE MEDICUS BOARD OF DIRECTORS IN REACHING ITS RECOMMENDATION ARE DESCRIBED IN
"SPECIAL FACTORS -- BACKGROUND OF THE MERGER" AND "-- RECOMMENDATION OF THE
BOARD OF DIRECTORS OF MEDICUS; REASONS FOR THE MERGER."
    
 
                                  RISK FACTORS
 
     Holders of Medicus Common Stock should consider risks associated with the
Merger and with holding QuadraMed Common Stock before voting to approve and
adopt the Merger Agreement and the Merger. A copy of the Merger Agreement is
attached as Annex A to this Proxy Statement/Prospectus. See "RISK FACTORS."
 
                           THE QUADRAMED COMMON STOCK
 
     At December 31, 1997, the authorized capital stock of QuadraMed consisted
of: (i) 20,000,000 shares of common stock, par value $.01 per share, of which
11,916,097 shares were issued and outstanding and 2,425,129 shares were issuable
with respect to options, warrants, convertible debt and similar rights to
acquire shares of QuadraMed Common Stock; and (ii) 5,000,000 shares of preferred
stock, par value $.01 per share, of which no shares were issued and outstanding.
It is anticipated that at the Effective Time, assuming issuance of 1,800,000
shares of QuadraMed Common Stock pursuant to the Merger Agreement and the
exercise of the Warrants, approximately 1,800,000 shares of QuadraMed Common
Stock will be issued to the holders of
 
                                       12
<PAGE>   21
 
Medicus Common Stock and the Warrants, and an additional 570,827 shares of
QuadraMed Common Stock will be issuable upon the exercise of options which were
previously granted under the Medicus Stock Option Plans and the TriHealth
Warrant. In addition, up to 54,902 shares of QuadraMed Common Stock will be
issued upon the purchase and cancellation of the Jelinek Warrants. The 2,425,729
shares of QuadraMed Common Stock issuable in connection with these transactions
would represent approximately 14.5% of QuadraMed's outstanding Common Stock (on
a fully-diluted basis) following the Merger based on QuadraMed's outstanding
Common Stock and other rights to aquire QuadraMed Common Stock outstanding as of
December 31, 1997. QuadraMed Common Stock trades on the Nasdaq National Market
under the symbol "QMDC."
 
                          COMPARATIVE PER SHARE PRICES
 
   
QUADRAMED MARKET PRICE DATA
    
 
     QuadraMed's Common Stock has been quoted on the Nasdaq National Market
since October 10, 1996 under the symbol "QMDC." The following table sets forth
the range of high and low closing sales prices reported on the Nasdaq National
Market for QuadraMed Common Stock for the periods indicated.
 
<TABLE>
<CAPTION>
                                                             HIGH        LOW
                                                             ----        ---
<S>                                                          <C>         <C>
Year Ended December 31, 1996
  Fourth Quarter (October 10, 1996 through December 31,
     1996).................................................  $13 1/2     $ 8 9/16
Year Ended December 31, 1997
  First Quarter............................................   12 1/4       9 5/8
  Second Quarter...........................................   10 5/8       6 3/4
  Third Quarter............................................   20           6 3/4
  Fourth Quarter...........................................   27 1/2      17
Year Ending December 31, 1998
  First Quarter (through             ).....................
</TABLE>
 
     As of January 7, 1998, there were approximately 81 holders of record of
QuadraMed's Common Stock. QuadraMed believes that the number of beneficial
holders of QuadraMed Common Stock substantially exceeds this number.
 
MEDICUS MARKET PRICE DATA
 
     Medicus' Common Stock has been quoted on the Nasdaq National Market since
March 1, 1996 under the symbol "MECS." The following table sets forth the range
of high and low closing sales prices reported on the Nasdaq National Market for
Medicus Common Stock for the periods indicated:
 
<TABLE>
<CAPTION>
                                                             HIGH        LOW
                                                             ----        ---
<S>                                                          <C>         <C>
Year Ended May 31, 1996
  Fourth Quarter...........................................   $8         $5 1/4
Year Ended May 31, 1997
  First Quarter............................................    6 1/2      4 3/4
  Second Quarter...........................................    6 5/16     4 1/2
  Third Quarter............................................    7 1/2      4 3/8
  Fourth Quarter...........................................    6 1/2      5 1/4
Year Ending May 31, 1998
  First Quarter............................................    5 7/8      4
  Second Quarter...........................................    7 3/8      4 9/16
  Third Quarter (through             ).....................
</TABLE>
 
   
     There were 200 holders of record of Medicus' Common Stock as of March 2,
1998.
    
 
                                       13
<PAGE>   22
 
RECENT CLOSING PRICES
 
     The following table sets forth the closing prices per share of QuadraMed
Common Stock and Medicus Common Stock on the Nasdaq National Market on November
7, 1997, the last trading day before announcement of the proposed Merger, and on
[               ], the latest practicable trading day before the printing of
this Proxy Statement/Prospectus, and the equivalent per share prices for Medicus
Common Stock based on the QuadraMed Common Stock prices:
 
<TABLE>
<CAPTION>
                                                                          MEDICUS
                                   QUADRAMED STOCK    MEDICUS STOCK    EQUIVALENT(1)
                                   ---------------    -------------    -------------
<S>                                <C>                <C>              <C>
November 7, 1997.................      $24.00             $5.50            $7.50
[          , 1998]...............      $ [  ]             $ [ ]            $ [ ]
</TABLE>
 
- ---------------
(1) Represents the equivalent of one share of Medicus Common Stock calculated by
    multiplying the price per share of QuadraMed Common Stock by the Exchange
    Ratio.
 
                                       14
<PAGE>   23
 
               COMPARATIVE HISTORICAL AND COMBINED PER SHARE DATA
 
   
     The following historical earnings (loss) per share and stockholders' equity
per share of QuadraMed and Medicus, and pro forma loss per share and
stockholders' equity per share give effect to the Merger as though it occurred
at the beginning of each period for earnings (loss) per share purposes and as of
the indicated balance sheet date for purposes of stockholders' equity per share
information. The equivalent pro forma loss per share and stockholders' equity
per share is based upon an assumed share exchange ratio of 0.3125 provided by
the Merger Agreement as discussed in the footnotes below. The comparative
historical and combined per share data are not necessarily indicative of the
results that actually would have occurred if the Merger had been completed at
the beginning of the periods presented or which may be expected in the future.
The combined financial information should be read in conjunction with the
historical consolidated financial statements of QuadraMed and Medicus
incorporated by reference herein and in conjunction with the Unaudited Pro Forma
Combined Condensed Financial Statements of QuadraMed and Medicus included
elsewhere herein. See "UNAUDITED CONDENSED COMBINED PRO FORMA FINANCIAL
INFORMATION OF QUADRAMED AND MEDICUS."
    
 
     Medicus' fiscal year ends May 31. The historical Consolidated Financial
Statements of Medicus have been recast and reclassified to conform with
QuadraMed's historical financial statement presentation.
 
   
     Estimated direct costs of the Merger are approximately $2.2 million. Other
costs of consolidation have not been determined and are not included in pro
forma combined loss per share for the periods indicated. Such amounts are not
expected to be significant to the combined operations of the companies.
    
 
   
<TABLE>
<CAPTION>
                                                                      NINE MONTHS
                                                      YEAR ENDED         ENDED
                                                     DECEMBER 31,    SEPTEMBER 30,
                                                         1996            1997
                                                     ------------    -------------
<S>                                                  <C>             <C>
Historical earnings (loss) per share:
  Quadramed........................................     $ 0.03          $ 0.37
  Medicus..........................................     $(0.57)         $(0.87)
Pro forma combined loss per QuadraMed share........     $(1.47)         $(0.56)
Pro forma combined loss per equivalent
  Medicus share(1).................................     $(0.46)         $(0.18)
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                     DECEMBER 31,    SEPTEMBER 30,
                                                         1996            1997
                                                     ------------    -------------
<S>                                                  <C>             <C>
Historical stockholders' equity per share:
  QuadraMed(2).....................................     $4.14            $4.84
  Medicus(2).......................................     $2.90            $1.39
Pro forma combined stockholders' equity per
  QuadraMed share(3)...............................     $6.82            $5.68
Pro forma combined stockholders' equity per Medicus
  share(1).........................................     $2.13            $1.78
</TABLE>
    
 
- ---------------
   
(1) The Medicus equivalent pro forma combined loss per share and equivalent pro
    forma stockholders' equity per share represents the pro forma combined loss
    per share and pro forma combined stockholders' equity per share,
    respectively, multiplied by an assumed share exchange ratio of 0.3125 shares
    of QuadraMed Common Stock for each share of Medicus Common Stock. For
    purposes of the above calculations, it is also assumed that all shares of
    Medicus Common Stock will be exchanged for shares of QuadraMed Common Stock
    in the Merger.
    
 
(2) The historical stockholders' equity per share is computed by dividing
    stockholders' equity by the number of shares of common stock outstanding at
    the end of the period.
 
(3) The pro forma combined stockholders' equity per share is computed by
    dividing the pro forma stockholders' equity by the pro forma number of
    shares of common stock outstanding at the end of each period.
 
                                       15
<PAGE>   24
 
                       QUADRAMED SELECTED FINANCIAL DATA
 
   
     The following table sets forth the selected financial data of QuadraMed for
each fiscal year in the five-year period ended December 31, 1996 and for the
nine months ended September 30, 1997. Such data for the annual periods have been
derived from, and should be read in conjunction with, QuadraMed's audited
consolidated financial statements contained in QuadraMed's Annual Report on Form
10-KSB, and amendment thereto, for the fiscal year ended December 31, 1996 and
incorporated herein by reference. Such data for the nine months ended September
30, 1997 have been derived from, and should be read in conjunction with,
QuadraMed's unaudited consolidated financial statements contained in QuadraMed's
Form 10-Q, and amendments thereto, for the period then ended and incorporated
herein by reference. See "INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE" and
"AVAILABLE INFORMATION." Interim unaudited data reflect, in the opinion of
management, all adjustments (consisting of normal recurring adjustments)
necessary to present fairly the information set forth therein.
    
 
     Results of operations for the nine months ended September 30, 1997 are not
necessarily indicative of results of operations for the entire year or
predictive of future periods. QuadraMed's development and expansion activities,
including acquisitions, during the periods shown below materially affect the
comparability of this data from one period to another.
 
<TABLE>
<CAPTION>
                                                                                          NINE MONTHS
                                                                                             ENDED
                                                   YEARS ENDED DECEMBER 31,              SEPTEMBER 30,
                                          ------------------------------------------   -----------------
                                          1992   1993     1994      1995      1996      1996      1997
                                          ----   -----   -------   -------   -------   -------   -------
                                                      (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                       <C>    <C>     <C>       <C>       <C>       <C>       <C>
CONSOLIDATED STATEMENT OF OPERATIONS
  DATA:
  Revenues..............................  $175   $ 517   $ 6,102   $ 7,603   $19,088   $11,798   $22,149
  Income (loss) from operations.........   (77)   (793)   (4,780)   (9,337)      497       (47)    2,551
  Net income (loss).....................   (80)   (804)   (4,865)   (9,434)      153      (520)    2,780
  Pro forma net income (loss) per
    share(1)............................    --      --        --     (2.13)       --        --        --
                                          ----   -----   -------   -------   -------   -------   -------
  Net income (loss) per share(1)........  $ --   $  --   $    --   $    --   $  0.03   $ (0.11)  $  0.37
                                          ====   =====   =======   =======   =======   =======   =======
</TABLE>
 
<TABLE>
<CAPTION>
                                                           AS OF DECEMBER 31,                    AS OF
                                              --------------------------------------------   SEPTEMBER 30,
                                              1992    1993      1994      1995      1996         1997
                                              ----   -------   -------   -------   -------   -------------
                                                                     (IN THOUSANDS)
<S>                                           <C>    <C>       <C>       <C>       <C>       <C>
CONSOLIDATED BALANCE SHEET DATA:
  Working capital (deficit).................  $ 46   $(1,866)  $(1,494)  $(6,372)  $18,357      $13,640
  Total assets..............................   130     2,123     2,801     9,533    29,569       39,105
  Stockholders' equity (deficit)............    72      (667)   (1,457)   (5,817)   24,893       32,200
</TABLE>
 
- ---------------
   
(1) See Note 2 of Notes to QuadraMed's Consolidated Financial Statements
    incorporated herein by reference for an explanation of the determination of
    the number of shares used in computing net income per share. In February
    1997, the Financial Accounting Standards board issued Statement of Financial
    Accounting Standards No. 128, "Earnings Per Share" ("SFAS No. 128") which
    requires disclosure of basic earnings per share and diluted earnings per
    share and is effective for periods ending subsequent to December 15, 1997.
    
 
                                       16
<PAGE>   25
 
                        MEDICUS SELECTED FINANCIAL DATA
 
   
     The following table sets forth the selected financial data of Medicus for
each fiscal year in the five-year period ended May 31, 1997 and for the six
months ended November 30, 1997. Such data for the annual fiscal periods have
been derived from, and should be read in conjunction with, Medicus' audited
consolidated financial statements contained in Medicus' Annual Report on Form
10-K, and amendment thereto, for the period then ended which is attached hereto
as Annex D and incorporated herein by reference. Such data for the six months
ended November 30, 1997 have been derived from, and should be read in
conjunction with, Medicus' unaudited financial statements contained in Medicus'
Form 10-Q for the period then ended which is attached hereto as Annex E and
incorporated herein by reference. See "INCORPORATION OF CERTAIN DOCUMENTS BY
REFERENCE" and "AVAILABLE INFORMATION." Interim unaudited data reflect, in the
opinion of management, all adjustments (consisting of normal recurring
adjustments) necessary to present fairly the information set forth therein.
    
 
     Results of operations for the six months ended November 30, 1997 are not
necessarily indicative of results of operations for the entire year or
predictive of future periods.
 
<TABLE>
<CAPTION>
                                                                                        SIX MONTHS
                                                                                           ENDED
                                                  YEAR ENDED MAY 31,                   NOVEMBER 30,
                                    -----------------------------------------------   ---------------
                                     1993      1994      1995      1996      1997      1996     1997
                                    -------   -------   -------   -------   -------   ------   ------
                                                  (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                 <C>       <C>       <C>       <C>       <C>       <C>      <C>
STATEMENT OF OPERATIONS:
  Revenues........................  $18,140   $21,337   $22,507   $19,794   $18,270   $9,360   $8,388
  Operating income (loss).........    3,226     4,379     3,540    (7,445)   (7,356)     391   (2,263)
  Net income (loss)...............    2,117     3,225     3,025    (3,726)   (4,220)     504   (1,392)
Net income (loss) per common
  share(1)........................       --        --        --        --   $ (0.70)  $ 0.08   $(0.25)
Pro forma earnings (loss) per
  common share(1).................  $  0.39   $  0.51   $  0.45   $ (0.57)       --       --       --
</TABLE>
 
<TABLE>
<CAPTION>
                                                         AS OF MAY 31,                       AS OF
                                        -----------------------------------------------   NOVEMBER 30,
                                         1993      1994      1995      1996      1997         1997
                                        -------   -------   -------   -------   -------   ------------
<S>                                     <C>       <C>       <C>       <C>       <C>       <C>
BALANCE SHEET:
  Working capital.....................  $ 9,411   $21,984   $17,150   $12,627   $ 2,090     $   859
          Total assets................   17,805    35,510    30,882    27,689    22,849      24,140
  Stockholders' equity................   11,461    25,575    22,304    18,201     9,502       8,357
</TABLE>
 
- ---------------
 
(1) Loss per common share and pro forma earnings (loss) per common share are
    based upon the actual capital structure of Medicus since March 1, 1996, and
    the capital structure of Medicus' predecessor prior to March 1, 1996.
 
                                       17
<PAGE>   26
 
              UNAUDITED PRO FORMA COMBINED SELECTED FINANCIAL DATA
                           FOR QUADRAMED AND MEDICUS
 
   
     The following unaudited pro forma combined selected financial data for
QuadraMed and Medicus give effect to the Merger as though it occurred at the
earliest period presented for statement of operations purposes and as of
September 30, 1997 for balance sheet data purposes. The unaudited pro forma
combined selected financial data is not necessarily indicative of the results
that actually would have occurred if the Merger had been completed on the dates
indicated or which may be expected in the future. Such unaudited pro forma
combined selected financial data should be read in conjunction with the audited
historical consolidated financial statements and notes thereto of QuadraMed and
Medicus incorporated by reference herein and in conjunction with UNAUDITED
CONDENSED COMBINED PRO FORMA FINANCIAL INFORMATION OF QUADRAMED AND MEDICUS."
    
 
   
<TABLE>
<CAPTION>
                                                                     TWELVE MONTHS
                                        TWELVE MONTHS ENDED              ENDED
                                         DECEMBER 31, 1996         NOVEMBER 30, 1996
                                    ----------------------------   -----------------
                                    HISTORICAL        PRIOR           HISTORICAL        PRO FORMA     PRO FORMA
                                    QUADRAMED    ACQUISITIONS(2)        MEDICUS        ADJUSTMENTS   COMBINED(1)
                                    ----------   ---------------   -----------------   -----------   -----------
<S>                                 <C>          <C>               <C>                 <C>           <C>
Revenues..........................   $19,088         $12,431            $18,435                       $ 49,954
Operating expenses................    18,591          14,373             25,586          $ 2,530        66,080
Income (loss) from operations.....       497          (1,942)            (7,151)          (2,530)      (11,126)
                                     -------         -------            -------          -------      --------
Net income (loss).................   $   153         $(2,218)           $(3,750)         $(2,530)     $ (8,345)
                                     =======         =======            =======          =======      ========
Net income (loss) per share.......   $  0.03                                                          $  (1.47)
                                     =======                                                          ========
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                     NINE MONTHS
                                         NINE MONTHS ENDED              ENDED
                                         SEPTEMBER 30, 1997        AUGUST 31, 1997
                                    ----------------------------   ---------------
                                    HISTORICAL        PRIOR          HISTORICAL       PRO FORMA     PRO FORMA
                                    QUADRAMED    ACQUISITIONS(2)       MEDICUS       ADJUSTMENTS   COMBINED(1)
                                    ----------   ---------------   ---------------   -----------   -----------
<S>                                 <C>          <C>               <C>               <C>           <C>
Revenues..........................   $22,149         $ 4,328           $13,530                       $40,007
Operating expenses................    19,598           5,484            22,206         $ 1,900        49,188
Income (loss) from operations.....     2,551          (1,156)           (8,676)         (1,900)       (9,181)
                                     -------         -------           -------         -------       -------
Net income (loss).................   $ 2,780         $(1,204)          $(5,230)        $(1,900)      $(5,554)
                                     =======         =======           =======         =======       =======
Net income (loss) per share.......   $  0.37                                                         $ (0.56)
                                     =======                                                         =======
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                   SEPTEMBER 30,   AUGUST 31,
                                                       1997           1997
                                                   -------------   ----------
                                                    HISTORICAL     HISTORICAL    PRO FORMA     PRO FORMA
                                                     QUADRAMED      MEDICUS     ADJUSTMENTS   COMBINED(1)
                                                   -------------   ----------   -----------   ------------
<S>                                                <C>             <C>          <C>           <C>
Current assets...................................     $19,069       $11,619       $11,752       $42,440
Total assets.....................................     $39,105       $20,000       $22,500       $81,655
                                                      =======       =======       =======       =======
</TABLE>
    
 
- ---------------
   
(1) Excludes the effect of non-recurring charge of approximately $38.5 million
    related to the write-off of in-process technology resulting from the
    acquisition of Medicus. The unaudited condensed combined pro forma
    statements of operations do not include the effect of the one-time charge
    for purchased in-process technology. This charge represents a material
    non-recurring charge under the rules for the preparation of pro forma
    financial statements and is not required to be included. This charge will be
    included as an operating expense in QuadraMed's consolidated statements of
    operations for the year ended December 31, 1997.
    
 
   
(2) Includes pre-acquisition results of operations of Healthcare Revenue
    Management, Inc. ("HRM") for the eight months ended August 31, 1997, and the
    Synergy Companies ("Synergy") for the three months ended March 31, 1997, and
    related pro forma adjustments.
    
 
                                       18
<PAGE>   27
 
                       COMPARATIVE RIGHTS OF STOCKHOLDERS
 
     The rights of Medicus stockholders currently are governed by Delaware law,
Medicus' Amended and Restated Certificate of Incorporation, and Medicus' Bylaws.
Upon consummation of the Merger, stockholders of Medicus may become stockholders
of QuadraMed, which is also a Delaware corporation, and their rights as
stockholders of QuadraMed would be governed by Delaware law, QuadraMed's Second
Amended and Restated Certificate of Incorporation ("Certificate of
Incorporation") and QuadraMed's Bylaws. For a comparison of the rights of
Medicus stockholders and the rights of QuadraMed stockholders, see "COMPARISON
OF STOCKHOLDER RIGHTS."
 
                              RECENT DEVELOPMENTS
 
   
     On December 29, 1997, QuadraMed acquired Rothenberg Health Systems Inc.
("Rothenberg"), a provider of health care information systems, and Healthcare
Research Affiliates, Inc. ("HRA"), a consulting company that specializes in
HEDIS reporting, from Resource Health Partners, L.P. ("RHP") in two related
merger transactions (referred to herein as the "RHP Mergers"). In the RHP
Mergers, QuadraMed issued an aggregate of 1,588,701 shares of QuadraMed Common
Stock, valued at approximately $37.9 million. The transaction will be treated as
a pooling of interests for accounting purposes. Accordingly, QuadraMed's
financial statements for the years ended December 31, 1996 and 1995 will be
restated to include the historical results of Rothenberg, HRA and RHP. The
financial statements of these entities and pro forma financial statements giving
effect to these acquisitions have not been filed with the Securities and
Exchange Commission and are not included in this proxy statement as their
historical operations are not significant to the consolidated operations of
QuadraMed. QuadraMed has agreed to register such shares for resale under the
Securities Act. See "RISK FACTORS -- Shares Eligible for Future Sale; Possible
Volatility of Stock Price; Low Trading Volume."
    
 
   
     Rothenberg is a provider of health care information systems designed to
enable health care providers to efficiently manage the risks associated with
managed care contracts. Rothenberg has a client base of more than 300 IPAs,
medical groups, hospitals, MSOs, PHOs and integrated delivery systems that
employ or contract with an estimated 40,000 providers of care, who, in turn,
serve over an estimated 8,000,000 enrollees in 35 states. Rothenberg's primary
product is EZ-CAP(R), a software product that is designed to validate enrollee
eligibility, adjudicate claims based on specific benefit structures and ensure
the accurate processing and payment of claims. See "RISK FACTORS -- Integration
of Acquired Companies into QuadraMed" and "-- Risks Associated with
Acquisitions; Need to Manage Changing Operations."
    
 
                                       19
<PAGE>   28
 
                                  RISK FACTORS
 
   
     Holders of Medicus Common Stock should consider carefully all of the
information contained in this Proxy Statement/Prospectus, including the
following risk factors, in evaluating the Merger:
    
 
   
THE EFFECT OF QUADRAMED STOCK PRICE FLUCTUATIONS ON STOCK CONSIDERATION TO BE
RECEIVED BY THE HOLDERS OF MEDICUS COMMON STOCK ELECTING TO RECEIVE QUADRAMED
COMMON STOCK IN THE MERGER
    
 
   
     The price of the QuadraMed Common Stock at the Effective Time of the Merger
may vary significantly from the price as of the date of execution of the Merger
Agreement or the date hereof or the date of the Special Meeting. These variances
may be due to changes in the business, operations and prospects of QuadraMed or
Medicus, market assessments of the likelihood that the Merger will be
consummated and the timing thereof, the effect of any conditions or restrictions
imposed on or proposed with respect to the combined companies by regulatory
agencies in connection with or following consummation of the Merger, general
market and economic conditions, and other factors. For example, between January
1, 1997 and February 27, 1998, the sales price of the QuadraMed Common Stock
ranged from a high of $31.875 to a low of $6.75.
    
 
   
     Variances in the price of QuadraMed Common Stock will affect the QuadraMed
Stock Value and therefore the Exchange Ratio and the amount of stock
consideration received by Medicus stockholders who elect to receive QuadraMed
Common Stock in the Merger. Specifically, the Exchange Ratio will be adjusted
based on certain changes in the stock price of the QuadraMed Common Stock: (1)
if the QuadraMed Stock Value exceeds $27.60, the Exchange Ratio shall be the
quotient obtained by dividing (A) $8.625 by (B) the QuadraMed Stock Value, and
(2) if the QuadraMed Stock Value is less than $24.00, the Exchange Ratio shall
be the quotient obtained by dividing (A) $7.50 by (B) the QuadraMed Stock Value.
The "QuadraMed Stock Value" is equal to the average of the closing prices of
QuadraMed Common Stock during the 15 days prior to the second day prior to the
Special Meeting. Given the potential for market price variations discussed above
and that the QuadraMed Stock Value will not be determined until two days prior
to the Special Meeting, the QuadraMed Stock Value may be substantially more or
less than the value of the QuadraMed Common Stock as of the date of execution of
the Merger Agreement, the date hereof or the date of the Special Meeting. In
addition, Medicus stockholders who elect to receive QuadraMed Common Stock in
the Merger, unlike Medicus stockholders who elect to receive $7.50 in cash per
share, may receive the equivalent of $8.625 per share of Medicus Common Stock in
the Merger if the QuadraMed Stock Value exceeds $27.60; however, they will also
become stockholders of QuadraMed and should consider the risks associated with
owning QuadraMed Common Stock disclosed in this Proxy Statement/Prospectus.
    
 
HISTORY OF OPERATING LOSSES; UNCERTAIN PROFITABILITY
 
   
     QuadraMed incurred net losses of $4.9 million and $9.4 million for the
years ended December 31, 1994 and 1995, respectively, and as of September 30,
1997 had an accumulated deficit of $12.3 million. Medicus incurred net losses of
$3.7 million and $4.2 million for the years ended May 31, 1996 and 1997,
respectively, and for the six months ended November 30, 1997, had a net loss of
$1.4 million and an accumulated deficit of $9.3 million. Although QuadraMed
recorded net income of $153,000 and $2.8 million for the year ended December 31,
1996 and the nine months ended September 30, 1997, respectively, these results
do not include the effect of the Medicus merger and the RHP Mergers. On a pro
forma basis, after giving effect to the acquisitions of Synergy, HRM, the
Medicus Merger, and the RHP Mergers, QuadraMed's net loss for the year ended
December 31, 1996 and the nine months ended September 30, 1997 would have been
$9.2 million and $7.8 million, respectively. In connection with the Merger and
other acquisitions, QuadraMed has and will incur significant non-recurring
charges and will be required to amortize significant expenses related to
goodwill and other intangible assets in future periods. There can be no
assurance that QuadraMed will be able to achieve or sustain revenue growth or
profitability on a quarterly or annual basis. See "SUMMARY -- QuadraMed Selected
Financial Data," "-- Medicus Selected Financial Data," "UNAUDITED CONDENSED
COMBINED PRO FORMA FINANCIAL INFORMATION OF QUADRAMED AND MEDICUS" and the
financial statements included in those documents listed in "INCORPORATION OF
CERTAIN DOCUMENTS BY REFERENCE."
    
                                       20
<PAGE>   29
 
POTENTIAL VARIABILITY IN QUARTERLY OPERATING RESULTS
 
     QuadraMed's quarterly revenues and operating results have varied
significantly in the past and are likely to vary substantially from quarter to
quarter in the future. Quarterly revenues and operating results may fluctuate as
a result of a variety of factors, including the following: integration of
acquired businesses, variability in demand for QuadraMed's products and
services; the number, timing and significance of announcements and releases of
product enhancements and new products by QuadraMed and its competitors; the
timing and significance of announcements concerning QuadraMed's present or
prospective strategic alliances; the termination of, or a reduction in,
offerings of QuadraMed's products and services; the loss of customers due to
consolidation in the health care industry; delays in product delivery requested
by customers; the length of the sales cycle or the timing of sales; the amount
of new potential contracts at the beginning of any particular quarter; customer
budgeting cycles and changes in customer budgets; investments by QuadraMed in
marketing, sales, research and development, and administrative personnel
necessary to support QuadraMed's anticipated operations; marketing and sales
promotional activities; software defects and other quality factors; and general
economic conditions.
 
   
     The timing of customer purchases is difficult to predict given the complex
procurement decision process associated with most health care providers and
payors. As a result, QuadraMed typically experiences, and Medicus and RHP have
experienced, sales cycles that extend over several quarters for new customers.
QuadraMed expects that these factors will result in variations in quarterly
revenues and operating results. Moreover, QuadraMed's operating expense levels,
which will increase with the addition of the businesses of Medicus, Rothenberg
and HRA are relatively fixed. If revenues are below expectations, net income is
likely to be disproportionately affected. Further, it is likely that in some
future quarter QuadraMed's revenues or operating results will be below the
expectations of securities analysts and investors. In such event, the trading
price of QuadraMed's Common Stock would likely be materially adversely affected.
    
 
INTEGRATION OF ACQUIRED COMPANIES INTO QUADRAMED
 
   
     QuadraMed has entered into the Merger Agreement with Medicus and completed
the RHP Mergers with the expectation that the Merger and the RHP Mergers will
result in certain benefits to QuadraMed as the combined company. Realizing the
benefits of the Merger and the RHP Mergers will depend in part upon the
successful integration of the businesses, products and employees of QuadraMed,
Rothenberg, HRA and Medicus in an efficient manner, and there can be no
assurance that such integration will not entail substantial costs, delays or
other problems or that such integration will be successfully completed.
Combining the companies will divert the attention of management from other
matters and will result in significant operational and administrative expense.
QuadraMed will incur a significant amortization expense in future periods as a
result of the Medicus acquisition. Any difficulties encountered in the
integration process could have a material adverse effect on the revenues and
operating results of the combined company. In addition, the process of combining
the companies could cause the interruption of, or a disruption in, the business
activities of the constituent companies, which could have a material adverse
effect on the operations and financial performance of the combined company. Even
if these companies are successfully integrated into QuadraMed, the acquired
operations may not achieve sales, productivity and profitability commensurate
with QuadraMed's historical operating results or with projected results of
QuadraMed, financial analysts and investors. Failure to achieve such projected
results would have a material adverse effect on QuadraMed's financial
performance, and in turn, on the market value of the QuadraMed Common Stock.
There can be no assurance that the combined company will realize any of the
anticipated benefits of the Merger and the RHP Mergers or that such acquisitions
will enhance QuadraMed's business or financial performance.
    
 
DEPENDENCE ON ACQUISITIONS FOR GROWTH
 
     QuadraMed intends to continue to expand in substantial part through
acquisitions of products, technologies and businesses. QuadraMed's ability to
expand successfully through acquisitions depends on many factors, including the
successful identification and acquisition of products, technologies or
businesses and management's ability to effectively negotiate and consummate
acquisitions and integrate and operate the new products, technologies or
businesses. There is significant competition for acquisition opportunities in
                                       21
<PAGE>   30
 
QuadraMed's industry, which may intensify due to increasing consolidation in the
health care industry, increasing the costs of capitalizing on acquisition
opportunities. QuadraMed competes for acquisition opportunities with other
companies that have significantly greater financial and management resources
than QuadraMed. The inability to successfully identify appropriate acquisition
opportunities, consummate acquisitions or successfully integrate acquired
products, technologies, operations, personnel or businesses could have a
material adverse effect on QuadraMed's business, financial condition and results
of operations. In addition, acquisitions may divert management's attention from
other business concerns, expose QuadraMed to the risks of entering markets in
which it has no direct prior experience or to risks associated with the market
acceptance of acquired products and technologies, or result in the loss of key
employees of QuadraMed or the acquired company. Moreover, acquisitions
(including the Merger and the RHP Mergers) by QuadraMed may result in
potentially dilutive issuances of equity securities, the incurrence of
additional debt and the recognition of amortization expenses related to goodwill
and other intangible assets, which could have a material adverse effect on its
business, financial condition and results of operations.
 
RISKS ASSOCIATED WITH ACQUISITIONS; NEED TO MANAGE CHANGING OPERATIONS
 
   
     Acquisitions, including the Medicus Merger and RHP Merger, involve a number
of special risks including, without limitation, managing geographically
dispersed operations, failure of the acquired business to achieve expected
results, failure to retain key personnel of the acquired business, inability to
integrate the new business into existing operations and risks associated with
unanticipated events or liabilities, potential increases in stock compensation
expense and increased compensation expense resulting from newly hired employees;
the assumption of unknown liabilities, potential disputes with the sellers of
one or more acquired entities, all of which could have a material adverse effect
on QuadraMed's business, results of operations and financial condition.
Additionally, customer dissatisfaction or performance problems at a single
acquired company could have an adverse effect on QuadraMed's reputation and its
sales and marketing initiatives. With the addition of the Medicus, Rothenberg
and HRA businesses, QuadraMed's anticipated future operations may place a strain
on its management systems and resources. QuadraMed expects that it will be
required to continue to improve its financial and management controls, reporting
systems and procedures, and will need to expand, train and manage its work
force. There can be no assurance that QuadraMed will be able to effectively
manage these tasks, and the failure to do so could have a material adverse
effect on its business, financial condition and results of operations.
    
 
NEED TO EXPAND SALES AND TECHNICAL SUPPORT CAPABILITIES
 
   
     A substantial percentage of QuadraMed's sales force is currently
inexperienced in selling QuadraMed's products and will remain so for some time.
With the addition of the Medicus, Rothenberg and HRA businesses, QuadraMed will
need to commit significant resources to further recruit, train, motivate, manage
and retain sales personnel to support its expanded product and service
offerings. While QuadraMed intends to commit funds to expand its sales
organization, there can be no assurance that QuadraMed will be able to recruit,
train, motivate, manage and retain additional sales personnel or that their
activities will result in additional revenues to QuadraMed. In addition,
QuadraMed recognizes that as its level of sales increases, it will need to
expand its technical support capabilities to service its expanding customer
base. Competition for qualified sales and technical support personnel in the
software industry is intense. Failure by QuadraMed to effectively expand its
sales and technical support capabilities could have a material adverse effect on
QuadraMed's business, financial condition and results of operations.
    
 
     In addition, QuadraMed intends to develop a national sales force that will
be responsible for particular customers rather than particular products. This
approach will require additional training so that sales personnel may become
more familiar with QuadraMed's broader range of product and service offerings.
There can be no assurance that QuadraMed will be successful in its efforts to
restructure its sales and marketing approach, and any failure to successfully
implement such strategy could have a material adverse effect on its business,
financial condition and results of operations.
 
                                       22
<PAGE>   31
 
DEPENDENCE ON KEY PERSONNEL
 
   
     QuadraMed's performance also depends in significant part upon the continued
service of its executive officers, its product managers and other key sales,
marketing, and development personnel, including such key personnel associated
with Medicus, Rothenberg and HRA who must be successfully integrated into
QuadraMed's management team. The loss of the services of any of its executive
officers or the failure to hire or retain other key employees could have a
material adverse effect on QuadraMed's business, financial condition and results
of operations. Additions of new, and departures of existing, personnel can be
disruptive and could have a material adverse effect on QuadraMed's business,
financial condition and results of operations.
    
 
EXPANDED PRODUCT AND SERVICE OFFERINGS; RELIANCE ON CROSS-SELLING PRODUCTS AND
SERVICES TO CUSTOMERS
 
   
     With the acquisition of the Medicus, Rothenberg and HRA businesses,
QuadraMed will further expand the complexity of its product and service
offerings and broaden its customer base to include physicians and other
non-hospital health care providers. Prior to the RHP Mergers, QuadraMed's
customers were typically hospitals and other health care providers, and
substantially all of QuadraMed's revenues were derived from the sale of software
products and services to hospitals. With the addition of the Medicus, Rothenberg
and HRA businesses, QuadraMed intends to direct its sales and marketing efforts
to a broader customer base than it has previously addressed, including
cross-selling its expanded product and service offerings to existing customers
of QuadraMed, Medicus, Rothenberg and HRA. Additionally, QuadraMed intends to
continue to expand its product and service offerings in the future. The addition
by QuadraMed to its product and service offerings presents certain risks and
uncertainties involving QuadraMed's relative unfamiliarity with these new
products and services and the market for such new products and services. There
can be no assurance that QuadraMed will be successful in its cross-selling
efforts or in developing or integrating new products and services, or that its
existing customers will accept such new products and services. Additionally,
there can be no assurance that QuadraMed will retain its existing customers or
the existing customers of Medicus, Rothenberg and HRA. In particular, Medicus
and Rothenberg have each released Windows(TM)-based versions of their products
and may choose not to continue to provide technical support for old versions of
their product. If the combined company chooses not to provide this technical
support, existing Medicus and Rothenberg customers may be lost. Any failure by
QuadraMed to successfully cross-sell its products, to develop or integrate new
products and services or to retain existing customers of the combined company
could have a material adverse effect on its business, financial condition and
results of operations.
    
 
   
RISKS RELATED TO HOSPITAL AND MANAGED CARE MARKETS
    
 
   
     A substantial portion of QuadraMed's revenues have been and are expected to
be derived from the sale of software products and services to hospitals.
QuadraMed's financial performance is dependent on continued demand for its
products. Consolidation in the health care industry, particularly in the
hospital and managed care markets, could cause a decrease in the number of
potential purchasers of QuadraMed's products and services or the loss of one or
more of QuadraMed's significant customers, including existing customers of
Medicus, Rothenberg and HRA, insofar as customers may be acquired by another
company that uses products or services provided by a competitor of QuadraMed,
Medicus, Rothenberg or HRA. Any of these occurrences could have a material
adverse effect on QuadraMed's business, financial condition and results of
operations. In addition, the decision to purchase QuadraMed's products often
involves the approval of several members of management of a hospital or health
care provider. Consequently, it is difficult for QuadraMed to predict the timing
or outcome of the buying decisions of customers or potential customers.
    
 
     The health care industry in the United States is subject to changing
political, economic and regulatory influences that may affect the procurement
practices and operations of health care organizations. QuadraMed believes that
the commercial value and appeal of its products may be adversely affected if the
current health care financing and reimbursement system were to reverse its
current evolution to a managed care model back to a fee-for-service model. In
addition, many of QuadraMed's customers are providing services under capitated
service agreements, and a reduction in the use of capitation arrangements as a
result of regulatory or market changes could have a material adverse effect on
QuadraMed's business, financial condition and results
 
                                       23
<PAGE>   32
 
of operations. During the past several years, the health care industry has been
subject to increasing levels of governmental regulation of, among other things,
reimbursement rates and certain capital expenditures. Certain proposals to
reform the health care system have been and are being considered by Congress.
These proposals, if enacted, could change the operating environment for
QuadraMed's clients in ways that cannot be predicted. Health care organizations
may react to these proposals by curtailing or deferring investments, including
those for QuadraMed's products and services.
 
HIGHLY COMPETITIVE MARKET
 
   
     Competition in the market for QuadraMed's products and services (including
products and services acquired from Medicus and RHP by QuadraMed) is intense and
is expected to increase. Increased competition could result in price reductions,
reduced gross margins and loss of market share, any of which could materially
adversely affect QuadraMed's business, financial condition and results of
operations. While no one firm competes directly in all niches in which Medicus
or Rothenberg offers products, Medicus and Rothenberg each compete with several
firms of varying size and geographic coverage in each of their market niches.
QuadraMed's competitors include other providers of health care information
software and services, as well as health care consulting firms. The combined
company's principal competitors include: (i) CIS Technologies, Inc., a division
of National Data Corporation, Inc., and Sophisticated Software, Inc. in the
market for its EDI products; (ii) Envoy Corp. and MedE AMERICA in the market for
its claims processing service; (iii) Healthcare Cost Consultants, Inc., a
division of CIS Technologies, Inc., and Trego Systems, Inc. in the market for
its contract management products; (iv) IMNET Systems, Inc., Optika Imaging
Systems, Inc. and LanVision Systems, Inc. in the market for its electronic
document management products; (v) Transition Systems, Inc. and Healthcare
Microsystems, Inc., a division of Health Management Systems Inc., HCIA Inc. and
MediQual Systems, Inc., a division of Cardinal Health, Inc., in the market for
its decision support products; (vi) HMS and ARTRAC, a division of Medaphis Corp.
in the market for its business office outsourcing services; and (vii) a
subsidiary of Minnesota Mining and Manufacturing and CodeMaster in the market
for its medical records products. In addition, current and prospective customers
evaluate QuadraMed's capabilities against the merits of their existing
information systems and expertise. Furthermore, major software information
systems companies, including those specializing in the health care industry, not
presently offering products that compete with those offered by QuadraMed may
enter QuadraMed's markets. In addition, many of QuadraMed's competitors and
potential competitors have significantly greater financial, technical, product
development, marketing and other resources and market recognition than
QuadraMed. Many of QuadraMed's competitors also currently have, or may develop
or acquire, substantial installed customer bases in the health care industry. As
a result of these factors, QuadraMed's competitors may be able to respond more
quickly to new or emerging technologies and changes in customer requirements or
to devote greater resources to the development, promotion and sale of their
products than QuadraMed. There can be no assurance that QuadraMed will be able
to compete successfully against current and future competitors or that
competitive pressures faced by QuadraMed will not materially adversely affect
its business, financial condition and results of operations.
    
 
NEW PRODUCT DEVELOPMENT AND SYSTEM ENHANCEMENT
 
     QuadraMed's performance will depend in large part upon QuadraMed's ability
to provide the increasing functionality required by its customers through the
timely development and successful introduction of new products and enhancements
to its existing suite of products. QuadraMed has historically devoted
significant resources to product enhancements and research and development and
believes that significant continuing development efforts will be required to
sustain its operations and integrate the products and technologies of acquired
businesses. There can be no assurance that QuadraMed will successfully or in a
timely manner develop, acquire, integrate, introduce and market new product
enhancements or products, or that product enhancements or new products developed
by QuadraMed will meet the requirements of hospitals or other health care
providers and payors and achieve or sustain market acceptance.
 
                                       24
<PAGE>   33
 
LIMITED PROPRIETARY RIGHTS; RISK OF INFRINGEMENT
 
     QuadraMed relies on a combination of trade secrets, copyright and trademark
laws, nondisclosure and other contractual provisions to protect its proprietary
rights. QuadraMed has not filed any patent applications covering its technology.
There can be no assurance that measures taken by QuadraMed to protect its
intellectual property will be adequate or that QuadraMed's competitors will not
independently develop products and services that are substantially equivalent or
superior to those of QuadraMed.
 
     Substantial litigation regarding intellectual property rights exists in the
software industry, and QuadraMed expects that software products may be
increasingly subject to third-party infringement claims as the number of
competitors in QuadraMed's industry segment grows and the functionality of
products overlaps. Although QuadraMed believes that its products do not infringe
upon the proprietary rights of third parties, there can be no assurance that
third parties will not assert infringement claims against QuadraMed in the
future or that a license or similar agreement will be available on reasonable
terms in the event of an unfavorable ruling on any such claim. In addition, any
claim may require QuadraMed to incur substantial litigation expenses or subject
QuadraMed to significant liabilities and could have a material adverse effect on
QuadraMed's business, financial condition and results of operations. QuadraMed
has recently received notice of a claim filed with the United States Trademark
Appeal Board for the cancellation of its registered QuanTIM(R) trademark, and
also has recently received a letter from a separate third party challenging this
trademark. There can be no assurance that QuadraMed will be successful in its
defense of these or similar claims.
 
RISK OF PRODUCT DEFECTS; FAILURE TO MEET PERFORMANCE CRITERIA
 
   
     Products such as those offered by the combined company frequently contain
errors or failures, especially when initially introduced or when new versions
are released. Although each company conducts extensive testing, software errors
have been discovered in certain enhancements and products after their
introduction. There can be no assurance that, despite testing by QuadraMed and
by current and potential customers, errors or performance failures will not
occur in products under development or in other enhancements or products after
commencement of commercial shipments, resulting in loss of revenues and
customers, delay in market acceptance, diversion of development resources,
damage to QuadraMed's reputation or increased service and warranty costs, any of
which could have a material adverse effect upon its business, financial
condition and results of operations.
    
 
RISK OF INTERRUPTION OF DATA PROCESSING
 
     QuadraMed currently processes substantially all its customer data at its
facilities in Larkspur, California and Neptune, New Jersey. While QuadraMed has
safeguards for emergencies such as power interruption or breakdown in
temperature controls, it has no mirror processing site to which processing could
be transferred in the case of a catastrophic event at either of these
facilities. The occurrence of a major catastrophic event at either the Larkspur
or the Neptune facility could lead to an interruption of data processing and
could have a material adverse effect on QuadraMed's business, financial
condition and results of operations.
 
RISKS RELATED TO OUTSOURCING BUSINESS
 
     QuadraMed provides business office outsourcing and cash flow management
services, including the billing and collection of receivables. The
infrastructure for QuadraMed's outsourcing business was acquired by QuadraMed.
In addition, QuadraMed often uses its software products to provide outsourcing
services. As a result, QuadraMed has not been required to make significant
capital expenditures in order to service existing outsourcing contracts.
However, if QuadraMed experiences a period of substantial expansion in its
outsourcing business, it may be required to make substantial investments in
capital assets and personnel, and there can be no assurance that it will be able
to assess accurately the investment required and negotiate and perform in a
profitable manner any of the outsourcing contracts it may be awarded.
QuadraMed's failure to estimate accurately the resources and related expenses
required for a project or its failure to complete its contractual obligations in
a manner consistent with the project plan upon which a contract was based could
have a
 
                                       25
<PAGE>   34
 
material adverse effect on its business, financial condition and results of
operations. In addition, QuadraMed's failure to meet a client's expectations in
the performance of its services could damage QuadraMed's reputation and
adversely affect its ability to attract new business. Finally, QuadraMed could
incur substantial costs and expend significant resources correcting errors in
its work, and could possibly become liable for damages caused by these errors.
 
GOVERNMENT REGULATION
 
     The United States Food and Drug Administration (the "FDA") is responsible
for assuring the safety and effectiveness of medical devices under the Federal
Food, Drug and Cosmetic Act. Computer products are subject to regulation when
they are used or are intended to be used in the diagnosis of disease or other
conditions, or in the cure, mitigation, treatment or prevention of disease, or
are intended to affect the structure or function of the body. The FDA could
determine in the future that any predictive aspects of QuadraMed's products make
them clinical decision tools subject to FDA regulation. Compliance with these
regulations could be burdensome, time consuming and expensive. QuadraMed also
could become subject to future legislation and regulations concerning the
development and marketing of health care software systems. Such legislation
could increase the cost and time necessary to market new products and could
affect QuadraMed in other respects not presently foreseeable. QuadraMed cannot
predict the effect of possible future legislation and regulation.
 
     The confidentiality of patient records and the circumstances under which
such records may be released for inclusion in QuadraMed's databases are subject
to substantial regulation by state governments. These state laws and regulations
govern both the disclosure and the use of confidential patient medical record
information. Although compliance with these laws and regulations is at present
principally the responsibility of the hospital, physician or other health care
provider, regulations governing patient confidentiality rights are evolving
rapidly. Additional legislation governing the dissemination of medical record
information has been proposed at both the state and federal levels. This
legislation may require holders of such information to implement security
measures that may require substantial expenditures by QuadraMed. There can be no
assurance that changes to state or federal laws will not materially restrict the
ability of health care providers to submit information from patient records
using QuadraMed's products.
 
UNCERTAINTY IN THE HEALTH CARE INDUSTRY
 
     The health care industry is subject to changing political, economic and
regulatory influences that may affect the procurement practices and operation of
health care organizations. Changes in current health care financing and
reimbursement systems could result in the need for unplanned product
enhancements, in delays or cancellations of product orders or shipments or in
the revocation of endorsement of QuadraMed's products by hospital associations
or other customers. Any of these occurrences could have a material adverse
effect on QuadraMed's business, financial condition and results of operations.
In addition, many health care providers are consolidating to create integrated
health care delivery systems with greater regional market power. As a result,
these emerging systems could have greater bargaining power, which may lead to
price erosion of QuadraMed's products. The failure of QuadraMed to maintain
adequate price levels would have a material adverse effect on QuadraMed's
business, financial condition and results of operations. Other market-driven
reforms could also have unpredictable effects on QuadraMed's business, financial
condition and results of operations.
 
RISK OF PRODUCT-RELATED CLAIMS
 
   
     Certain of the combined company's products and services relate to the
payment, collection, coding and billing of health care claims and the
administration of managed care contracts. Any failure by employees of QuadraMed
or by QuadraMed's products to accurately assess, process or collect such claims
could result in claims against QuadraMed by its customers. QuadraMed has been
and currently is involved in claims related to services provided by its accounts
receivable management business. QuadraMed maintains insurance to protect against
certain claims associated with the use of its products, but there can be no
assurance that its insurance coverage would adequately cover any claim asserted
against QuadraMed. A successful claim
    
                                       26
<PAGE>   35
 
brought against QuadraMed that is in excess of, or excluded from, its insurance
coverage could have a material adverse effect on its business, financial
condition and results of operations. Even unsuccessful claims could result in
QuadraMed's expenditure of funds in litigation and management time and
resources. There can be no assurance that QuadraMed will not be subject to
material claims in the future, that such claims will not result in liability in
excess of its insurance coverage, that QuadraMed's insurance will cover such
claims or that appropriate insurance will continue to be available to QuadraMed
in the future at commercially reasonable rates. In addition, if liability of
QuadraMed were to be established, substantial revisions to its products could be
required that may cause it to incur additional unanticipated research and
development expenses.
 
RISKS ASSOCIATED WITH CERTAIN INVESTMENTS
 
     QuadraMed has made, and may continue to make in the future, certain
investments in which it obtains a minority equity interest in certain early
stage companies. QuadraMed does not have the ability to control the operations
of any of these companies. Investing in early stage companies is subject to
certain significant risks, and there can be no assurance that any of these
companies will be successful or achieve profitability or that QuadraMed will
ever realize a return on its investments. To the extent any of these companies
are unprofitable, QuadraMed may be required to recognize a loss on its
investment during a reporting period. Any loss in connection with these
investments could have a material adverse effect on QuadraMed's business,
financial condition or results of operations during a particular reporting
period. In addition, to the extent any of such companies fail or become bankrupt
or insolvent, QuadraMed may be required to record a total loss on its
investment, which could have a material adverse effect on its results of
operations during a particular reporting period.
 
POTENTIAL EFFECT OF ANTI-TAKEOVER PROVISIONS
 
     Certain provisions of Delaware law applicable to QuadraMed could have the
effect of delaying, deterring or preventing a change in control of QuadraMed,
including Section 203 of the Delaware General Corporation Law, which prohibits a
Delaware corporation from engaging in any business combination with any
interested stockholder for a period of three years from the date the person
became an interested stockholder unless certain conditions are met. In addition,
QuadraMed's Certificate of Incorporation and Bylaws contain certain provisions
that could discourage potential takeover attempts and make attempts by
stockholders to change management more difficult. QuadraMed's Board of Directors
is classified into three classes of directors serving staggered, three-year
terms and has the authority without action by QuadraMed's stockholders to fix
the rights and preferences and issue shares of preferred stock, and to impose
various procedural and other requirements that could make it more difficult for
stockholders to effect certain corporate actions. QuadraMed's Certificate of
Incorporation provides that directors may be removed only by the affirmative
vote of the holders of two-thirds of the shares of capital stock of the
corporation entitled to vote. Any vacancy on the Board of Directors may be
filled only by vote of the majority of directors then in office. Further,
QuadraMed's Certificate of Incorporation provides that any "Business
Combination" (as therein defined) requires the affirmative vote of two-thirds of
the shares entitled to vote, voting together as a single class. These
provisions, and certain other provisions of the Certificate of Incorporation
which may have the effect of delaying proposed stockholder actions until the
next annual meeting of stockholders, could have the effect of delaying or
preventing a tender offer for QuadraMed's Common Stock or other changes of
control or management of QuadraMed, which could adversely affect the market
price of the QuadraMed Common Stock.
 
SHARES ELIGIBLE FOR FUTURE SALE; POSSIBLE VOLATILITY OF STOCK PRICE; LOW TRADING
VOLUME
 
     After the Merger and assuming the issuance of 1,800,000 shares of QuadraMed
Common Stock pursuant to the Merger Agreement and the Warrants, approximately
[     ] shares of QuadraMed Common Stock issued to holders of Medicus Common
Stock and the Warrants will be freely tradeable, and an additional [     ]
shares of QuadraMed Common Stock will be tradeable under Rule 145 under the
Securities Act. Additionally, QuadraMed has issued 1,588,701 shares of QuadraMed
Common Stock in connection with the RHP Mergers, all of which are being
registered under the Securities Act on a Form S-3 filed concurrently
 
                                       27
<PAGE>   36
 
with the registration statement on Form S-4 filed in connection with this Proxy
Statement/Prospectus. As a result, substantial sales of QuadraMed Common Stock
could occur immediately after the Merger. Sales of a substantial number of the
aforementioned shares of QuadraMed Common Stock could adversely affect or cause
substantial fluctuations in the market price of QuadraMed Common Stock and
impair QuadraMed's ability to raise additional capital through the sale of its
equity securities.
 
     The stock market historically has experienced volatility which has affected
the market price of securities of many companies and which has sometimes been
unrelated to the operating performance of such companies. The trading price of
QuadraMed's Common Stock could also be subject to significant fluctuations in
response to variations in quarterly results of operations, announcements of new
products or acquisitions by QuadraMed or its competitors, governmental
regulatory action, other developments or disputes with respect to proprietary
rights, general trends in the industry and overall market conditions, and other
factors. The market price may also be affected by movements in prices of equity
securities in general. In addition, the average daily trading volume of
QuadraMed's Common Stock since public trading of the Common Stock commenced has
been low. To the extent this trading pattern continues, the price of the Common
Stock may fluctuate significantly as a result of relatively minor changes in
demand for such shares and sales of stock by stockholders.
 
RISKS RELATED TO MEDICUS LITIGATION
 
   
     On July 11, 1997, St. Joseph Hospital filed a lawsuit, St. Joseph Hospital
v. Medicus Systems Corporation, File No. 97-36574, in the District Court of
Harris County, Texas. The complaint alleges primarily breach of a contract to
provide case management software, and seeks unspecified damages, including
attorney's fees. Medicus vigorously denies any liability, and has filed an
answer denying the plaintiff's claims. In addition, Medicus has filed
counterclaims asserting breach of contract and fraudulent inducement. Medicus
believes that it has meritorious defenses to the plaintiff's claims, and it
intends to defend the litigation vigorously. However, due to the nature of the
litigation, the combined company cannot determine the total expense or possible
loss, if any, that may ultimately be incurred either in the context of a trial,
or as a result of a negotiated settlement. Regardless of the ultimate outcome of
the litigation, it could result in significant diversion of time by the combined
company's personnel. While management believes that the resolution of these
matters will not have a material adverse effect on the combined company's
business, financial condition and results of operations, the results of these
proceedings, including any potential settlement, are uncertain and there can be
no assurance that management's beliefs will be realized.
    
 
                                       28
<PAGE>   37
 
                                SPECIAL FACTORS
 
BACKGROUND OF THE MERGER
 
     From time to time, QuadraMed has evaluated strategic alliances, including
business combinations with other companies that could complement and strengthen
QuadraMed's product offerings and revenues. Similarly, from time to time,
Medicus has considered various opportunities for expanding its base of products
and distribution. QuadraMed and Medicus believe that the product lines of the
two companies are complementary, and that the Merger will strengthen the
resources, product offerings and distribution channels for each company.
 
     During 1996, management of Medicus, and in particular, Richard C. Jelinek,
who served as Chairman of the Board of Medicus and had voting control of Medicus
until March 19, 1997, explored the possibility of some form of business
combination with another company. Mr. Jelinek had, for some time, expressed his
concern that Medicus was too small to take advantage of the marketplace. He
believed that not only did Medicus lack the profitability and positive cash flow
to finance appropriate research and development, but also that the stand-alone
products being developed by Medicus would be best developed, marketed and sold
as part of a family of similar related products. Management had serious
discussions with two companies expressing preliminary interests in acquiring
Medicus during this period, but by October, 1996, both companies had informed
Medicus that they were not interested in pursuing discussions at that time.
 
   
     Mr. Jelinek continued to be interested in selling Medicus or his shares of
Medicus. Other Medicus directors did not believe that continuing discussions
with potential buyers at that time were in the best interest of Medicus. These
directors believed that Medicus would benefit from a period of uninterrupted
focus on its operations. In December 1996, representatives of Medicus reached an
agreement in principle with Mr. Jelinek whereby Medicus would acquire 1,000,000
shares of Medicus Common Stock and all of the controlling Medicus Voting
Preferred Stock from Mr. Jelinek. In such transaction, Medicus acquired an
aggregate 1,000,000 shares of Medicus Common Stock and all of the outstanding
Voting Preferred Stock (500 shares) of Medicus from Mr. Jelinek and a trust of
which Mr. Jelinek is an income beneficiary. The aggregate consideration paid
consisted of $4,500,000 in cash, $2,000,000 in promissory notes, and warrants to
purchase 400,000 shares of Medicus Common Stock at a price of $8.00 per share,
which warrants were valued at $944,000. Of the total purchase price of
$7,444,000, $1,500,000 was allocated to the Voting Preferred Stock and
$5,944,000 (or $5.944 per share) was allocated to the Medicus Common Stock. This
transaction was completed on March 19, 1997.
    
 
     Following the March 19, 1997 repurchase of part of Mr. Jelinek's common
stock and all of his controlling Voting Preferred Stock, Medicus' financial
performance failed to meet the expectations of management or the Medicus Board.
Cash flow was less than anticipated and projected future research and
development costs exceeded previously projected levels. As a result, at a
meeting on July 10-11th, 1997, the Medicus Board expressed the view for the
first time that Mr. Jelinek's analysis might be correct and directed management,
among other things, to initiate discussions with selected investment bankers,
potential strategic partners and venture capital firms, concerning a possible
investment, refinancing or business combination involving Medicus.
 
   
     Following this July Board meeting, Patrick Sommers, Chief Executive Officer
of Medicus, and Dan DiCaro, Chief Financial Officer of Medicus, held discussions
with representatives of several investment banks, venture capital firms, and
companies in the health care software business. These meetings included
discussions of the possibility of investment banking or venture capital firms
with significant healthcare investments and expertise making a significant
investment in Medicus or arranging a buyout of the publicly held shares of
Medicus Common Stock; however, it became clear to the Medicus representatives
that in connection with any such investment, such firms would require terms that
would be unfavorable to existing Medicus stockholders. Mr. Sommers and Mr.
DiCaro also spoke with representatives of other companies in the healthcare
software business concerning possible mergers or other business combinations,
but none of such other companies expressed any significant interest in such a
transaction. Therefore, none of these discussions other than the
    
 
                                       29
<PAGE>   38
 
discussions with representatives of QuadraMed described below appeared likely to
result in a transaction that would be favorable to Medicus or its stockholders.
 
     On August 12, 1997, Mr. Sommers and Lon Gruen, Senior Vice President,
Marketing, of Medicus, met with James D. Durham, Chairman and Chief Executive
Officer of QuadraMed, at QuadraMed's offices in Larkspur, California, presented
the Medicus business plan and discussed a possible acquisition of Medicus by
QuadraMed. QuadraMed expressed interest in receiving more information concerning
Medicus.
 
     On September 2, 1997 Mr. Sommers, Mr. Gruen and Mr. DiCaro met with Mr.
Durham and other members of QuadraMed management, as well as representatives of
Jefferies & Co., in Larkspur, and discussed the Medicus business model.
QuadraMed and Medicus signed a confidentiality agreement at this meeting.
 
     Mr. Sommers received a call on October 1, 1997 from Mr. Durham, during
which Mr. Durham indicated that QuadraMed continued to be interested in learning
more about Medicus but that QuadraMed was in the process of a public offering
and any further discussions could not take place until that offering was
completed.
 
     At a Medicus Board meeting on October 1 and October 2, Mr. Sommers
described his discussions to date with QuadraMed. The Board directed Mr. Sommers
to continue with such discussions.
 
     On October 23, 1997, Medicus received a letter from QuadraMed formally
proposing a merger transaction for a cash consideration of $6.00 per share,
subject to certain approvals and contingencies including negotiation of a
definitive acquisition agreement. On October 28, 1997, the Medicus Board met via
teleconference to discuss the proposal. Neither Mr. Sommers nor Mr. Jelinek
participated in this meeting. The Medicus Board felt that the purchase price
reflected in the offer was too low. However, the Medicus Board established a
special committee consisting of Dorsey Gardner, chair; Jon Jacoby and Patrick
Sommers (the "Special Committee") to negotiate with QuadraMed and attempt to
obtain a higher price.
 
     The Special Committee met after the Board meeting on October 28, and Mr.
Sommers was directed to prepare a proposal to present to QuadraMed justifying a
higher price. The Special Committee met again on October 30 to review this
proposal.
 
     Later on October 30, 1997, Mr. Sommers and Mr. DiCaro met with Mr. Durham
and John Cracchiolo, Chief Financial Officer of QuadraMed, at the Medicus
offices in Evanston, Illinois, gave further detailed information about Medicus
to the QuadraMed representatives, and discussed the QuadraMed offer. During
these discussions, Mr. Sommers and Mr. DiCaro explained why they believed
Medicus was worth more than $6.00 per share to QuadraMed. They also suggested
that Medicus stockholders would benefit by being offered the option of receiving
either cash or QuadraMed stock. At the conclusion of the meeting QuadraMed
representatives verbally raised QuadraMed's offer to $7.00 per share payable in
either cash, shares of QuadraMed Common Stock or a combination thereof, subject
to certain approvals and contingencies including negotiation of a definitive
acquisition agreement.
 
     The Special Committee, with William Brown (a director and Secretary of
Medicus) participating, met by teleconference on November 2, 1997 and determined
that, while the Special Committee would not make a recommendation, QuadraMed's
latest offer should be presented to the entire Medicus Board. The Medicus Board
met on November 3, 1997 via teleconference to discuss the revised proposal and
instructed Mr. Sommers to continue to negotiate to obtain a higher price.
 
     Mr. Sommers met with Mr. Durham and Mr. Cracchiolo in QuadraMed's offices
on November 4, 1997 and discussed the offer and the need for a higher purchase
price to secure unanimous approval of the Medicus Board. At this meeting,
subject to further consultation with directors, QuadraMed tentatively agreed to
raise the purchase price to $7.50 per share payable in either cash, shares of
QuadraMed Common Stock or a combination thereof. On November 5, 1997 Medicus
received a formal offer from QuadraMed at a purchase price of $7.50 per share,
payable in cash, QuadraMed Common Stock or a combination thereof, subject to
certain approvals and contingencies including negotiation of a definitive
acquisition agreement.
 
                                       30
<PAGE>   39
 
     On November 6, 1997 the Medicus Board met via teleconference to discuss the
revised proposal. The Board unanimously approved the basic terms of the offer,
subject to negotiation of an acceptable definitive agreement, and instructed Mr.
Sommers to enter into such negotiations.
 
     Mr. Sommers and Medicus management and their representatives met with
members of QuadraMed management and their representatives in Evanston beginning
November 7, and from November 7 through November 9, such representatives
negotiated and drafted the definitive Merger Agreement.
 
   
     At a meeting of the QuadraMed Board held by teleconference on November 9,
the QuadraMed Board unanimously approved the Stock Purchase Agreements, the
Warrants, the Merger and the Merger Agreement. One director of QuadraMed, Mr.
Kenneth E. Jones, who was travelling in the Middle East, did not participate in
the November 9 meeting. Mr. Thomas F. McNulty, a director of QuadraMed,
abstained from voting because he holds options to purchase Medicus Common Stock.
    
 
     At a meeting of the entire Medicus Board held by teleconference on November
9, the Medicus Board unanimously approved the Merger and the Merger Agreement.
 
     The companies executed the Merger Agreement on Sunday afternoon, November
9, 1997, and the agreement to merge was publicly announced early Monday morning,
November 10, 1997 by the issuance of a joint press release.
 
   
     In separately negotiated transactions, QuadraMed also executed the Stock
Purchase Agreements, dated as of November 9, 1997 with certain stockholders of
Medicus and completed the purchase of 3,111,105 shares of Medicus Common Stock,
which at the time accounted for 56.7% of the outstanding shares of Medicus
Common Stock. QuadraMed initiated discussions with each of the stockholders by
making a verbal offer to purchase the shares of Medicus Common Stock held by
each. Each stockholder then received written offer letters from QuadraMed, which
included a copy of a stock purchase agreement and other information about
QuadraMed. Each of the transactions was consummated during the week of November
10, 1997. The Medicus Board and management of Medicus were aware of the offer to
the Medicus stockholders, when the Merger was approved and the Merger Agreement
was signed; however, the stock purchase transactions occurred independently of
the execution of the Merger Agreement. See "THE STOCK PURCHASE AGREEMENTS AND
WARRANTS."
    
 
PURPOSE AND STRUCTURE OF THE MERGER
 
   
     The purpose of the Merger is for QuadraMed to acquire the entire equity
interest in Medicus. Because holders of Medicus Common Stock have the right to
elect to receive QuadraMed Common Stock, they will have the opportunity to
maintain an indirect equity interest in Medicus.
    
 
SOURCE AND AMOUNT OF FUNDS
 
   
     If all Medicus stockholders elect to receive cash in the Merger and
assuming no current Medicus option holders exercise options to purchase Medicus
Common Stock, approximately $17.9 million will be required to pay the Merger
Consideration. In addition, QuadraMed will pay fees and expenses of
approximately $2.2 million in connection with the Merger, which amount includes
fees payable to Jefferies & Co. in the amount of $675,750 and to Volpe Brown
Whelan & Company, LLC (paid by QuadraMed on behalf of Medicus) in the amount of
$250,000. The cash required in connection with the Merger will be provided by
current cash resources of QuadraMed.
    
 
   
     In connection with its purchase of 3,111,105 shares of Medicus Common
Stock, QuadraMed paid cash to the Selling Stockholders of approximately $23.3
million, which amount was funded by QuadraMed's existing cash resources.
    
 
CERTAIN EFFECTS OF THE MERGER; PLANS FOR THE COMPANY AFTER THE MERGER
 
     Following the Merger, QuadraMed will own 100% of the outstanding capital
stock of the Surviving Corporation (as defined in "THE MERGER AGREEMENT -- The
Merger"). As such, QuadraMed will be
 
                                       31
<PAGE>   40
 
the direct beneficiary of any future earnings and growth of the Surviving
Corporation, and will have the ability to benefit from any divestitures,
strategic acquisitions or other corporate opportunities that may be pursued by
the Surviving Corporation in the future. Upon the consummation of the Merger,
each share of Medicus Common Stock issued and outstanding immediately prior to
the Effective Time (other than any shares of Medicus Common Stock owned by
Medicus or QuadraMed) will be cancelled and extinguished and be converted into
the right to receive the Merger Consideration and the stockholders of Medicus
will cease to have any direct ownership interest in Medicus.
 
     As a result of the Merger, the Surviving Corporation will be privately held
and there will be no market for the Medicus Common Stock. Upon consummation of
the Merger, the Medicus Common Stock will cease to be listed on the Nasdaq
National Market and the registration of the Medicus Common Stock under the
Exchange Act will be terminated. Accordingly, Medicus will no longer be required
to file periodic reports with the Commission.
 
   
     It is expected that following the Merger, the business and operations of
Medicus will be continued under the QuadraMed name and QuadraMed will continue
to evaluate Medicus' business and operations after the consummation of the
Merger and make such changes as are deemed appropriate. Specifically, employees
in Medicus' decision support operations will report to the manager of
QuadraMed's value added services division, and employees in QuadraMed's existing
medical records product lines will report to the manager of the Medicus medical
records division. Except as otherwise indicated in this Proxy
Statement/Prospectus, QuadraMed does not have any plans or proposals subsequent
to the Merger that relate to or would result in any extraordinary corporate
transaction, such as a merger, reorganization or liquidation, involving Medicus,
or a sale or transfer of a material amount of the assets of Medicus. QuadraMed
has begun combining certain redundant operations of Medicus and eliminating
certain corporate operations previously conducted at Medicus, including certain
human resource and finance functions.
    
 
RECOMMENDATION OF THE BOARD OF DIRECTORS OF MEDICUS; REASONS FOR THE MERGER
 
   
     At its November 9, 1997 meeting, the Medicus Board of Directors unanimously
determined that the Merger, upon the terms and conditions set forth in the
Merger Agreement, is fair to, and in the best interests of, the holders of
Medicus Common Stock, including non-affiliated stockholders of Medicus.
Accordingly, the Medicus Board of Directors has unanimously adopted the Merger
Agreement and unanimously recommends that Medicus stockholders vote for approval
and adoption of the Merger Agreement and the transactions contemplated thereby,
including the Merger, at the Special Meeting. See "-- Background of the Merger."
In reaching this determination, the Medicus Board of Directors considered a
number of factors, including those set forth below.
    
 
     At the time the Medicus Board approved the Merger Agreement, the members
unanimously believed that not only did Medicus lack the profitability and
positive cash flow to finance appropriate research and development, but also
that the stand-alone products being developed by Medicus would be best
developed, marketed and sold as part of a family of similar related products.
Based on management's discussions with investment banks, venture capital firms
and other companies described above, which discussions continued during the
period of the negotiations with QuadraMed, the QuadraMed proposal represented
both the most concrete and most favorable opportunity for Medicus and its
stockholders.
 
     The Medicus Board believes that the $7.50 consideration to be received in
the Merger represents a fair price to stockholders in light of both recent and
historical market prices of Medicus Common Stock and the future prospects for
Medicus' business. The Medicus Board also believes that the ability to continue
to participate in the growth of the Medicus business through the ownership of
QuadraMed Common Stock by those stockholders who elect to receive QuadraMed
Common Stock represents a favorable opportunity for such stockholders. In
addition, the Medicus Board believes that the Merger represents an excellent
opportunity to grow and improve the business of Medicus. While certain
administrative savings will result from the combination of the two companies,
their businesses also complement each other very well. In particular, the
combination of the decision support business of the two companies will enable
them to offer a more complete solution to customers; in addition, QuadraMed's
DRG Check product provides increased
 
                                       32
<PAGE>   41
 
functionality for Medicus' Clinical Data Systems customers. Finally, QuadraMed
possesses the capital resources necessary to effectively operate and expand
Medicus' businesses. These resources, together with the synergies and savings
referred to above, led the Medicus Board to conclude that QuadraMed's proposal
was an attractive opportunity to improve Medicus' business. The amount and form
of the Merger Consideration are, in the Medicus Board's opinion, fair and in the
best interests of Medicus' stockholders.
 
   
     In reaching its determination, the Medicus Board consulted with management,
as well as its legal counsel, and considered a number of factors, including the
material factors enumerated below. In particular, the Medicus Board considered
the following material positive factors:
    
 
   
          (i) the Board's knowledge of the business, operations, properties,
     assets, financial condition and operating results of Medicus;
    
 
          (ii) the Board's knowledge of, and confidence in, James D. Durham,
     QuadraMed's Chief Executive Officer, resulting from certain Board members'
     shared experiences with him as co-employees, co-directors and co-investors
     in several predecessor corporations of Medicus, Knowledge Data Systems
     Corporation and several other companies with which Mr. Durham was involved
     prior to his founding QuadraMed, and his performance as founder and chief
     executive officer of QuadraMed;
 
          (iii) the reports and opinions of Medicus' management, its legal
     counsel and its independent auditors, including the result of their due
     diligence investigations concerning the business, operations and financial
     condition of QuadraMed;
 
          (iv) the effect on stockholder value of Medicus continuing as an
     independent entity compared to the effect of a combination with QuadraMed,
     in light of the financial condition and prospects of Medicus and the
     current economic and industry environment, including, but not limited to,
     (A) other possible strategic alternatives for Medicus which the Medicus
     Board of Directors had examined, including continuing to execute its
     business plan on a stand-alone basis, and (B) the potential for increased
     value in the combined QuadraMed/Medicus enterprise;
 
          (v) recent and current market prices of the QuadraMed Common Stock;
 
          (vi) the terms and conditions of the Merger Agreement and the related
     documents, which were the product of extensive arms-length negotiations;
 
   
          (vii) the historical stockholders' equity per share of Medicus Common
     Stock of $1.39 at September 30, 1997, the current and historical market
     prices of Medicus Common Stock as set forth under "SUMMARY -- COMPARATIVE
     PER SHARE PRICES -- Medicus Market Price Data" and "-- Recent Closing
     Prices" and the premium represented by the Exchange Ratio of (a)
     approximately 36% over the Medicus Common Stock closing sales price on
     November 7, 1997, the last trading day prior to the meeting of the Medicus
     Board of Directors at which the Merger Agreement was approved, (b)
     approximately 37% over the price one week before November 7, 1997, and (c)
     approximately 13% over the price four weeks before November 7, 1997;
    
 
          (viii) the compatibility of the respective business philosophies of
     QuadraMed and Medicus;
 
   
          (ix) the price per share of $5.944 paid by Medicus for the Medicus
     Common Stock purchased by Medicus from Richard Jelinek in March 1997;
    
 
   
          (x) the fact that, despite the efforts of management discussed above,
     no firm offers with respect to a merger, sale of assets, or similar
     transaction were received from any parties other than QuadraMed;
    
 
   
          (xi) the opportunity for Medicus stockholders to participate, as
     holders of QuadraMed Common Stock, in a larger, more diversified company
     (subject to the QuadraMed Cash Election described below); and
    
 
   
          (xii) Medicus' future prospects for executing its business strategy
     and the likelihood that such prospects would be enhanced upon consummation
     of the Merger in light of the enhanced competition from software suppliers
     to the health care industry.
    
 
                                       33
<PAGE>   42
 
   
     The Medicus Board also considered a variety of potentially negative factors
in its deliberations concerning the Merger. In particular, the Medicus Board
considered the following material negative factors:
    
 
   
          (i) the risk that Medicus will not achieve the synergies and cost
     savings anticipated to be achieved in the Merger, including a reduction in
     expenses resulting from the combined purchasing power of the two companies;
    
 
   
          (ii) the risk that the operations of the two companies would not be
     successfully integrated;
    
 
   
          (iii) the risk that key technical and management personnel might be
     lost prior to or after consummation of the Merger and the potential to
     mitigate this risk by negotiating the conversion of Medicus options into
     QuadraMed options;
    
 
   
          (iv) the adverse effects on Medicus' business, operations and
     financial condition should it not be possible to consummate the Merger
     following public announcement that the Merger Agreement had been entered
     into; and
    
 
   
          (v) the possibility that QuadraMed might exercise the QuadraMed Cash
     Election, limiting or eliminating the ability of Medicus stockholders to
     receive QuadraMed Common Stock, which the Medicus Board did not feel was a
     significant negative factor because QuadraMed was only likely to exercise
     such election in circumstances where Medicus stockholders would be less
     likely to wish to receive QuadraMed Common Stock;
    
 
   
          (vi) the fact that the Merger Agreement does not require separate
     approval by stockholders other than QuadraMed, which the Medicus Board felt
     was acceptable given the election available to stockholders with respect to
     the Merger Consideration, the fact that stockholders would have dissenters'
     rights, and the fact that QuadraMed had indicated it would not proceed with
     the Merger without the greatest assurance possible that the Merger would be
     consummated; and
    
 
   
          (vii) other risks associated with QuadraMed and Medicus' businesses,
     including those described above under "RISK FACTORS."
    
 
   
     The Medicus Board did not request or receive going concern or liquidation
valuations of Medicus.
    
 
   
     The foregoing discussion of the information and factors considered by the
Medicus Board of Directors is not intended to be exhaustive but includes all
material factors, positive and negative, considered by the Medicus Board of
Directors. In view of the variety of factors considered in connection with its
evaluation of the Merger, the Medicus Board of Directors did not find it
practicable to and did not quantify or otherwise assign relative weights to the
specific factors considered in reaching its determination. In addition,
individual members of the Medicus Board of Directors may have given different
weights to different factors. In the course of its deliberations, the Medicus
Board of Directors did not establish a range of value for Medicus; however,
based on the factors outlined above, taken as a whole, the Medicus Board of
Directors determined that the Merger is advisable and fair and in the best
interests of Medicus and its stockholders, including its non-affiliated
stockholders.
    
 
     THE MEDICUS BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE HOLDERS OF
MEDICUS COMMON STOCK VOTE FOR APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.
 
OPINION OF MEDICUS' FINANCIAL ADVISOR
 
     Medicus retained Volpe Brown Whelan & Company, LLC ("VBW&Co.") to render an
opinion to the Medicus Board of Directors as to the fairness, from a financial
point of view, to the stockholders of Medicus, other than QuadraMed, of the
consideration to be received by such stockholders in the Merger. On December 30,
1997, VBW&Co. rendered its opinion to Medicus' Board of Directors to the effect
that, as of such date and based on and subject to the matters stated in the
opinion, the Merger Consideration is fair, from a financial point of view, to
the stockholders of Medicus, other than QuadraMed.
 
                                       34
<PAGE>   43
 
     THE FULL TEXT OF VBW&CO.'S WRITTEN OPINION DATED DECEMBER 30, 1997 WHICH
SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED, AND LIMITATIONS ON THE
REVIEW UNDERTAKEN, IS ATTACHED TO THIS PROXY STATEMENT/ PROSPECTUS AS ANNEX B
AND IS INCORPORATED HEREIN BY REFERENCE. THIS SUMMARY IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO THE FULL TEXT OF SUCH OPINION. HOLDERS OF MEDICUS
COMMON STOCK ARE URGED TO, AND SHOULD, READ THIS OPINION CAREFULLY IN ITS
ENTIRETY. THE ENGAGEMENT OF VBW&CO. AND ITS OPINION ARE FOR THE BENEFIT OF THE
MEDICUS BOARD. VBW&CO.'S OPINION ADDRESSES ONLY THE FAIRNESS OF THE MERGER
CONSIDERATION FROM A FINANCIAL POINT OF VIEW TO THE STOCKHOLDERS OF MEDICUS,
OTHER THAN QUADRAMED, AND IT DOES NOT ADDRESS ANY OTHER ASPECT OF THE MERGER NOR
DOES IT CONSTITUTE A RECOMMENDATION TO ANY HOLDER OF MEDICUS COMMON STOCK AS TO
HOW TO VOTE WITH RESPECT TO THE MERGER.
 
   
     In arriving at its opinion, VBW&Co.: (i) reviewed the Merger Agreement;
(ii) discussed the proposed terms of QuadraMed's prospective acquisition of
Resource Health Partners, L.P. ("RHP") with QuadraMed management; (iii)
interviewed management of Medicus and QuadraMed concerning the business
prospects, financial outlook and operating plans of each company individually
and combined; (iv) reviewed certain historical Medicus and QuadraMed, and
certain projected Medicus and QuadraMed (including RHP) financial statements and
other relevant financial and operating data of Medicus and QuadraMed prepared by
the respective company management teams; (v) reviewed the historical stock
trading patterns of both QuadraMed and Medicus and analyzed implied historical
exchange ratios as well as the premium of the Merger Consideration in relation
to historical Medicus stock trading ranges; (vi) reviewed the valuation of
selected publicly-traded companies VBW&Co. deemed comparable and relevant to the
Merger; (vii) reviewed, to the extent publicly available, the financial terms of
selected merger and acquisition transactions VBW&Co. deemed comparable and
relevant to the Merger; (viii) reviewed the relative contribution each of
Medicus and QuadraMed would make to the combined company in terms of financial
results and compared the implied values resulting from this analysis with the
Merger Consideration; (ix) performed a discounted cash flow analysis of Medicus
as a stand-alone entity based upon financial projections of Medicus management;
(x) performed a pro forma financial impact analysis of the combined entity,
based upon financial projections provided by Medicus and QuadraMed; and (xi)
performed other such studies, analyses and inquiries and considered other such
information as VBW&Co. deemed relevant.
    
 
     In rendering its opinion, VBW&Co. relied without independent verification
upon the accuracy and completeness of all of the financial, accounting, legal,
tax, operating and other information provided to VBW&Co. by Medicus and
QuadraMed and relied upon the assurances of Medicus and QuadraMed that all such
information provided by them, respectively, was complete and accurate in all
material respects and that there was no additional material information known to
any of them that would make any of the information made available to VBW&Co.
either incomplete or misleading. Medicus also retained outside legal, accounting
and tax advisors to advise on matters relating to the Merger. Accordingly,
VBW&Co. relied on their advice and expresses no opinion on such matters. With
respect to the projected financial data of Medicus and QuadraMed (including
RHP), all of which was provided by the management of Medicus or QuadraMed, as
well as the combined business plan, VBW&Co. has relied upon assurances of each
company that such data was prepared in good faith on a reasonable basis
reflecting the best currently available estimates and judgments of Medicus and
QuadraMed managements as to the future financial performance of each company
separately and as a combined company. VBW&Co. has not made any independent
appraisals or valuations of any assets of Medicus or QuadraMed, nor has VBW&Co.
been furnished with any such appraisals or valuations. In addition, VBW&Co.
assumed that the Merger would be accounted for as a purchase for financial
reporting purposes and the Merger Consideration would be taxable to Medicus
stockholders when received. VBW&Co.'s opinion is necessarily based on economic,
market and other conditions as in effect on, and the information made available
to VBW&Co. as of, the date it rendered its opinion.
 
     The following is a brief summary of the material analyses performed by
VBW&Co. in rendering its opinion to the Board of Directors of Medicus. The pro
forma financial impact analysis and contribution analysis include the expected
results of RHP, based on information provided by QuadraMed.
 
     Stock Trading and Exchange Ratio Analysis. VBW&Co. analyzed the stock
trading patterns of both Medicus and QuadraMed over various periods of time and
compared them historically to one another. From January 1, 1996 to November 7,
1997 (the last trading day prior to the announcement of the Merger),
                                       35
<PAGE>   44
 
   
Medicus stock ranged from $10.19 per share on February 16, 1996 (prior to the
spin-off on March 1, 1996 of Managed Care Solutions, Inc.) to $4.00 per share on
August 7, 1997, August 8, 1997 and October 28, 1997 with a mean daily closing
price of $6.00 per share. The last time the stock price exceeded the level of
the Merger Consideration was during the week of March 8, 1996. On a volume
basis, 82.5% of Medicus' trades from January 1, 1996 to November 7, 1997 were
below $7.50 per share and 99.8% of trades from January 1, 1997 to November 7,
1997 were below $7.50 per share. The exchange ratio implied from dividing
historical Medicus stock prices by QuadraMed stock prices generally was in
excess of the Exchange Ratio prior to August 1, 1997 and was below the Exchange
Ratio thereafter. The implied exchange ratio ranged from 0.1984 -- 0.8704 with a
mean of 0.4868 since QuadraMed's IPO. VBW&Co. noted that the implied exchange
ratio was 0.2292 and 0.2659 one day and one month, respectively, prior to the
date of announcement. VBW&Co. placed greater weight on the more recent implied
exchange ratios one day and one month prior to the date of announcement and,
accordingly, this analysis tended to support the conclusion that the Merger
Consideration was fair from a financial point of view.
    
 
     Premium Analysis. VBW&Co. analyzed the premiums paid in eight Healthcare
Information Services ("HCIS") transactions ("HCIS Premium Panel") deemed
comparable by VBW&Co. and in merger and acquisition transactions generally and
compared them to the premium represented by the Merger Consideration. The Merger
Consideration represents a premium of 36.4% and 30.4% compared to Medicus' stock
price one day and one month prior to the date of announcement, respectively.
 
   
     For the HCIS Premium Panel, one day premiums ranged from 5.5% to 53.3% with
a median of 17.1% and one month premiums ranged from 10.5% to 110.0% with a
median of 36.8%. These values would imply stock prices based on one day premiums
ranging from $5.80 to $8.43 with a median of $6.44 and stock prices based on one
month premiums ranging from $6.35 to $12.08 with a median of $7.87. For M&A
transactions announced from January 1, 1997 through December 5, 1997 involving
less than $200 million in consideration and with premiums ranging from 0.0% to
131.0%, one day premiums ranged from 0.5% to 108.7% with a median of 22.3% and
one month premiums ranged from 0.9% to 130.9% with a median of 31.2%. These
values would imply stock prices based on one day premiums ranging from $5.53 to
$11.48 with a median of $6.73 and stock prices based on one month premiums
ranging from $5.80 to $13.28 with a median of $7.54. The Merger Consideration is
within the range of values and near the median in this analysis, and,
accordingly this analysis tended to support the conclusion that the Merger
Consideration was fair from a financial point of view.
    
 
     Comparable Publicly-Traded Company Analysis. VBW&Co. compared certain
financial information of Medicus with that of two groups of publicly-traded
companies selected by VBW&Co. The first group (the "HCIS Panel") were selected
by VBW&Co. based on whether or not each company generated most of its revenues
and earnings from HCIS related businesses. A subset of the first group was also
selected by VBW&Co. composed of those companies that, in the view of VBW&Co.,
are most directly comparable to Medicus (the "Most Comparable Panel"). These
companies include APACHE Medical Systems, Inc., HCIA Inc., MECON, Inc.,
Medirisk, Inc., QuadraMed Corporation, Summit Medical Systems, Inc. and
Transition Systems, Inc. VBW&Co. selected these companies based on similarity of
product lines and on general similarity in size in terms of revenues and
earnings as compared to Medicus.
 
     The HCIS Panel financial information reviewed included stock price in
relation to forecasted calendar year ("FCY") 1998 earnings per share ("EPS") and
book value of stockholders' equity as well as enterprise value (defined as
market capitalization plus funded debt less cash) in relation to last 12 months
("L12M") revenue. FCY 1997 EPS and FCY 1998 EPS for the HCIS Panel were based on
published estimates by research organizations, including those of VBW&Co. Due to
Medicus' losses in the L12M period and FCY 1997, multiples of L12M EBITDA, EBIT,
and net income as well as FCY 1997 net income were not meaningful. VBW&Co. noted
that, based on closing stock prices and earnings estimates as of December 26,
1997, the HCIS Panel traded in a range of 10.7 to 48.3 times FCY 1998 earnings
(with a median of 25.8 times) and 0.4 to 11.3 times book value (with a median of
2.8 times). The enterprise value of the HCIS Panel implied from the stock prices
provided a range of 0.2 to 11.8 times L12M revenues (with a median of 2.5
times). The implied range of stock prices for Medicus based on the HCIS Panel's
stock prices in relation to FCY 1998 EPS was $1.94 to $8.76 (with a median of
$4.67) and $0.74 to $18.58 (with a median of $4.56) in relation to book value.
The implied range of stock prices for Medicus based on the enterprise value of
the HCIS Panel implied from the stock prices was $0.21 to $39.73
                                       36
<PAGE>   45
 
   
(with a median of $8.34) in relation to L12M revenues. The Merger Consideration
is within the range of values and near the median in this analysis and,
accordingly, this analysis tended to support the conclusion that the Merger
Consideration was fair from a financial point of view.
    
 
   
     The Most Comparable Panel financial information reviewed included stock
price in relation to FCY 1998 EPS and book value of stockholders' equity as well
as enterprise value in relation to L12M revenue. VBW&Co. noted that, based on
closing stock prices and earnings estimates as of December 26, 1997, the Most
Comparable Panel traded in a range of 14.4 to 34.6 times FCY 1998 earnings (with
a median of 28.0 times) and 0.4 to 5.7 times book value (with a median of 2.8
times). The enterprise value of the Most Comparable Panel implied from the stock
prices provided a range of 0.2 to 7.4 times L12M revenues (with a median of 2.3
times). The implied range of stock prices for Medicus based on the Most
Comparable Panel's stock prices in relation to FCY 1998 EPS was $2.60 to $6.28
(with a median of $5.08) and $0.74 to $9.33 (with a median of $4.54) in relation
to book value. The implied range of stock prices for Medicus based on the
enterprise value of the Most Comparable Panel implied from the stock prices was
$0.21 to $25.03 (with a median of $7.48) in relation to L12M revenues. VBW&Co.
placed more weight on valuation results based on FCY 1998 earnings than those
based on revenue and book value since it was the only available valuation
statistic based on profitability. The Merger Consideration is above the range of
values based on FCY 1998 earnings and the Merger Consideration is within the
range of values and above the median based on revenue and book value.
Accordingly, this analysis tended to support the conclusion that the Merger
Consideration was fair from a financial point of view.
    
 
     Comparable Merger and Acquisition Transactions. VBW&Co. has prepared a
valuation of Medicus based upon 15 merger and acquisition transactions of target
companies participating in the HCIS industry ("HCIS Transaction Panel"). In
selecting the HCIS Transaction Panel, VBW&Co. considered whether or not the
target company generated most of its revenues and earnings from HCIS-related
businesses. VBW&Co. also prepared a valuation of Medicus based upon four merger
and acquisition transactions of target companies that, in the view of VBW&Co.,
are most directly comparable to Medicus ("Most Comparable HCIS Transaction
Panel"). The Most Comparable HCIS Transaction Panel includes HBO & Company's
acquisition of GMIS Inc., HBO & Company's acquisition of HPR Inc., Cardinal
Health, Inc.'s acquisition of MediQual Systems, Inc., and National Data
Corporation's pending acquisition of Source Informatics Inc. VBW&Co. selected
these companies based on the similarity of their product lines and on the
similarity in size in terms of revenues and earnings as compared to Medicus.
 
     VBW&Co. reviewed the HCIS Transaction Panel's financial terms, to the
extent publicly available. The enterprise value of these transactions ranged
from 2.0 to 10.6 times L12M revenue (with a median of 4.2 times) and 1.1 to 6.8
times next 12 months forecasted ("N12M") revenue (with a median of 3.0 times).
The transaction value of these transactions ranged from 2.5 to 9.5 times book
value (with a median of 5.2 times), and 11.0 to 41.5 times N12M net income (with
a median of 33.7 times). Due to Medicus' operating losses in L12M EBITDA, EBIT,
and net income, multiples of L12M EBITDA, EBIT, and net income were not
meaningful. The implied range of stock prices for Medicus based on HCIS
Transaction Panel's enterprise value in relation to L12M revenue was $6.52 to
$35.91 (with a median of $13.85) and $4.71 to $29.51 (with a median of $13.14)
in relation to N12M revenue. The implied range of stock prices for Medicus based
on HCIS Transaction Panel's transaction value in relation to book value was
$4.13 to $15.60 (with a median of $8.55) and $1.99 to $7.52 (with a median of
$6.11) in relation to N12M net income.
 
     VBW&Co. also reviewed the Most Comparable HCIS Transaction Panel's
financial terms, to the extent publicly available. The enterprise value of these
transactions ranged from 2.4 to 8.6 times L12M revenue (with a median of 6.0
times) and 1.1 to 6.8 times N12M revenue (with a median of 3.4 times). The
transaction value of these transactions ranged from 4.0 to 9.5 times book value
(with a median of 6.7 times), and 11.0 to 41.5 times N12M net income (with a
median of 34.1 times). The implied range of stock prices for Medicus based on
the Most Comparable HCIS Transaction Panel's enterprise value in relation to
L12M revenue was $8.03 to $29.16 (with a median of $20.30) and $4.71 to $29.51
(with a median of $14.86) in relation to N12M revenue. The implied range of
stock prices for Medicus based on the Most Comparable HCIS Transaction Panel's
transaction value in relation to book value was $6.54 to $15.60 (with a median
of $11.07) and $1.99 to $7.52 (with a median of $6.18) in relation to N12M net
income. VBW&Co. placed more weight on valuation results based on N12M net income
than those based on revenue and book value since it was the only available
                                       37
<PAGE>   46
 
   
valuation statistic based on profitability. The Merger Consideration is within
the range of values and above the median based on NI2M net income, and
accordingly, this analysis tended to support the conclusion that the Merger
Consideration was fair from a financial point of view.
    
 
   
     Contribution Analysis. VBW&Co. reviewed certain historical and forecasted
financial information (including revenue, gross profit, EBITDA, EBIT, net income
and book value) for Medicus and QuadraMed (including RHP) and the pro forma
combined entity resulting from the Merger. VBW&Co. adjusted the relative
contributions of revenue, gross profit, EBITDA and EBIT to reflect the
differences in capital structures of the two companies. VBW&Co. analyzed the
relative contributions of Medicus and QuadraMed (including RHP) based on
historical financial performance for L12M and forecasted financial performance
for 1997 through 2000 provided by the management teams of Medicus and QuadraMed
(including RHP). Based on the foregoing analysis, VBW&Co. concluded that Medicus
would be contributing the following percentages of revenue (26.3% in L12M, 23.2%
in FCY 1997 and 21.0% in FCY 1998), gross profit (28.6% in L12M, 25.5% in FCY
1997 and 24.5% in FCY 1998), EBITDA (-0.7% in L12M, -0.7% in FCY 1997 and 13.5%
in FCY 1998), EBIT (-0.7% in L12M, -0.7% in FCY 1997 and 9.3% in FCY 1998), net
income (0% in L12M, 0% in FCY 1997 and 9.8% in FCY 1998) and book value (8.4% in
L12M, 8.3% in FCY 1997 and 8.4% in FCY 1998). VBW&Co. determined that the
preceding ratios implied the following stock prices for Medicus: L12M revenue:
$16.09; FCY 1997 revenue: $13.61; FCY 1998 revenue: $12.01; L12M gross profit:
$18.07; FCY 1997 gross profit: $15.46; FCY 1998 gross profit: $14.63; L12M
EBITDA: not meaningful; FCY 1997 EBITDA: not meaningful; FCY 1998 EBITDA: $7.02;
L12M EBIT: not meaningful; FCY 1997 EBIT: not meaningful; FCY 1998 EBIT: $4.63;
L12M net income: not meaningful; FCY 1997 net income: not meaningful; FCY 1998
net income: $4.88; L12M book value: $4.14; FCY 1997 book value: $4.07; FCY 1998
book value: $4.14. The Merger Consideration is within the range of values in
this analysis, and, accordingly, this analysis tended to support the conclusion
that the Merger Consideration was fair from a financial point of view.
    
 
   
     Discounted Cash Flow Analysis. VBW&Co. performed a discounted cash flow
analysis of Medicus based on certain financial projections provided by the
management team of Medicus for the periods 1997 through 2002. Unlevered free
cash flows were calculated as net income available to common stockholders plus
the sum of depreciation, amortization and other non-cash charges minus capital
expenditures and plus or minus changes in working capital and minus tax adjusted
interest expense. VBW&Co. calculated terminal values by applying exit multiples
on 2002 net income; and the cash flow streams and terminal values were then
discounted to the present using a range of discount rates deemed appropriate by
VBW&Co. Based on this analysis, VBW&Co. calculated stock prices of Medicus
ranging from $9.92 to $21.94. The Merger Consideration is below the range of
values in this analysis. However, VBW&Co. did not rely heavily on this analysis
because it is based on Medicus' management's financial projections that are
dependent on a significant operational turnaround.
    
 
     Pro Forma Financial Impact Analysis. VBW&Co. analyzed the pro forma impact
of the Merger on QuadraMed's earnings per share for the calendar years 1998
through 2002. The analysis was performed utilizing stand-alone operating
estimates and estimates of transaction-related costs and projected cost savings
resulting from the Merger provided by the management teams of QuadraMed and
Medicus. VBW&Co. expresses no opinion as to whether these projections and
estimates would actually be obtained. VBW&Co. noted that based on management
projections, the Merger would be accretive to QuadraMed's 1998 earnings and
significantly accretive to QuadraMed's 1999 and beyond earnings. The analysis
assumed that the RHP acquisition was completed prior to the Merger.
 
     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to a partial analysis or summary description. In
arriving at its opinion, VBW&Co. considered the results of all of its analyses
as a whole and did not attribute any particular weight to any analysis or factor
considered by it. Furthermore, selecting any portion of the analysis, without
considering all of the analyses, would create an incomplete view of the process
underlying its opinion. In addition, VBW&Co. may have given various analyses and
factors more or less weight than other analyses and factors, and may have deemed
various assumptions more or less probable than other assumptions, so that the
ranges of valuations resulting from any particular analysis described above
should not be taken to be VBW&Co.'s view of the actual value of Medicus.
                                       38
<PAGE>   47
 
     The analyses performed by VBW&Co. are not necessarily indicative of actual
value, which may be significantly more or less favorable than the value
suggested by such analyses. Such analyses were prepared solely as part of
VBW&Co.'s analysis of the fairness of the Merger Consideration from a financial
point of view to the stockholders of Medicus other than QuadraMed. The analyses
do not purport to be appraisals or to reflect the prices at which Medicus might
actually be sold. Because such estimates are inherently subject to uncertainty,
none of Medicus, QuadraMed, VBW&Co. nor any other person assumes responsibility
for their accuracy. Consequently, the VBW&Co. analyses described herein should
not be viewed as determinative of the opinion of the Medicus Board of Directors
with respect to the value of Medicus or of whether the QuadraMed Board of
Directors or the Medicus Board of Directors would have been willing to agree to
a different level of consideration.
 
     VBW&Co. is a nationally recognized investment banking firm and was selected
by Medicus based on VBW&Co.'s experience and expertise. VBW&Co., as a customary
part of its investment banking business, engages in the valuation of businesses
and their securities in connection with mergers and acquisitions, negotiated
underwritings, secondary distributions of securities, private placements and
valuations for corporate and other purposes. In the ordinary course of its
business, VBW&Co. and its affiliates may actively trade the equity securities of
QuadraMed or Medicus for its and their own account and for the accounts of
customers and, accordingly, may at any time hold a long or short position in
such securities.
 
   
     VBW&Co. has been engaged by QuadraMed to provide investment banking and
financial advisory services to QuadraMed unrelated to the Medicus transaction.
To date no fees have been paid, or have been agreed to be paid, to VBW&Co. by
QuadraMed. VBW&Co. has also been retained by RHP to provide financial advice and
a fairness opinion to RHP with respect to the acquisition of RHP by QuadraMed
and will receive a fee of $860,000 for rendering such services to RHP.
    
 
   
     VBW&Co. will receive a retainer in the amount of $50,000 and a fee in the
amount of $200,000 for rendering its opinion to Medicus, no portion of which is
conditioned upon the opinion being favorable. In addition, Medicus has agreed to
reimburse VBW&Co. for its out-of-pocket costs and expenses and to indemnify
VBW&Co. and its affiliates against certain liabilities and expenses.
    
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     In considering the recommendation of the Board of Directors of Medicus with
respect to the Merger, holders of Medicus Common Stock should be aware that
certain members of Medicus' management, some of whom are members of the Medicus
Board of Directors, and the members of the Medicus Board of Directors have
certain interests in the Merger, in addition to those of Medicus' stockholders
generally. The Board of Directors of Medicus was aware of these interests when
it considered and approved the Merger and the Merger Agreement.
 
   
     At the November 9, 1997 meeting at which the Merger was approved, the
Medicus Board also approved the payment to Patrick C. Sommers, the former
President and Chief Executive Officer of Medicus, of a bonus in the amount of
$750,000 in satisfaction of Medicus' obligation under Mr. Sommers' employment
agreement to make certain payments in the event of a change in control of
Medicus. The immediate vesting of all stock options held by Mr. Sommers was
approved as well, with such options to be exercisable for a period of three
years after termination of Mr. Sommers' employment. Mr. Sommers, whose
employment terminated on February 28, 1998, will also receive a lump-sum
severance payment in the amount of $250,000. Additionally, Mr. Sommers will
continue to receive medical benefits, at QuadraMed's expense, for a period of
one year following his termination.
    
 
     Concurrent with the execution of the Merger Agreement, certain stockholders
of Medicus, including Richard C. Jelinek, William G. Brown, Jon E.M. Jacoby,
Gail L. Warden and Dorsey R. Gardner, each of whom are directors of Medicus,
sold their shares of Medicus Common Stock to QuadraMed pursuant to stock
purchase agreements dated November 9, 1997. The consideration paid by QuadraMed
for such shares was $7.50 per share in cash plus a warrant to purchase 0.3125
shares of QuadraMed Common Stock for each share of Medicus Common Stock sold at
a price of $24.00 per share (the closing price of the QuadraMed Common Stock on
the last trading day prior to the execution of the stock purchase agreements),
subject to certain
                                       39
<PAGE>   48
 
adjustments. The Warrants are exercisable only at the Effective Time of the
Merger. See "THE STOCK PURCHASE AGREEMENTS AND WARRANTS."
 
   
     Pursuant to the Merger Agreement, the obligations under the Medicus Stock
Option Plans and the TriHealth Warrant will be assumed by QuadraMed and shall
continue to have, and be subject to, the same terms and conditions set forth
therein, except that (i) each of the assumed options and warrants will be
exercisable for that number of whole shares of QuadraMed Common Stock equal to
the product of the number of shares of Medicus Common Stock that were issuable
upon exercise of such option or warrant immediately prior to the Effective Time
multiplied by 0.3565 and rounded down to the nearest whole number of shares of
QuadraMed Common Stock, (ii) the Director Options will be fully vested (with
respect to each of the Medicus Directors in the following amounts: Patrick C.
Sommers -- 428,000, William G. Brown -- 20,000, Jon E.M. Jacoby -- 80,000, John
P. Kunz -- 35,000, Richard C. Jelinek -- 20,000, Risa Lavizzo-Mourey -- 50,000,
Gail L. Warden -- 20,000, Dorsey R. Gardner -- 30,000) and shall remain
exercisable for a period of three years following the Effective Time (or the
date of termination of employment in the case of Mr. Sommers), and (iii) the per
share exercise price for the shares of QuadraMed Common Stock issuable upon
exercise of such assumed option or warrant will be equal to the quotient
determined by dividing the exercise price per share of Medicus Common Stock at
which such option or warrant was exercisable immediately prior to the Effective
Time by 0.3565, rounded up to the nearest whole cent. See "THE MERGER
AGREEMENT -- Effect on Employee Benefit Plans" and "THE MERGER -- Treatment of
Stock Options and Outstanding Warrants."
    
 
   
     Thomas F. McNulty, a director of QuadraMed, holds options to purchase
50,000 shares of Medicus Common Stock which will be assumed by QuadraMed in the
Merger. These options will be converted into options to purchase 17,825 shares
of QuadraMed Common Stock on the same terms as other outstanding Medicus
options.
    
 
     At the Effective Time of the Merger, QuadraMed will purchase and cancel the
Jelinek Warrants in exchange for shares of QuadraMed Common Stock with an
aggregate value of $1.12 million. The number of shares of QuadraMed Common Stock
issuable in exchange for the Jelinek Warrants will be determined by dividing
$1.12 million by the QuadraMed Stock Value as defined in the Merger Agreement.
If at the Effective Time of the Merger, the QuadraMed Stock Value exceeds
$27.60, then the number of shares of QuadraMed Common Stock issuable upon
cancellation of the Jelinek Warrants shall be equal to $1.12 million divided by
$27.60. If at the Effective Time of the Merger, the QuadraMed Stock Value is
less than $20.40, then the number of shares of QuadraMed Common Stock issuable
upon cancellation of the Jelinek Warrants shall be equal to $1.12 million
divided by $20.40.
 
     After the Effective Time, QuadraMed will indemnify and hold harmless the
present and former officers, directors, employees and agents of Medicus in
respect of acts or omissions occurring on or prior to the Effective Time to the
extent permitted by law and to the extent provided under Medicus' Amended and
Restated Certificate of Incorporation and Bylaws or any indemnification
agreement with Medicus' officers and directors to which Medicus is a party. For
two years after the Effective Time, QuadraMed will use its best efforts to
provide officers' and directors' liability insurance in respect of acts or
omissions occurring on or prior to the Effective Time covering each such person
currently covered by Medicus' officers' and directors' liability insurance
policy on terms substantially similar to those of such policy in effect on the
date of the Merger Agreement. QuadraMed shall not be obligated to pay premiums
in excess of 150% of the amount per annum Medicus paid in its last full fiscal
year, and if the insurance required by the Merger Agreement cannot be obtained,
QuadraMed shall obtain as much comparable insurance as possible for an annual
premium equal to such maximum amount. See "THE MERGER
AGREEMENT -- Indemnification."
 
APPROVAL OF THE BOARD OF DIRECTORS OF QUADRAMED; REASONS FOR THE MERGER
 
   
     At its November 9, 1997 meeting, the QuadraMed Board of Directors
determined that the Merger, upon the terms and conditions set forth in the
Merger Agreement, is fair to the holders of Medicus Common Stock (including
non-affiliated holders) and QuadraMed Common Stock. Mr. Kenneth E. Jones, who
was travelling in the Middle East, did not participate in the meeting and Mr.
Thomas F. McNulty abstained from voting
    
 
                                       40
<PAGE>   49
 
because he holds options to purchase Medicus Common Stock. See "-- Interests of
Certain Persons in the Merger." The remaining QuadraMed directors have
unanimously adopted the Merger Agreement and the transactions contemplated
thereby, including the Merger. See "-- Background of the Merger."
 
     QuadraMed has identified what it believes are strategic and financial
benefits that the Merger would provide to each company and the stockholders,
employees and customers of each company. QuadraMed believes there exists a high
level of technical and functional compatibility between the products and
services offered by the companies, particularly in the areas of decision support
and clinical data systems. Medicus' products are PC-based and most are compliant
with the Windows(TM) operating environment, as are the systems offered by
QuadraMed. In addition, QuadraMed believes that the data captured by Medicus'
systems, when combined with that collected by QuadraMed's systems, is of
potential value and will enable QuadraMed to enhance the quality of data-based
products currently marketed by the two companies. Furthermore, access to an
increased number of customers who own only one or two of the products offered in
the combined companies' suite of products and services, represents a
cross-selling opportunity. QuadraMed also perceives the reputation of Medicus in
the marketplace as being widely known and well-regarded which may further
enhance QuadraMed's own reputation. QuadraMed generally believes the management
and employees of Medicus to be experienced and skilled in health care
information systems and, when combined with the management and resources of
QuadraMed, may result in a management team that is better able to create
stockholder value. Additionally, the management of the two companies believe
certain economies of scale, cost savings and operational leverage may be
achieved by reducing certain duplicative administrative functions.
 
   
     In reaching its determination, the QuadraMed Board consulted with
management, as well as its legal counsel, and considered a number of factors,
including the material factors enumerated below. In particular, the Quadramed
Board considered the following material positive factors:
    
 
          (i) the Board's knowledge of the business, operations, properties,
     assets, financial condition and operating results of QuadraMed;
 
          (ii) the reports and opinions of QuadraMed's management, its legal
     counsel and its independent auditors, including the result of their due
     diligence investigations concerning the business, operations and financial
     condition of Medicus;
 
          (iii) the effect on stockholder value of Medicus and QuadraMed
     continuing as independent entities compared to the effect of combining the
     two companies, in light of the financial condition and prospects of Medicus
     and the current economic and industry environment, including, but not
     limited to, the potential for increased value in the combined
     QuadraMed/Medicus enterprise;
 
          (iv) recent and current market prices of the QuadraMed Common Stock
     and the Medicus Common Stock;
 
          (v) the terms and conditions of the Merger Agreement and the related
     documents, which were the product of extensive arms-length negotiations;
 
          (vi) the premium represented by the Exchange Ratio over the price of
     the Medicus Common Stock;
 
          (vii) the compatibility of the respective business philosophies of
     QuadraMed and Medicus;
 
   
          (viii) the opportunity for Medicus stockholders to participate, as
     holders of QuadraMed Common Stock, in a larger, more diversified company;
     and
    
 
   
          (ix) QuadraMed's future prospects for executing its business strategy
     and the likelihood that such prospects would be enhanced as a result of the
     Merger in light of the enhanced competition in the health care information
     systems industry.
    
 
   
     The QuadraMed Board also considered a variety of potentially negative
factors in its deliberations concerning the Merger. In particular, the QuadraMed
Board considered the following material negative factors:
    
                                       41
<PAGE>   50
 
   
          (i) the risks that QuadraMed will not achieve the synergies and cost
     savings anticipated to be achieved in the Merger, including a reduction in
     expenses resulting from the combined purchasing power of the two companies;
    
 
   
          (ii) the risk that the operations of the two companies would not be
     successfully integrated;
    
 
   
          (iii) the risk that key technical and management personnel might be
     lost prior to or after consummation of the Merger and the potential to
     mitigate this risk by negotiating the conversion of Medicus options into
     QuadraMed options;
    
 
   
          (iv) the adverse effects on QuadraMed's and Medicus' businesses,
     operations and financial condition should it not be possible to consummate
     the Merger following public announcement that the Merger Agreement had been
     entered into; and
    
 
   
          (v) other risks associated with QuadraMed and Medicus' businesses,
     including those described above under "RISK FACTORS."
    
 
   
     The foregoing discussion of the information and factors considered by the
QuadraMed Board of Directors is not intended to be exhaustive but includes all
material factors, positive and negative, considered by the QuadraMed Board of
Directors. In view of the variety of factors considered in connection with its
evaluation of the Merger, the QuadraMed Board of Directors did not find it
practicable to and did not quantify or otherwise assign relative weights to the
specific factors considered in reaching its determination. In addition,
individual members of the QuadraMed Board of Directors may have given different
weights to different factors. In the course of its deliberations, the QuadraMed
Board of Directors did not establish a range of value for Medicus; however,
based on the factors outlined above, taken as a whole, the QuadraMed Board of
Directors determined that the Merger is advisable and fair and in the best
interests of QuadraMed, Medicus and their respective stockholders, including its
non-affiliated stockholders. However, the QuadraMed Board of Directors makes no
recommendation regarding the vote which will take place at the Special Meeting.
    
 
ANALYSIS OF QUADRAMED'S FINANCIAL ADVISOR
 
   
     In evaluating the proposed merger with Medicus, the QuadraMed Board of
Directors considered certain materials and analyses presented by Jefferies &
Company, Inc. ("Jefferies"), which acted as QuadraMed's financial advisor in
connection with the transaction. Jefferies was not instructed to, nor did it,
render an opinion as to the fairness of the transaction from a financial point
of view to the Board of Directors or stockholders of QuadraMed, and was not
engaged as an advisor to Medicus or its stockholders, which retained a separate
advisor. See "-- Opinion of Medicus' Financial Advisor." The analysis prepared
by Jefferies was limited to an accretion/dilution analysis at various possible
purchase prices and was based upon publicly-available information and
information provided by QuadraMed and Medicus. Had Jefferies been instructed to
deliver a fairness opinion or to advise Medicus or its stockholders, it might
have reviewed additional information and analyses which might have resulted in
materials and analyses that differed from that which was presented to
QuadraMed's Board of Directors. Furthermore, the materials and analyses
presented relied upon certain information which was provided to Jefferies by
QuadraMed and Medicus or was otherwise publicly available. Jefferies was not
asked to, and did not, independently verify the accuracy, completeness or fair
presentation of any financial or other information (including financial
projections, pro forma financial information and estimates), and assumed that
the information provided to it by QuadraMed and Medicus had been prepared on the
basis reasonably reflecting management's best currently available estimates and
good faith judgments as to the future performance of the respective companies
for all the periods specified therein. Jefferies was not asked to, and did not,
make an independent evaluation or appraisal or conduct a physical inspection of
any of the assets of QuadraMed or Medicus, nor was any such appraisal or
valuation made available to Jefferies.
    
 
     Jefferies, as part of its investment banking business, is regularly engaged
in the evaluation of capital structures, the evaluation of businesses and their
securities in connection with mergers and acquisitions, negotiated
underwritings, competitive bids, secondary distributions of listed and unlisted
securities, private placements, financial restructurings and other financial
services. Jefferies has provided investment banking
 
                                       42
<PAGE>   51
 
services to QuadraMed in the past for which it has received or expects to
receive customary investment banking fees and commissions, including acting as
managing underwriter in connection with QuadraMed's initial public offering in
October 1996 and follow-on equity offering in October 1997 and acting as
financial advisor in connection with QuadraMed's acquisition of Healthcare
Recovery, Inc. (d.b.a. Synergy HMC) in April 1997, the RHP Mergers in December
1997 and for this Merger. QuadraMed retained Jefferies as its advisor in
connection with the Medicus transaction due, in part, to Jefferies' experience
in investment banking and general familiarity with the health care information
systems industry and certain of its participants, including QuadraMed and
Medicus. In the ordinary course of its business, Jefferies and its affiliates
may actively trade the securities of QuadraMed or Medicus for their own account
and for the accounts of customers and, accordingly, may at any time hold a long
or short position in such securities.
 
     The materials and analysis provided to QuadraMed's Board of Directors
contained (i) a summary description of Medicus, which among other things
described certain product and technology information, marketing agreements,
historical corporate transactions (including the March 1996 distribution of
Medicus' managed care business, Medicus' share repurchase from Mr. Richard
Jelinek and Medicus' reorganizations which took place in each of the fiscal
years ended May 31, 1996 and 1997), summary operating data, certain share and
option ownership, price and trading volume characteristics of Medicus' common
stock, monthly trading volume of the leading market makers in Medicus' common
stock and biographies of certain officers and directors; (ii) an overview of the
consideration to be paid to Medicus shareholders and the anticipated accretive
or dilutive effects of the transaction relative to the projected stand alone
results of QuadraMed as estimated by the research department of Jefferies; (iii)
a transaction analysis which depicted the pro forma effects of the Merger on the
projected combined results of operations of the two companies; (iv) certain
publicly available disclosure documents, including Medicus' most recent proxy,
10-K and 10-Q; and (v) an analysis of recent mergers and acquisitions in the
health care information systems industry which included, among other items,
certain ratios of the consideration paid relative to various operating results
of the acquired companies.
 
     Jefferies' advisory services and the materials and analysis presented to
QuadraMed's Board of Directors were provided for the information and assistance
of QuadraMed's Board of Directors in connection with its consideration of the
Merger and do not constitute a recommendation as to whether any holder of
Medicus Common Stock should vote for or against approval and adoption of the
Merger Agreement.
 
   
     Jefferies will receive a fee in the amount of $675,750 in connection with
advisory services provided to QuadraMed in the Merger.
    
 
FEDERAL INCOME TAX CONSEQUENCES
 
     The receipt of the Merger Consideration for shares of Medicus Common Stock
will be a taxable transaction for U.S. federal income tax purposes and may be a
taxable transaction for foreign, state and local income tax purposes as well. A
Medicus stockholder will generally recognize gain or loss equal to the
difference between (i) the amount of cash, and, in the case of Medicus
stockholders receiving QuadraMed Common Stock, the fair market value of
QuadraMed Common Stock that the stockholder receives as a result of the Merger
and (ii) the stockholder's adjusted tax basis in the shares of Medicus Common
Stock that the stockholder exchanges in the Merger. Medicus will not recognize
any gain or loss as a result of the Merger for U.S. federal income tax purposes.
 
   
     THE FOREGOING IS NOT INTENDED TO BE A COMPREHENSIVE DISCUSSION OF ALL
POSSIBLE UNITED STATES FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER.
FURTHERMORE, THIS PROXY STATEMENT/PROSPECTUS DOES NOT PROVIDE INFORMATION
REGARDING THE TAX CONSEQUENCES OF THE MERGER UNDER THE TAX LAWS OF ANY STATE OR
OF ANY LOCAL OR FOREIGN JURISDICTION. MEDICUS STOCKHOLDERS ARE URGED TO CONSULT
THEIR OWN TAX ADVISORS WITH RESPECT TO SPECIFIC TAX CONSEQUENCES OF THE MERGER.
    
 
                                       43
<PAGE>   52
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for as a purchase for financial reporting
purposes in accordance with GAAP. This method will require the allocation of the
purchase price to the various assets acquired and liabilities assumed based on
the fair market values of those assets and liabilities.
 
   
     QuadraMed received a valuation of certain intangible assets which will be
acquired in the Merger which indicated that $38,500,000 of the intangible assets
to be acquired consist of in-process research and development. In the opinion of
management, the acquired in-process research and development had not yet reached
technological feasibility and had no alternative future use. Accordingly,
QuadraMed expects to record a non-recurring charge of $38,500,000 in its fourth
quarter ended December 31, 1997. The remaining intangible assets are expected to
be amortized over a five- to seven-year period.
    
 
CERTAIN LEGAL MATTERS
 
     No federal or state regulatory requirements or approvals (other than those
which arose in connection with the registration of QuadraMed Common Stock to be
issued in the Merger and the effectiveness of this Proxy Statement/Prospectus
and certain notice filings after the Effective Time) must be complied with or
obtained in connection with the Merger.
 
FEDERAL SECURITIES LAW CONSEQUENCES
 
     All QuadraMed Common Stock issued in connection with the Merger will be
freely transferable, except that any QuadraMed Common Stock received by persons
who are deemed to be "affiliates" (as such term is defined under the Securities
Act) of Medicus or QuadraMed prior to the Merger may be sold by them only in
transactions permitted by the resale provisions of Rule 145 under the Securities
Act with respect to affiliates of Medicus, or Rule 144 under the Securities Act
with respect to persons who are or become affiliates of QuadraMed, or as
otherwise permitted under the Securities Act. Persons who may be deemed to be
affiliates of Medicus or QuadraMed generally include individuals or entities
that control, are controlled by, or are under common control with, such party
and may include certain officers and directors of such party as well as
principal stockholders of such party.
 
     Affiliates of Medicus may not sell their shares of QuadraMed Common Stock
acquired in connection with the Merger, except pursuant to an effective
registration statement under the Securities Act covering such shares or in
compliance with Rule 145 (or Rule 144 under the Securities Act in the case of
persons who become affiliates of QuadraMed) or another applicable exemption from
the registration requirements of the Securities Act. In general, under Rule 145,
for one year following the Effective Time an affiliate (together with certain
related persons) would be entitled to sell shares of QuadraMed Common Stock
acquired in connection with the Merger only through unsolicited "brokers'
transactions" or in transactions directly with a "market maker," as such terms
are defined in Rule 144. Additionally, the number of shares to be sold by an
affiliate (together with certain related persons and certain persons acting in
concert with an affiliate) within any three-month period for purposes of Rule
145 may not exceed the greater of 1% of the outstanding shares of QuadraMed
Common Stock or the average weekly trading volume of such stock during the four
calendar weeks preceding such sale. Rule 145 would only remain available,
however, to such former Medicus affiliates if QuadraMed remained current with
its informational filings with the Commission under the Exchange Act. One year
after the Effective Time, a former affiliate of Medicus would be able to sell
such QuadraMed Common Stock without such manner of sale or volume limitations
provided that QuadraMed was current with its Exchange Act informational filings
and such affiliate was not then an affiliate of QuadraMed. Two years after the
Effective Time, a former affiliate of Medicus would be able to sell such shares
of QuadraMed Common Stock without any restrictions so long as such affiliate had
not been an affiliate of QuadraMed for at least three months prior thereto.
 
                                       44
<PAGE>   53
 
LISTING
 
     It is a condition to the obligations of QuadraMed and Medicus to consummate
the Merger that application shall have been made to the Nasdaq National Market
to list the shares of QuadraMed Common Stock to be issued in connection with the
Merger.
 
APPRAISAL RIGHTS
 
     Record holders of Medicus Common Stock are entitled to appraisal rights
under Section 262 ("Section 262") of the Delaware General Corporation Law (the
"DGCL"). The following discussion represents a summary of the material
provisions of Section 262, and is qualified in its entirety by reference to the
full text of Section 262, which is reprinted in its entirety as Annex C to this
Proxy Statement/Prospectus. A person having a beneficial interest in shares of
Medicus Common Stock held of record in the name of another person, such as a
broker or nominee, must act promptly to cause the record holder to follow the
steps summarized below properly and in a timely manner to perfect the appraisal
rights provided under Section 262.
 
   
     Under Section 262, where a merger is to be submitted for approval at a
meeting of stockholders, as in the case of the Special Meeting, not less than 20
days prior to the meeting, a constituent corporation must notify each of the
holders of its stock (who was a stockholder on the record date for such meeting)
for which appraisal rights are available that such appraisal rights are
available and include in each such notice a copy of Section 262. THIS PROXY
STATEMENT/PROSPECTUS SHALL CONSTITUTE SUCH NOTICE TO THE RECORD HOLDERS OF
MEDICUS COMMON STOCK THAT APPRAISAL RIGHTS ARE AVAILABLE. ANY SUCH STOCKHOLDER
WHO WISHES TO EXERCISE SUCH APPRAISAL RIGHTS SHOULD REVIEW THE FOLLOWING
DISCUSSION AND ANNEX C CAREFULLY, BECAUSE FAILURE TO TIMELY AND STRICTLY COMPLY
WITH THE PROCEDURES SPECIFIED MAY RESULT IN THE LOSS OF APPRAISAL RIGHTS UNDER
THE DGCL.
    
 
     Under the DGCL, a record holder of shares of Medicus Common Stock who makes
the demand described below with respect to such shares, who continuously is the
record holder of such shares through the Effective Time, who otherwise complies
with the statutory requirements set forth in Section 262 and who neither votes
in favor of approval of the Merger Agreement and the Merger nor consents thereto
in writing will be entitled to have his or her shares of Medicus Common Stock
appraised by the Delaware Court of Chancery and to receive payment of the "fair
value" of such shares as described below. Such holders are, in such
circumstances, entitled to appraisal rights because they hold stock of a
constituent corporation to the Merger and may be required by the Merger
Agreement to accept cash as a portion or all of the Merger Consideration. Since
holders of shares of Medicus Common Stock wishing to exercise appraisal rights
must not vote in favor of approval of the Merger Agreement and the Merger, such
holders should not deliver unmarked proxies (i.e., proxies without instructions)
to Medicus as such proxies will be voted FOR such approval. See "THE SPECIAL
MEETING -- Record Date; Voting Rights; Proxies."
 
   
     A holder of shares of Medicus Common Stock wishing to exercise his or her
appraisal rights must deliver to the Secretary of Medicus, before the vote on
the Merger Agreement at the Special Meeting, a written demand for appraisal of
his or her shares of Medicus Common Stock. Merely voting or delivering a proxy
directing a vote against approval of the Merger Agreement and the Merger will
not constitute a demand for appraisal. A written demand is essential. Such
written demand must reasonably inform Medicus of the identity of the holder and
that such holder intends thereby to demand appraisal of the holder's shares. All
written demands for appraisal of Medicus Common Stock should be sent or
delivered to QuadraMed Corporation, 80 E. Sir Francis Drake Blvd., Suite 2A,
Larkspur, California 94939, Attn: Keith M. Roberts, Esq. In addition, a holder
of shares of Medicus Common Stock wishing to exercise his or her appraisal
rights must hold such shares of record on the date the written demand for
appraisal is made and must hold such shares continuously through the Effective
Time. Stockholders who hold their shares of Medicus Common Stock in brokerage
accounts or other nominee forms and who wish to exercise appraisal rights must
take all necessary steps in order that a demand for appraisal is made by the
record holder of such shares and are urged to consult with their brokers to
determine the appropriate procedures for the making of a demand for appraisal by
the record holder.
    
 
                                       45
<PAGE>   54
 
   
     Within 10 days after the Effective Time, the Surviving Corporation (as
defined in "THE MERGER AGREEMENT -- The Merger") must send a notice as to the
effectiveness of the Merger to each holder of shares of Medicus Common Stock who
has satisfied the appropriate provisions of Section 262 and who is entitled to
appraisal rights under Section 262. Within 120 days after the Effective Time,
any holder of record of shares of Medicus Common Stock who has complied with the
requirements for exercise of appraisal rights will be entitled, upon written
request, to receive from the Surviving Corporation a statement setting forth (i)
the aggregate number of shares of Medicus Common Stock not voted in favor of the
Merger Agreement and with respect to which demands for appraisal have been
received and (ii) the aggregate number of holders of such shares. Any such
statement must be mailed within 10 days after a written request therefor has
been received by the Surviving Corporation.
    
 
     Within 120 days after the Effective Time, but not thereafter, the Surviving
Corporation or any holder of shares of Medicus Common Stock who has complied
with the foregoing procedures and who is entitled to appraisal rights under
Section 262 may file a petition in the Delaware Court of Chancery demanding a
determination of the "fair value" of such shares. The Surviving Corporation is
not under any obligation to file a petition with respect to the appraisal of the
"fair value" of the shares of Medicus Common Stock and neither QuadraMed nor
Medicus presently expects that the Surviving Corporation will file such a
petition. Accordingly, it is the obligation of the holders of Medicus Common
Stock to initiate all necessary action to perfect their appraisal rights within
the time prescribed in Section 262. A holder of shares of Medicus Common Stock
will fail to perfect, or effectively lose, his or her right to appraisal if no
petition for appraisal of shares of Medicus Common Stock is filed within 120
days after the Effective Time.
 
     If a petition for an appraisal is timely filed, after a hearing on such
petition, the Delaware Court of Chancery will determine the holders of shares of
Medicus Common Stock entitled to appraisal rights and will appraise the "fair
value" of the shares of Medicus Common Stock, exclusive of any element of value
arising from the accomplishment or expectation of the Merger. Holders
considering seeking appraisal should be aware that the "fair value" of their
shares of Medicus Common Stock as determined under Section 262 could be more
than, the same as, or less than the value of the Merger Consideration they would
receive if they did not seek appraisal. The Delaware Supreme Court has stated
that "proof of value by any techniques or methods which are generally considered
acceptable in the financial community and otherwise admissible in court" should
be considered in the appraisal proceedings. In addition, Delaware courts have
decided that the statutory appraisal remedy, depending on factual circumstances,
may or may not be a dissenter's exclusive remedy.
 
     The Delaware Court of Chancery will determine the amount of interest, if
any, to be paid upon the amounts to be received by persons whose shares of
Medicus Common Stock have been appraised. The costs of the action may be
determined by such court and taxed upon the parties as the court deems
equitable. The Delaware Court of Chancery may also order that all or a portion
of the expenses incurred by any holder of shares of Medicus Common Stock in
connection with an appraisal, including, without limitation, reasonable
attorneys' fees and the fees and expenses of experts utilized in the appraisal
proceeding, be charged pro rata against the value of all of the shares of
Medicus Common Stock entitled to appraisal.
 
     If any holder of shares of Medicus Common Stock who demands appraisal of
his or her shares under Section 262 fails to perfect, or effectively withdraws
or loses, his or her right to appraisal, as provided in the DGCL, such
stockholder will receive the Merger Consideration in accordance with the Merger
Agreement. A holder may withdraw his or her demand for appraisal by delivering
to the Surviving Corporation a written withdrawal of his or her demand for
appraisal and acceptance of the Merger, except that any such attempt to withdraw
made more than 60 days after the Effective Time will require the written
approval of the Surviving Corporation. Failure to follow the steps required by
Section 262 for perfecting appraisal rights may result in the loss of such
rights.
 
     Any holder of shares of Medicus Common Stock who has duly demanded an
appraisal in compliance with Section 262 will not, after the Effective Time, be
entitled to vote the shares of Medicus Common Stock subject to such demand for
any purpose or be entitled to the payment of dividends or other distributions on
 
                                       46
<PAGE>   55
 
those shares (except dividends or other distributions payable to holders of
record of shares of Medicus Common Stock as of a date prior to the Effective
Time).
 
     Shares of Medicus Common Stock held by any holder who shall have failed to
perfect or who effectively shall have withdrawn or lost his or her rights to
appraisal of such shares of Medicus Common Stock under Section 262 shall be
deemed to have been converted into and to have become exchangeable, as of the
Effective Time, for the right to receive, without any interest thereon, shares
of QuadraMed Common Stock based on the Exchange Ratio, as if such shares were
covered by Non-Elections, upon surrender of the certificate or certificates that
formerly evidenced such shares of Medicus Common Stock. See "THE MERGER
AGREEMENT -- Election for Shares or Cash."
 
                                       47
<PAGE>   56
 
                   THE STOCK PURCHASE AGREEMENTS AND WARRANTS
 
   
     On November 9, 1997, QuadraMed and certain stockholders of Medicus (the
"Selling Stockholders") entered into Stock Purchase Agreements pursuant to which
QuadraMed acquired 3,111,105 shares of Medicus Common Stock (56.7% of the then
outstanding shares). In consideration for the sale of Medicus Common Stock to
QuadraMed, QuadraMed agreed to pay to the Selling Stockholders $7.50 per share,
in cash, without interest, together with a warrant (the "Warrant") entitling the
Selling Stockholders to acquire 0.3125 shares of QuadraMed Common Stock for each
share of Medicus Common Stock sold. The aggregate purchase price paid by
QuadraMed to the Selling Stockholders was approximately $23.3 million in cash
plus Warrants to purchase an aggregate of 972,220 shares of QuadraMed Common
Stock as described in the following paragraphs. The Selling Stockholders, which
included Richard C. Jelinek, William G. Brown, Jon E.M. Jacoby, Gail L. Warden
and Dorsey R. Gardner, all of whom are directors of Medicus, and the number of
shares of Medicus Common Stock purchased from each Selling Stockholder are as
follows:
    
 
   
<TABLE>
<CAPTION>
                                                           SHARES OF MEDICUS
                  SELLING STOCKHOLDER                    COMMON STOCK PURCHASED
                  -------------------                    ----------------------
<S>                                                      <C>
William Gardner Brown Trust............................          216,010
Dorsey Gardner.........................................          119,225
Neal Goldman...........................................          144,000
HollyBank Investments, L.P.............................          550,778
Trigran Investments....................................          179,914
Stephens Group, Inc....................................           95,000
Jacoby Enterprises Inc.................................           45,000
Capital Two Corporation................................           20,000
Debbie Jelinek.........................................          100,000
Richard Jelinek........................................          832,700
Peter H. Kamin.........................................           27,500
Peter H. Kamin Children's Trust........................           12,000
Peak Investment, L.P...................................           60,600
Jacobs Family Co., LLC.................................           27,900
Pleiades Investment, L.P...............................           55,000
Petrus Fund, L.P.......................................           12,300
Walter J. McNerney.....................................          110,678
Jackson Stephens.......................................          100,000
Gail Warden............................................           92,000
FNY Securities Association, L.P........................           46,000
P.A.W. Partners, L.P...................................          115,000
P.A.W. Offshore Fund...................................          149,500
                                                               ---------
          Total                                                3,111,105
                                                               =========
</TABLE>
    
 
   
     The Warrants entitle the Selling Stockholders to purchase QuadraMed Common
Stock at a price of $24.00 per share (the closing price on the last trading day
prior to execution of the Stock Purchase Agreements), which would provide them
with additional value in the event the market price of QuadraMed Common Stock
were to increase above $24.00 per share. If at the Effective Time of the Merger,
the QuadraMed Stock Value (as defined below) exceeds $27.60, then the number of
shares of QuadraMed Common Stock issuable upon exercise of the Warrants shall be
adjusted downward such that the number of shares of QuadraMed Common Stock
issuable upon exercise of a Warrant shall be X, where X is equal to the Warrant
Value (as defined below) divided by the difference of (i) the QuadraMed Stock
Value minus (ii) $24.00. For purposes of the Warrants, the term "QuadraMed Stock
Value" means the price per share equal to the average of the closing prices of
QuadraMed Common Stock during the fifteen (15) days prior to the second day
prior to the date of the Special Meeting and the term "Warrant Value" means the
product obtained by multiplying $3.60 by the initial number of shares of
QuadraMed Common Stock issuable under the Warrants. To the extent that a Warrant
is not exercised at the Effective Time or the number of shares issuable upon
exercise of a Warrant is limited as set forth in the following paragraph, the
portion of a Warrant that is unexercised or subject to the limitations set forth
in the following paragraph shall terminate and shall be void and of no further
force or effect. The shares of QuadraMed Common Stock issuable upon exercise of
Warrants will be registered pursuant to a registration statement on Form S-3 to
be filed by QuadraMed.
    
 
   
     The Warrants were intended to provide to the Selling Stockholders the
opportunity to benefit from any increase in the price of the QuadraMed Common
Stock to a similar extent as other holders of Medicus Common Stock who may elect
to receive the Merger Consideration in the form of QuadraMed Common
    
 
                                       48
<PAGE>   57
 
   
Stock. The following examples illustrate the potential for each of the Selling
Stockholders and the existing Medicus stockholders to benefit from an increase
in the QuadraMed Common Stock:
    
 
   
Selling Stockholders
    
 
   
     In November 1997, each of the Selling Stockholders received from QuadraMed
$7.50 in cash per share of Medicus Common Stock and a Warrant to purchase 0.3125
shares of QuadraMed Common Stock for each share of Medicus Common Stock sold to
QuadraMed.
    
 
   
     Assume Selling Stockholder X sold 10,000 shares of Medicus Common Stock to
QuadraMed in November 1997. X would have received cash proceeds of $75,000 and a
Warrant to purchase 3,125 shares of QuadraMed Common Stock at $24.00 per share
at the Effective Time of the Merger. If the QuadraMed Stock Value (as defined
above) exceeds $27.60, the number of shares that X may purchase upon exercise of
the Warrant would be adjusted downward. For example, if the QuadraMed Stock
Value applicable at the Effective Time of the Merger is between $24.00 and
$27.60 (inclusive), the Warrant held by X would be exercisable for 3,125 shares
of QuadraMed Common Stock. However, if the QuadraMed Stock Value applicable at
the Effective Time of the Merger were $30.00, the Warrant held by X would be
exercisable for 1,875 shares of QuadraMed Common Stock. Therefore, the Warrant
adjusts to allow X only to benefit from an increase in the QuadraMed Stock Value
from $24.00 to $27.60.
    
 
   
Existing Medicus Stockholders
    
 
   
     Assume stockholder Y owns 10,000 shares of Medicus Common Stock. In the
Merger, Y may elect to receive (i) $7.50 in cash per share of Medicus Common
Stock, (ii) shares of QuadraMed Common Stock in exchange for Medicus Common
Stock, or (iii) a combination of both. Assuming that Y elects to exchange all
10,000 shares of Medicus Common Stock in the Merger and using the QuadraMed
Stock Values applied to Selling Stockholder X above, Y would receive the
following: (i) if the QuadraMed Stock Value is between $24.00 and $27.60
(inclusive), Y would receive 3,125 shares of QuadraMed Common Stock in the
Merger and (ii) if the QuadraMed Stock Value is $30.00, Y would receive 2,875
shares of QuadraMed Common Stock in the Merger. Similar to X, Y receives the
benefit of an increase in the QuadraMed Stock Value from $24.00 to $27.60
because no adjustment is made to the shares received or purchasable, as the case
may be, at the Effective Time of the Merger. Each of X and Y receive 3,125
shares of QuadraMed Common Stock within that range of QuadraMed Stock Values.
However, when the QuadraMed Stock Value exceeds $27.60, the number of shares
received by each of X and Y us subject to a downward adjustment, with Y's
adjustment being more gradual than the adjustment to Selling Stockholder X's
shares.
    
 
   
     In no event shall the aggregate number of shares of QuadraMed Common Stock
which QuadraMed is obligated to issue (1) upon conversion of the Warrants and
(2) in exchange for outstanding shares of Medicus Common Stock pursuant to the
Merger Agreement, exceed 1,800,000 shares of QuadraMed Common Stock. In the
event that the total number of shares of QuadraMed Common Stock which holders of
Warrants and holders of Medicus Common Stock have elected to receive as
described in clauses (1) and (2) in the immediately preceding sentence exceeds
1,800,000, QuadraMed shall only be required to issue 1,800,000 shares of
QuadraMed Common Stock and such holders shall be entitled to receive shares of
QuadraMed Common Stock equal to each holder's pro rata portion of the total
amount of shares issued by QuadraMed as described in clauses (1) and (2), based
on the total number of shares each holder elected to receive. See "THE MERGER
AGREEMENT -- Limitation on Shares Issuable."
    
 
   
     In lieu of the cash payment described above, QuadraMed delivered to William
G. Brown, a Selling Stockholder and director of Medicus, a promissory note in
the amount of $1,620,075 (which note bore interest at a rate of five percent per
annum and was paid in full on January 5, 1998) in exchange for Mr. Brown's
transfer to QuadraMed of 216,010 shares of Medicus Common Stock.
    
 
   
     In connection with the Merger, Mr. Sommers and Mr. Jelinek, option holders
of Medicus, granted irrevocable proxies to QuadraMed with respect to all shares
of Medicus Common Stock which are issuable upon exercise of outstanding options
or warrants to purchase 643,000 shares of Medicus Common Stock owned by them
(the "Option Shares"). Pursuant to the proxies, QuadraMed is empowered to
exercise all voting and other rights with respect to the Option Shares as it
deems proper in respect of any matter at a meeting of stockholders, or any
written consent in lieu of a meeting of stockholders.
    
 
                                       49
<PAGE>   58
 
                              THE SPECIAL MEETING
 
PURPOSE OF THE SPECIAL MEETING
 
     At the Special Meeting, holders of record of Medicus Common Stock entitled
to vote as of the Medicus Record Date (as defined below) will consider and vote
upon a proposal to approve and adopt the Merger Agreement and such other matters
as may properly be brought before the Special Meeting.
 
     THE BOARD OF DIRECTORS OF MEDICUS HAS UNANIMOUSLY APPROVED THE MERGER
AGREEMENT AND RECOMMENDS A VOTE FOR APPROVAL AND ADOPTION OF THE MERGER
AGREEMENT.
 
RECORD DATE; VOTING RIGHTS; PROXIES
 
   
     The Medicus Board has established a Record Date Committee (consisting of
Messrs. Brown and Sommers) which has fixed the close of business on [March 16],
1998 as the record date (the "Medicus Record Date") for determining holders of
Medicus Common Stock entitled to notice of and to vote at the Special Meeting.
    
 
   
     As of the Medicus Record Date, there were [5,500,440] shares of Medicus
Common Stock issued and outstanding, each of which entitles the holder thereof
to one vote. All shares of Medicus Common Stock represented by properly executed
proxies will, unless such proxies have been previously revoked, be voted in
accordance with the instructions indicated in such proxies. IF NO INSTRUCTIONS
ARE INDICATED, SUCH SHARES OF MEDICUS COMMON STOCK WILL BE VOTED FOR APPROVAL
AND ADOPTION OF THE MERGER AGREEMENT.
    
 
     Votes cast by proxy or in person at the Special Meeting will be tabulated
by the election inspectors appointed for the meeting who will determine whether
or not a quorum is present. Where, as to any matter submitted to the
stockholders for a vote, proxies are marked as abstentions (or stockholders
appear in person but abstain from voting), such abstentions will be treated as
shares that are present and entitled to vote for purposes of determining the
presence of a quorum but as unvoted for purposes of determining the approval of
any matter submitted to the stockholders for a vote. If a broker indicates on
the proxy that it does not have discretionary authority as to certain shares to
vote on a particular matter, those shares will be treated as shares that are
present and entitled to vote for purposes of determining the presence of a
quorum but will not be considered as present and entitled to vote with respect
to that matter.
 
SOLICITATION OF PROXIES
 
     Medicus will bear its own cost of solicitation of proxies. In addition to
the use of the mails, proxies may be solicited by the directors and officers of
Medicus by personal interview, telephone, telegram or E-mail. Such directors and
officers will not receive additional compensation for such solicitation but may
be reimbursed for out-of-pocket expenses incurred in connection therewith.
Arrangements may also be made with brokerage firms and other custodians,
nominees and fiduciaries to forward solicitation materials to the beneficial
owners of shares of Medicus Common Stock held of record by such persons, in
which case Medicus will reimburse such brokerage firms, custodians, nominees and
fiduciaries for reasonable out-of-pocket expenses incurred by them in connection
therewith.
 
QUORUM
 
     The presence in person or by properly executed proxy of holders of a
majority of the issued and outstanding shares of Medicus Common Stock entitled
to vote as of the Medicus Record Date is necessary to constitute a quorum at the
Special Meeting. Under applicable Delaware Law, abstentions and "broker
non-votes" (that is, proxies from brokers or nominees indicating that such
persons have not received instructions from the beneficial owner or other person
entitled to vote shares as to a matter with respect to which the brokers or
nominees do not have discretionary power to vote) will be treated as present for
purposes of determining the presence of a quorum at the Special Meeting.
 
                                       50
<PAGE>   59
 
REQUIRED VOTE
 
   
     The approval of the Merger requires the affirmative vote of the holders of
a majority of the outstanding shares of Medicus Common Stock. QuadraMed, which
owns 56.6% of the outstanding shares of Medicus Common Stock as of February 27,
1998 will vote its shares of Medicus Common Stock in favor of approval and
adoption of the Merger Agreement and the transactions contemplated thereby. In
addition, in connection with the Merger, Patrick Sommers and Richard C. Jelinek
granted irrevocable proxies to QuadraMed with respect to all shares of Medicus
Common Stock which are issuable upon exercise of outstanding options or warrants
to purchase 643,000 shares of Medicus Common Stock owned by them (the "Option
Shares"). Pursuant to the proxies, QuadraMed is empowered to exercise all voting
and other rights with respect to the Option Shares as it deems proper in respect
of any matter at a meeting of stockholders, or any written consent in lieu of a
meeting of stockholders. As a result, QuadraMed has sufficient voting power to
approve and adopt the Merger Agreement and the Merger. The Merger Agreement does
not require that the Merger be approved by a majority of the unaffiliated
Medicus stockholders.
    
 
   
     As of the Medicus Record Date, there were [     ] shares of Medicus Common
Stock outstanding and entitled to vote held by approximately [  ] stockholders
of record. As of the Medicus Record Date, QuadraMed and directors and officers
of Medicus and their affiliates as a group beneficially owned [     ] shares of
Medicus Common Stock, or approximately [  ]% of those shares of Medicus Common
Stock outstanding as of such date.
    
 
   
     THE MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING ARE OF GREAT IMPORTANCE
TO THE STOCKHOLDERS OF MEDICUS. ACCORDINGLY, STOCKHOLDERS ARE URGED TO READ AND
CAREFULLY CONSIDER THE INFORMATION PRESENTED IN THIS PROXY STATEMENT/PROSPECTUS,
AND TO COMPLETE, DATE, SIGN AND PROMPTLY RETURN THE ENCLOSED PROXY IN THE
ENCLOSED POSTAGE PAID ENVELOPE.
    
 
                                       51
<PAGE>   60
 
                                   THE MERGER
GENERAL
 
   
     The Merger Agreement provides that the Merger will be consummated if the
approval of the Medicus stockholders required therefor is obtained and all other
conditions to the Merger are satisfied or waived. Pursuant to the Merger
Agreement, QuadraMed, which owns 56.6% of the Medicus Common Stock as of
February 27, 1998, has agreed and intends to vote all of its shares of Medicus
Common Stock in favor of the Merger. As a result, QuadraMed's affirmative vote
for approval and adoption of the Merger Agreement is sufficient to approve the
Merger. See "THE MERGER AGREEMENT -- Conditions to Consummation of the Merger."
    
 
   
     Upon consummation of the Merger, Merger Sub, a wholly owned subsidiary of
QuadraMed, will be merged with and into Medicus, and Medicus will become a
wholly owned subsidiary of QuadraMed. Upon consummation of the Merger, each
outstanding share of Medicus Common Stock (other than shares owned by Medicus as
treasury stock or by its subsidiaries or shares owned by QuadraMed or any direct
or indirect wholly owned subsidiary of QuadraMed, all of which will be
cancelled) will be automatically converted into the right to receive any of (i)
$7.50 in cash, without interest (the "Per Share Cash Amount"); or (ii) 0.3125
shares of QuadraMed Common Stock (the "Exchange Ratio"), subject to adjustment
and certain limitations as described in the Merger Agreement; or (iii) a
combination of shares of QuadraMed Common Stock and cash (collectively, the
"Merger Consideration"). The Exchange Ratio is subject to the following
adjustments: if (1) the QuadraMed Stock Value exceeds $27.60, then the Exchange
Ratio shall be the quotient obtained by dividing (A) $8.625 by (B) the QuadraMed
Stock Value, and (2) the QuadraMed Stock Value is less than $24.00, then the
Exchange Ratio shall be the quotient obtained by dividing (A) $7.50 by (B) the
QuadraMed Stock Value. Additionally, if the QuadraMed Stock Value is less than
$20.40, then QuadraMed may elect, at its sole discretion, to cause all or any
portion of the shares of Medicus Common Stock to be converted into the Per Share
Cash Amount (the "QuadraMed Cash Election"). In the event of a QuadraMed Cash
Election in which less than all of the outstanding shares of Medicus Common
Stock will be converted into cash, the shares of Medicus Common Stock to be
converted into cash as a result of the QuadraMed Cash Election will be selected
pro rata according to the number of shares with respect to which a Stock
Election has been made. The "QuadraMed Stock Value" is equal to the average of
the closing prices of QuadraMed Common Stock during the fifteen (15) days prior
to the second day prior to the date of the Special Meeting. See "SUMMARY -- THE
MERGER -- Merger Consideration" for an illustration of various Exchange Ratios
at various QuadraMed Stock Values.
    
 
     Each record holder of Medicus Common Stock may elect to receive the Per
Share Cash Amount (a "Cash Election"), shares of QuadraMed Common Stock (a
"Stock Election") or a combination of both. Shares of Medicus Common Stock for
which no election is received or for which a stockholder has indicated no
preference for cash or shares (a "Non-Election") will automatically be converted
into the right to receive QuadraMed Common Stock. The maximum number of shares
of QuadraMed Common Stock which QuadraMed is obligated to issue in the Merger
and upon exercise of the Warrants is 1,800,000 shares. If the aggregate number
of shares of QuadraMed Common Stock issuable pursuant to Stock Elections and
issuable upon exercise of the Warrants exceeds 1,800,000, the shares issuable
upon consummation of the Merger and exercise of the Warrants will be allocated
on a pro rata basis. See "THE MERGER AGREEMENT -- Limitation on Shares
Issuable."
 
   
     Based upon the capitalization of Medicus and QuadraMed (as adjusted for and
assuming the issuance of 1,800,000 shares of QuadraMed Common Stock and assuming
no adjustment of the Exchange Ratio) as of December 31, 1997, the stockholders
of Medicus will own approximately 14.5% of the outstanding QuadraMed Common
Stock following consummation of the Merger. Such percentage could change
depending on the number of shares of QuadraMed Common Stock and Medicus Common
Stock issued upon exercise of outstanding Medicus and QuadraMed stock options
and warrants or otherwise issued prior to the Effective Time.
    
 
                                       52
<PAGE>   61
 
EFFECTIVE TIME
 
     The Effective Time of the Merger will occur upon the filing of a
Certificate of Merger with the Secretary of State of the State of Delaware (the
"Certificate of Merger"). The filing of the Certificate of Merger will occur on
the date of closing of the transactions contemplated in the Merger Agreement
(the "Closing Date"). QuadraMed and Medicus currently expect that the closing
will occur promptly after the Special Meeting. The Merger Agreement may be
terminated by either party if the Merger has not been consummated on or before
May 1, 1998 and under certain other conditions. See "THE MERGER
AGREEMENT -- Conditions to Consummation of the Merger," "-- Termination;
Expenses; Amendment; Waiver."
 
   
ELECTION PROCEDURES; PROCEDURES FOR SURRENDER AND EXCHANGE OF CERTIFICATES
    
 
   
     Concurrently with the mailing of this Proxy Statement/Prospectus, an
election form is being sent to holders of Medicus Common Stock together with
other appropriate and customary transmittal material ("Form of Election"), which
materials specify that delivery will be effected, and risk of loss and title to
the certificates representing Medicus Common Stock ("Certificates") will pass
only upon proper delivery of such Certificates to the exchange agent, currently
State Street Bank and Trust Company (the "Exchange Agent").
    
 
     Each record holder of Medicus Common Stock may elect to receive the Per
Share Cash Amount, shares of QuadraMed Common Stock or a combination of both by
submitting a Form of Election to the Exchange Agent no later than the Election
Deadline. Record holders who indicate no preference on the Form of Election or
who do not submit a Form of Election prior to the Election Deadline will
automatically have their shares of Medicus Common Stock converted into the right
to receive shares of QuadraMed Common Stock at the Effective Time (subject to
QuadraMed's right to make the QuadraMed Cash Election and QuadraMed's obligation
to issue no more than 1,800,000 shares of QuadraMed Common Stock in the Merger).
 
   
     To be effective, a properly completed and executed Form of Election must be
submitted to the Exchange Agent on or before 5:00 p.m. New York City time on
[April 15], 1998 (the "Election Deadline"). A Form of Election will be deemed
properly completed and executed only if accompanied by one or more Certificates
representing all shares of Medicus Common Stock covered by such Form of
Election, together with the duly executed transmittal materials included in the
Form of Election. Medicus stockholders may change their election at any time
prior to the Election Deadline by written notice received by the Exchange Agent
prior to the Election Deadline or by withdrawal of their Certificates prior to
the Election Deadline. Upon receipt of such Certificates, the Exchange Agent
will deliver, as the case may be, (i) the Per Share Cash Amount and/or (ii)
whole shares of QuadraMed Common Stock to such stockholder and cash in lieu of
fractional shares to which such holder would otherwise be entitled pursuant to
the terms of the Merger Agreement and in accordance with the letter of
transmittal, together with any dividends or other distributions to which such
stockholder is entitled, without interest. See "THE MERGER AGREEMENT -- Election
for Shares or Cash."
    
 
   
     After the Effective Time, there will be no further transfers of Medicus
Common Stock on the stock transfer books of Medicus. If a Certificate
representing Medicus Common Stock is presented for transfer, it will be
cancelled and exchanged as provided in the Merger Agreement. See "THE MERGER
AGREEMENT -- Surrender and Payment."
    
 
     After the Effective Time and until surrendered, Certificates which formerly
represented shares of Medicus Common Stock will be deemed for all corporate
purposes, other than the payment of dividends and distributions, to evidence
ownership of the number of full shares of QuadraMed Common Stock or the Per
Share Cash Amount, as the case may be, into which such shares of Medicus Common
Stock were converted at the Effective Time. After the Effective Time, no
dividends or other distributions, if any, payable to holders of QuadraMed Common
Stock will be paid to the holders of any Certificates until such Certificates
are surrendered. Upon surrender of such Certificates, all such declared
dividends and distributions with a record date after the Effective Time will be
paid to the holder of record of certificates representing the full shares of
QuadraMed Common Stock represented by the certificate issued in exchange
therefor, without interest. See "THE MERGER AGREEMENT -- Surrender and Payment."
It should be noted that QuadraMed has never declared any cash dividends on the
QuadraMed Common Stock. QuadraMed currently intends to retain
                                       53
<PAGE>   62
 
future earnings, if any, to fund the development and growth of its business and
does not anticipate paying any cash dividends on the QuadraMed Common Stock in
the foreseeable future. In addition, QuadraMed's credit agreement contains
provisions that restrict the payment of dividends.
 
TREATMENT OF STOCK OPTIONS AND OUTSTANDING WARRANTS
 
   
     At the Effective Time, the obligations under the Medicus Stock Option Plans
and the TriHealth Warrant will be assumed by QuadraMed and shall continue to
have, and be subject to, the same terms and conditions set forth therein, except
that (i) each of the assumed options and warrants will be exercisable for that
number of whole shares of QuadraMed Common Stock equal to the product of the
number of shares of Medicus Common Stock that were issuable upon exercise of
such option or warrant immediately prior to the Effective Time multiplied by
0.3565, rounded down to the nearest whole number of shares of QuadraMed Common
Stock, (ii) the Director Options will be fully vested and shall remain
exercisable for a period of three years after the Effective Time (or three years
after termination of employment in the case of Mr. Sommers) and (iii) the per
share exercise price for the shares of QuadraMed Common Stock issuable upon
exercise of such assumed option or warrant will be equal to the quotient
determined by dividing the exercise price per share of Medicus Common Stock at
which such option or warrant was exercisable immediately prior to the Effective
Time by 0.3565, rounded up to the nearest whole cent.
    
 
   
     At the Effective Time, the Jelinek Warrants shall be purchased and
cancelled by QuadraMed in exchange for QuadraMed Common Stock with an aggregate
value of $1.12 million. See "SPECIAL FACTORS -- Interests of Certain Persons in
the Merger."
    
 
   
     HOLDERS OF MEDICUS COMMON STOCK SHOULD NOT FORWARD STOCK CERTIFICATES TO
THE EXCHANGE AGENT UNTIL THEY HAVE RECEIVED THE FORM OF ELECTION FROM THE
EXCHANGE AGENT. HOLDERS OF MEDICUS COMMON STOCK SHOULD NOT RETURN STOCK
CERTIFICATES WITH THE ENCLOSED PROXY.
    
 
                              THE MERGER AGREEMENT
 
     The following description of the Merger Agreement is necessarily a summary
thereof and is therefore qualified in its entirety by reference to the Merger
Agreement, a copy of which is attached to this Proxy Statement/Prospectus as
Annex A and incorporated herein by reference. Stockholders of Medicus are urged
to read the Merger Agreement in its entirety.
 
THE MERGER
 
     The Merger Agreement provides that, subject to the approval of the Merger
by the stockholders of Medicus and the satisfaction or waiver of the other
conditions to the Merger, a newly formed subsidiary of QuadraMed ("Merger Sub")
will be merged with and into Medicus in accordance with Delaware law, whereupon
the separate existence of Merger Sub will cease and Medicus will be the
surviving corporation of the Merger (the "Surviving Corporation"). Merger Sub
was formed solely to complete the Merger. At the Effective Time, the conversion
of Medicus Common Stock and the conversion of shares of the common stock of
Merger Sub pursuant thereto will be effected as described below. The Certificate
of Incorporation and Bylaws of Merger Sub will become the Certificate of
Incorporation and Bylaws of the Surviving Corporation and may thereafter be
amended and/or restated as provided therein and by Delaware law. The directors
and officers of Merger Sub shall become the directors and officers of the
Surviving Corporation.
 
TERMS OF THE MERGER
 
   
     At the Effective Time, each share of Medicus Common Stock issued and
outstanding immediately prior to the Effective Time (other than shares owned by
Medicus as treasury stock or by its subsidiaries or shares owned by QuadraMed or
any direct or indirect wholly owned subsidiary of QuadraMed, all of which will
be cancelled) will be cancelled and extinguished and be converted automatically
into the right to receive any of (i) the Per Share Cash Amount; or (ii) the
Exchange Ratio; or (iii) a combination of shares of QuadraMed
    
 
                                       54
<PAGE>   63
 
   
Common Stock and the Per Share Cash Amount. The Exchange Ratio is subject to the
following adjustments: (i) if the QuadraMed Stock Value exceeds $27.60, then the
Exchange Ratio shall be the quotient obtained by dividing (A) $8.625 by (B) the
QuadraMed Stock Value, and (ii) if the QuadraMed Stock Value is less than
$24.00, then the Exchange Ratio shall be the quotient obtained by dividing (A)
$7.50 by (B) the QuadraMed Stock Value; provided further, however, that if the
QuadraMed Stock Value is less than $20.40, then QuadraMed may, at its sole
discretion, elect to have all or any portion of the shares of Medicus Common
Stock converted into the Per Share Cash Amount (the "QuadraMed Cash Election").
In the event of a QuadraMed Cash Election in which less than all of the
outstanding shares of Medicus Common Stock will be converted into cash, the
shares of Medicus Common Stock to be converted into cash as a result of the
QuadraMed Cash Election will be selected pro rata according to the number of
shares with respect to which a Stock Election (as defined in "-- Election for
Shares or Cash") has been made. The amounts paid in the Merger in exchange for
shares of Medicus Common Stock shall be referred to herein as the "Merger
Consideration."
    
 
     At the Effective Time, the Medicus 1989 Stock Option Plan, the Medicus 1991
Stock Option Plan, the Medicus 1993 Stock Option Plan, the Medicus 1993
Performance Stock Option Plan, the Medicus 1994 Stock Option Plan, the Medicus
1994 Directors' Stock Option Plan, the Medicus 1995 RCM Stock Option Plan, the
Medicus 1996 C.E.O. Stock Option Plan, the Medicus 1996 C.E.O. Replacement Stock
Option Plan, the Medicus 1996 C.E.O. Special Stock Option Plan, the Medicus 1997
Employee Stock Option and Restricted Stock Plan, and the Medicus 1997 Directors'
Stock Option Plan (collectively, the "Medicus Stock Option Plans"), the
TriHealth Warrant and all options or rights to purchase Medicus Common Stock
then outstanding under the Medicus Stock Option Plans, and the TriHealth
Warrant, shall be assumed by QuadraMed.
 
FRACTIONAL SHARES
 
     No fraction of a share of QuadraMed Common Stock will be issued in the
Merger. In lieu of any fractional shares that would otherwise be issuable in the
Merger in exchange for shares of Medicus Common Stock, QuadraMed shall pay the
proportionate amount of the Per Share Cash Amount that would be payable in
respect of such fractional share.
 
LIMITATION ON SHARES ISSUABLE
 
     In no event shall the aggregate number of shares of QuadraMed Common Stock
which QuadraMed is obligated to issue in the aggregate (i) upon the exercise of
the Warrants and (ii) in exchange for outstanding shares of Medicus Common Stock
pursuant to the Merger Agreement exceed a total of 1,800,000 shares. In the
event that the aggregate number of shares of QuadraMed Common Stock that holders
of Warrants and holders of Medicus Common Stock have elected to receive as
described in clauses (i) and (ii) in the immediately preceding sentence exceeds
1,800,000, QuadraMed shall only be required to issue 1,800,000 shares of
QuadraMed Common Stock and such holders shall be entitled to receive shares of
QuadraMed Common Stock equal to each holder's pro rata portion of the total
amount of shares issued by QuadraMed as described in clauses (i) and (ii), based
on the total number of shares each holder elected to receive. See "THE STOCK
PURCHASE AGREEMENTS AND WARRANTS."
 
ELECTION FOR SHARES OR CASH
 
   
     Immediately prior to the Effective Time, each record holder of shares of
Medicus Common Stock will be entitled (i) to elect to receive cash for none,
some or all of such shares (a "Cash Election"), (ii) to elect to receive
QuadraMed Common Stock for none, some or all of such shares (a "Stock
Election"), or (iii) to indicate that such record holder has no preference as to
the receipt of cash or QuadraMed Common Stock for such shares (a
"Non-Election"). All such elections shall be made on a Form of Election. Holders
of record of shares of Medicus Common Stock who hold such shares as nominees,
trustees or in other representative capacities (a "Representative") may submit
multiple Forms of Election, provided that such Representative certifies that
each such Form of Election covers all the shares of Medicus Common Stock held by
each Representative for a particular beneficial owner. All shares of Medicus
Common Stock covered by Stock
    
                                       55
<PAGE>   64
 
Elections (the "Stock Election Shares") and all shares of Medicus Common Stock
covered by Non-Elections (the "Non-Election Shares") shall be converted into the
right to receive QuadraMed Common Stock (subject to QuadraMed's right to make
the QuadraMed Cash Election and QuadraMed's obligation to issue no more than
1,800,000 shares of QuadraMed Common Stock in the Merger), and the Cash Election
Shares shall be converted into the right to receive cash, without interest.
 
   
     Elections shall be made by holders of Medicus Common Stock by mailing or
otherwise delivering to the Exchange Agent a Form of Election no later than the
Election Deadline. To be effective, a Form of Election must be properly
completed, signed and submitted to the Exchange Agent as described in "THE
MERGER -- Election Procedures; Procedures for Surrender and Exchange of
Certificates." QuadraMed will have the discretion, which it may delegate in
whole or in part to the Exchange Agent, to determine whether Forms of Election
have been properly completed, signed and submitted or revoked and to disregard
immaterial defects in Forms of Election. The decision of QuadraMed (or the
Exchange Agent) in such matters shall be conclusive and binding. Neither
QuadraMed nor the Exchange Agent will be under any obligation to notify any
person of any defect in a Form of Election submitted to the Exchange Agent. The
Exchange Agent shall also make all computations contemplated by the Merger
Agreement and all such computations shall be conclusive and binding on the
holders of Medicus Common Stock. A holder of Medicus Common Stock who does not
submit a Form of Election which is received by the Exchange Agent prior to the
Election Deadline shall be deemed to have made a Non-Election. If QuadraMed or
the Exchange Agent shall determine that any purported Cash Election or Stock
Election was not properly made, such purported Cash Election or Stock Election
shall be deemed to be of no force and effect and the stockholder making such
purported Cash Election or Stock Election shall be deemed to have made a
Non-Election. QuadraMed and Medicus shall each use its reasonable best efforts
to mail the Form of Election to all persons who become holders of Medicus Common
Stock during the period between the Medicus Record Date and 10:00 a.m.
California time, on the date seven calendar days prior to the anticipated
Effective Time and to make the Form of Election available to all persons who
become holders of Medicus Common Stock subsequent to such day and no later than
the close of business on the business day prior to the Effective Time. A Form of
Election must be received by the Exchange Agent prior to the Election Deadline
in order to be effective. All elections may be revoked until the Election
Deadline.
    
 
SURRENDER AND PAYMENT
 
   
     Promptly after the Effective Time, QuadraMed shall make available to the
Exchange Agent (i) the shares of QuadraMed Common Stock issuable in exchange for
Stock Election Shares and Non-Election Shares and (ii) cash in an amount
sufficient to make payment with respect to Cash Election Shares and permit
payment of cash in lieu of fractional shares.
    
 
   
     QuadraMed and Medicus shall cause to be mailed to each holder of record of
the Certificate(s) which immediately prior to the Effective Time represented
outstanding shares of Medicus Common Stock, whose shares will be converted into
the right to receive shares of QuadraMed Common Stock (and cash in lieu of
fractional shares) or the Per Share Cash Amount a Form of Election which shall
(i) specify that delivery shall be effected, and risk of loss and title to the
Certificates shall pass, only upon receipt of the Certificates by the Exchange
Agent, and shall be in such form and have such other provisions as QuadraMed may
reasonably specify and (ii) include instructions for use in effecting the
surrender of the Certificates in exchange for certificates representing shares
of QuadraMed Common Stock (and cash in lieu of fractional shares) or the Per
Share Cash Amount. At the Effective Time and upon surrender of a Certificate for
cancellation to the Exchange Agent or to such other agent or agents as may be
appointed by QuadraMed, together with such letter of transmittal, duly completed
and validly executed in accordance with the instructions thereto, the holder of
such Certificate shall be entitled to receive in exchange therefor (i) a
certificate representing the number of whole shares of QuadraMed Common Stock
and payment in lieu of fractional shares which such holder has the right to
receive or (ii) the Per Share Cash Amount, as the case may be, and the
Certificate so surrendered shall be canceled. Until so surrendered, each
outstanding Certificate that, prior to the Effective Time, represented shares of
Medicus Common Stock will be deemed for all corporate purposes, other than the
payment of dividends, to evidence the ownership of the number of full shares of
QuadraMed Common Stock
    
 
                                       56
<PAGE>   65
 
or the Per Share Cash Amount, as the case may be, into which such shares of
Medicus Common Stock shall have been so converted and the right to receive an
amount in cash in lieu of the issuance of any fractional shares.
 
     No dividends or other distributions with respect to QuadraMed Common Stock
with a record date after the Effective Time will be paid to the holder of any
unsurrendered Certificate with respect to the shares of QuadraMed Common Stock
represented thereby until the holder of record of such Certificate shall
surrender such Certificate. Subject to applicable law, following surrender of
any such Certificate, there shall be paid to the record holder of the
certificates representing whole shares of QuadraMed Common Stock issued in
exchange therefor, without interest, at the time of such surrender, the amount
of any such dividends or other distributions with a record date after the
Effective Time payable with respect to such shares of QuadraMed Common Stock.
QuadraMed has never declared any cash dividends on the QuadraMed Common Stock.
QuadraMed currently intends to retain future earnings, if any, to fund the
development and growth of its business and does not anticipate paying any cash
dividends on the QuadraMed Common Stock in the foreseeable future. In addition,
QuadraMed's credit agreement contains provisions that restrict the payment of
dividends.
 
     If any certificate for shares of QuadraMed Common Stock is to be issued in
a name other than that in which the Certificate surrendered in exchange therefor
is registered, it will be a condition of the issuance thereof that the
Certificate so surrendered will be properly endorsed and otherwise in proper
form for transfer and that the person requesting such exchange will have paid to
QuadraMed or any agent designated by it any transfer or other taxes required by
reason of the issuance of a certificate for shares of QuadraMed Common Stock in
any name other than that of the registered holder of the Certificate
surrendered, or established to the satisfaction of QuadraMed or any agent of
QuadraMed that such tax has been paid or is not payable.
 
     In the event any Certificates shall have been lost, stolen or destroyed,
the Exchange Agent shall issue QuadraMed Common Stock (and cash in lieu of
fractional shares) in exchange for such lost, stolen or destroyed Certificates,
upon the making of an affidavit of that fact by the holder thereof. QuadraMed
may, in its discretion and as a condition precedent to the issuance of shares of
QuadraMed Common Stock, require the owner of such lost, stolen or destroyed
Certificates to deliver a bond in such sum as it may reasonably direct as
indemnity against any claim that may be made against QuadraMed, the Surviving
Corporation or the Exchange Agent with respect to the Certificates alleged to
have been lost, stolen or destroyed.
 
   
     DETAILED INSTRUCTIONS IN A FORM OF ELECTION AND LETTER OF TRANSMITTAL WILL
BE MAILED TO HOLDERS OF RECORD OF MEDICUS COMMON STOCK AS TO THE METHOD OF
EXCHANGING CERTIFICATES FORMERLY REPRESENTING SHARES OF MEDICUS COMMON STOCK FOR
CASH OR CERTIFICATES REPRESENTING SHARES OF QUADRAMED COMMON STOCK. SEE "THE
MERGER -- ELECTION PROCEDURES; PROCEDURES FOR SURRENDER AND EXCHANGE OF
CERTIFICATES." STOCKHOLDERS OF MEDICUS SHOULD NOT SEND CERTIFICATES REPRESENTING
THEIR SHARES TO MEDICUS OR TO THE EXCHANGE AGENT PRIOR TO RECEIPT OF THE FORM OF
ELECTION AND LETTER OF TRANSMITTAL.
    
 
CONDITIONS TO CONSUMMATION OF THE MERGER
 
   
     The obligations of QuadraMed and Medicus to consummate the Merger are
subject to the satisfaction of certain conditions, including: (i) the approval
of the Merger Agreement and the transactions contemplated thereby by the holders
of a majority of the outstanding shares of Medicus Common Stock as of the
Medicus Record Date, (ii) the Registration Statement shall have been declared
effective by the Commission and no stop orders with respect thereto shall have
been issued by the Commission and remain in effect; (iii) the absence of any
temporary restraining order, preliminary or permanent injunction or other order
issued by any federal or state court in the United States which prevents the
consummation of the Merger (each party agreeing to use its reasonable diligent
efforts to have any such injunction lifted); (iv) all necessary government
approvals, waivers and consents shall have been obtained, including such
approvals, waivers and consents required under the provisions of the Securities
Act and approvals under any applicable state securities law; and
    
 
                                       57
<PAGE>   66
 
(v) application shall have been made with the Nasdaq National Market to list the
shares of QuadraMed Common Stock issuable to Medicus stockholders pursuant to
the Merger Agreement.
 
   
     The obligation of Medicus to consummate the Merger is also subject to the
satisfaction of the following further conditions (unless waived in writing by
Medicus): (i) the representations and warranties of QuadraMed in the Merger
Agreement shall be true and correct in all material respects (except for such
representations and warranties that are qualified by their terms by a reference
to materiality which representations and warranties as so qualified shall be
true in all respects) on and as of the Effective Time as though such
representations and warranties were made on and as of such time; (ii) QuadraMed
and Merger Sub shall have performed and complied in all material respects with
all covenants, obligations and conditions of the Merger Agreement required to be
performed and complied with by them as of the Effective Time; (iii) Medicus
shall have been provided with a certificate executed on behalf of QuadraMed by
its President and its Chief Financial Officer to the effect that, as of the
Effective Time, all representations and warranties made by QuadraMed and Merger
Sub under the Merger Agreement are true and complete in all material respects
and all covenants, obligations and conditions of the Merger Agreement to be
performed by QuadraMed and Merger Sub on or before such date have been so
performed in all material respects; (iv) there shall not have occurred any
material adverse change in the condition (financial or otherwise), properties,
assets (including intangible assets), liabilities, business, operations, results
of operations or prospects of QuadraMed and its subsidiaries, taken as a whole;
(v) Medicus shall have been furnished with evidence satisfactory to it of the
consent or approval of those persons whose consent or approval shall be required
in connection with the Merger under any material contract of QuadraMed or any of
its subsidiaries or otherwise; and (vi) no temporary restraining order,
preliminary or permanent injunction or other order issued by any court of
competent jurisdiction or other legal or regulatory restraint provision limiting
or restricting QuadraMed's business following the Merger shall be in effect, nor
shall any proceeding brought by an administrative agency or commission or other
governmental entity, domestic or foreign, seeking the foregoing be pending.
    
 
     The obligations of QuadraMed and Merger Sub to consummate the Merger are
also subject to the satisfaction of the following further conditions (unless
waived in writing by QuadraMed): (i) the representations and warranties of
Medicus in the Merger Agreement shall be true and correct in all material
respects (except for such representations and warranties that are qualified by
their terms by a reference to materiality, which representations and warranties
as so qualified shall be true in all respects) on and as of the Effective Time
as though such representations and warranties were made on and as of such time;
(ii) Medicus shall have performed and complied in all material respects with all
covenants, obligations and conditions of the Merger Agreement required to be
performed and complied with by it as of the Effective Time; (iii) QuadraMed
shall have been provided with a certificate executed on behalf of Medicus by its
President and its Chief Financial Officer to the effect that, as of the
Effective Time, all representations and warranties made by Medicus under the
Merger Agreement are true and complete in all material respects and all
covenants, obligations and conditions of the Merger Agreement to be performed by
Medicus on or before such date have been so performed in all material respects;
(iv) QuadraMed shall have been furnished with evidence satisfactory to it of the
consent or approval of those persons whose consent or approval shall be required
in connection with the Merger under any material contract of Medicus or any of
its subsidiaries or otherwise; (v) no temporary restraining order, preliminary
or permanent injunction or other order issued by any court of competent
jurisdiction or other legal or regulatory restraint provision limiting or
restricting QuadraMed's conduct or operation of the business of Medicus and its
subsidiaries following the Merger shall be in effect, nor shall any proceeding
brought by an administrative agency or commission or other governmental entity,
domestic or foreign, seeking the foregoing be pending; (vi) there shall not have
occurred any material adverse change in the condition (financial or otherwise),
properties, assets (including intangible assets), liabilities, business,
operations, results of operations or prospects of Medicus and its subsidiaries,
taken as a whole; and (vii) QuadraMed shall have received from each of the
affiliates of Medicus an executed Affiliate Agreement.
 
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<PAGE>   67
 
REPRESENTATIONS AND WARRANTIES
 
     The Merger Agreement contains various representations and warranties of
QuadraMed and Medicus relating to, among other things, the following matters
(which representations and warranties are subject, in certain cases, to
specified exceptions): (i) the due organization, power and standing of, and
similar corporate matters with respect to, each of Medicus and QuadraMed and
Merger Sub; (ii) the capitalization of each of Medicus and QuadraMed and Merger
Sub; (iii) performance and enforceability of the Merger Agreement by each such
party and of the transactions contemplated thereby; (iv) the absence of any
conflict with each of Medicus' and QuadraMed's Certificate of Incorporation,
Bylaws and material agreements and instruments and compliance with applicable
laws; (v) reports and other documents filed with the Commission and other
regulatory authorities and the accuracy of the information contained therein;
(vi) the absence of certain changes or events having a material adverse effect
on the financial condition, business or results of operations of Medicus and
QuadraMed; (vii) the absence of any undisclosed liabilities, litigation or
restrictions on business activities of Medicus and QuadraMed; and (viii)
compliance with applicable laws.
 
   
CONDUCT OF BUSINESS PENDING THE MERGER
    
 
     During the period from the date of the Merger Agreement and continuing
until the earlier of the termination of the Merger Agreement or the Effective
Time, each of Medicus and QuadraMed have agreed (except to the extent expressly
contemplated by the Merger Agreement or as consented to in writing by the
other), to carry on its and its subsidiaries' business in the usual, regular and
ordinary course in substantially the same manner as heretofore conducted, to pay
and to cause its subsidiaries to pay debts and taxes when due subject to good
faith disputes over such debts or taxes, to pay or perform other obligations
when due, and to use all reasonable efforts consistent with past practice and
policies to preserve intact its and its subsidiaries' present business
organizations, use its best efforts consistent with past practice to keep
available the services of its and its subsidiaries' present officers and key
employees and use its best efforts consistent with past practice to preserve its
and its subsidiaries' relationships with customers, suppliers, distributors,
licensors, licensees, and others having business dealings with it or its
subsidiaries, to the end that its and its subsidiaries' goodwill and ongoing
businesses shall be unimpaired at the Effective Time. Each of Medicus and
QuadraMed have agreed to promptly notify the other of any event or occurrence
not in the ordinary course of its or its subsidiaries' business, and of any
event which could have a material adverse effect on the financial condition,
business or results of operations of such entity ("Material Adverse Effect").
QuadraMed may negotiate and consummate acquisitions of businesses or assets
without providing notice to or obtaining the consent of Medicus.
 
     Except as contemplated by the Merger Agreement, neither Medicus nor
QuadraMed shall do, cause or permit any of the following, or allow, cause or
permit any of its subsidiaries to do, cause or permit any of the following,
without the prior written consent of the other: (i) amend its Certificate of
Incorporation or Bylaws; (ii) declare or pay any dividends on or make any other
distributions (whether in cash, stock or property) in respect of any of its
capital stock, or split, combine or reclassify any of its capital stock or issue
or authorize the issuance of any other securities in respect of, in lieu of or
in substitution for shares of its capital stock, or repurchase or otherwise
acquire, directly or indirectly, any shares of its capital stock except from
former employees, directors and consultants in accordance with agreements
providing for the repurchase of shares in connection with any termination of
service to it or its subsidiaries; or (iii) take, or agree in writing or
otherwise to take, any of the foregoing actions.
 
     During the period from the date of the Merger Agreement and continuing
until the earlier of the termination of the Merger Agreement or the Effective
Time, except as expressly contemplated by the Merger Agreement, Medicus shall
not do, cause or permit any of the following, or allow, cause or permit any of
its subsidiaries to do, cause or permit any of the following, without the prior
written consent of QuadraMed, which consent shall not be unreasonably withheld:
(i) enter into any contract or commitment, or violate, amend or otherwise modify
or waive any of the terms of any of its contracts, other than in the ordinary
course of business consistent with past practice and in no event shall such
contract, commitment, amendment, modification or waiver be in excess of
$250,000; (ii) issue, deliver or sell or authorize or propose the issuance,
delivery or sale of, or purchase or propose the purchase of, any shares of its
capital stock or securities convertible into, or subscriptions, rights, warrants
or options to acquire, or other agreements or commitments
                                       59
<PAGE>   68
 
of any character obligating it to issue any such shares or other convertible
securities, other than the issuance of shares of Medicus Common Stock pursuant
to the exercise of stock options, warrants or other rights therefor outstanding
as of the date of the Merger Agreement, except pursuant to the Medicus 1997
Directors' Stock Option Plan as currently in effect; (iii) accelerate, amend or
change the period of exercisability or vesting of options or other rights
granted under its employee stock plans or director stock plans or authorize cash
payments in exchange for any options or other rights granted under any of such
plans; (iv) transfer to any person or entity any rights to its intellectual
property other than in the ordinary course of business consistent with past
practice; (v) enter into or amend any agreements pursuant to which any other
party is granted exclusive marketing or other exclusive rights of any type or
scope with respect to any of its products or technology; (vi) sell, lease,
license or otherwise dispose of or encumber any of its properties or assets
which are material, individually or in the aggregate, to its and its
subsidiaries' business, taken as a whole, except in the ordinary course of
business consistent with past practice; (vii) incur any indebtedness for
borrowed money or guarantee any such indebtedness or issue or sell any debt
securities or guarantee any debt securities of others; (viii) enter into any
operating lease in excess of an aggregate of $10,000; (ix) pay, discharge or
satisfy in an amount in excess of $10,000 in any one case or $100,000 in the
aggregate, any claim, liability or obligation (absolute, accrued, asserted or
unasserted, contingent or otherwise) arising other than in the ordinary course
of business, other than the payment, discharge or satisfaction of liabilities
reflected or reserved against in its financial statements; (x) make any capital
expenditures, capital additions or capital improvements except in the ordinary
course of business and consistent with past practice; (xi) materially reduce the
amount of any material insurance coverage provided by existing insurance
policies; (xii) adopt or amend any employee benefit or stock purchase or option
plan, or hire any new director level or officer level employee (except that it
may hire a replacement for any current director level or officer level employee
if it first provides QuadraMed advance notice regarding such hiring decision),
pay any special bonus or special remuneration to any employee or director, or
increase the salaries or wage rates of its employees; (xiii) grant any severance
or termination pay to any director or officer or to any other employee except
payments made pursuant to standard written agreements outstanding on the date of
the Merger Agreement or grants which are made in the ordinary course of business
in accordance with its standard past practice; (xiv) commence a lawsuit other
than for the routine collection of bills, in such cases where it in good faith
determines that failure to commence suit would result in the material impairment
of a valuable aspect of its business, provided that it consults with QuadraMed
prior to the filing of such a suit, or for a breach of the Merger Agreement;
(xv) acquire or agree to acquire by merging or consolidating with, or by
purchasing a substantial portion of the assets of, or by any other manner, any
business or any corporation, partnership, association or other business
organization or division thereof, or otherwise acquire or agree to acquire any
assets which are material, individually or in the aggregate, to its and its
subsidiaries' business, taken as a whole, or acquire or agree to acquire any
equity securities of any corporation, partnership, association or business
organization; (xvi) other than in the ordinary course of business, make or
change any material election in respect of taxes, adopt or change any accounting
method in respect of taxes, file any material tax return or any amendment to a
material tax return, enter into any closing agreement, settle any claim or
assessment in respect of taxes, or consent to any extension or waiver of the
limitation period applicable to any claim or assessment in respect of taxes;
(xvii) fail to give all notices and other information required to be given to
the employees of Medicus, any collective bargaining unit representing any group
of employees of Medicus, and any applicable government authority under the WARN
Act, the National Labor Relations Act, the Internal Revenue Code, the
Consolidated Omnibus Budget Reconciliation Act, and other applicable law in
connection with the transactions provided for in the Merger Agreement; (xviii)
revalue any of its assets, including without limitation writing down the value
of inventory or writing off notes or accounts receivable other than in the
ordinary course of business; or (xix) take or agree in writing or otherwise to
take, any of the foregoing actions.
 
COVENANTS
 
     Each of QuadraMed and Medicus will give the other access throughout the
period prior to the Effective Time, with regard to such party and its respective
subsidiaries, to its properties, books, contracts, commitments, records and
personnel. QuadraMed and Medicus have further agreed to prepare and file with
the Commission the Registration Statement of which this Proxy
Statement/Prospectus is a part, with respect to
 
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<PAGE>   69
 
the QuadraMed Common Stock to be issued in connection with the Merger and to
make all necessary filings with respect to the transactions contemplated by the
Merger under applicable state securities laws.
 
     QuadraMed has agreed to vote or cause to be voted all shares of Medicus
Common Stock owned by QuadraMed in favor of the Merger, which shares constitute
approximately 56.7% of the outstanding capital stock of Medicus.
 
     Medicus shall use its best efforts to deliver or cause to be delivered to
QuadraMed from those persons who may be deemed "Affiliates" of Medicus within
the meaning of Rule 144 promulgated under the Securities Act an executed
Affiliate Agreement.
 
     Each of QuadraMed and Medicus has agreed to use its reasonable best efforts
to effectuate the transactions contemplated by the Merger Agreement and to
fulfill and cause to be fulfilled the conditions to closing under the Merger
Agreement.
 
EFFECT ON EMPLOYEE BENEFIT PLANS
 
     For purposes of QuadraMed employee benefit plans, Medicus employees will
receive full credit for years of service with Medicus.
 
NO SOLICITATION
 
     Medicus and its subsidiaries and the officers, directors, employees or
other agents of Medicus and its subsidiaries will not, directly or indirectly,
(i) take any action to solicit, initiate or encourage any Takeover Proposal (as
defined below) or (ii) subject to the terms of the immediately following
sentence, engage in negotiations with, or disclose any nonpublic information
relating to Medicus or any of its subsidiaries to, or afford access to the
properties, books or records of Medicus or any of its subsidiaries to, any
person that has advised Medicus that it may be considering making, or that has
made, a Takeover Proposal; provided, however, that nothing shall prohibit
Medicus' Board of Directors from taking and disclosing to Medicus' stockholders
a position with respect to a tender offer pursuant to Rules 14d-9 and 14e-2
promulgated under the Exchange Act. Notwithstanding the immediately preceding
sentence, if an unsolicited Takeover Proposal, or an unsolicited written
expression of interest that can reasonably be expected to lead to a Takeover
Proposal, shall be received by the Board of Directors of Medicus, then, to the
extent the Board of Directors of Medicus believes in good faith (after
consultation with its financial advisor) that such Takeover Proposal would, if
consummated, result in a transaction more favorable to Medicus' stockholders
from a financial point of view than the Merger (any such more favorable Takeover
Proposal being referred to as a "Superior Proposal") and the Board of Directors
of Medicus determines in good faith after consultation with outside legal
counsel that it is necessary for the Board of Directors of Medicus to comply
with its fiduciary duties to stockholders under applicable law, Medicus and its
officers, directors, employees, investment bankers, financial advisors,
attorneys, accountants and other representatives retained by it may furnish in
connection therewith information and take such other actions as are consistent
with the fiduciary obligations of Medicus' Board of Directors, and such actions
shall not be considered a breach of the Merger Agreement, provided that in each
such event Medicus notifies QuadraMed of such determination by the Medicus Board
of Directors and provides QuadraMed with a true and complete copy of the
Superior Proposal received from such third party, if the Superior Proposal is in
writing, or a complete written summary thereof, if it is not in writing, and
provides QuadraMed with all documents containing or referring to non-public
information of Medicus that are supplied to such third party; provided further,
that (A) the Board of Directors of Medicus has determined, with the advice of
Medicus' investment bankers, that such third party is capable of making a
Superior Proposal upon satisfactory completion of such third party's review of
the information supplied by Medicus, (B) the third party has stated that it
intends to make a Superior Proposal, (C) Medicus may not provide any non-public
information to any such third party if it has not prior to the date thereof
provided such information to QuadraMed or QuadraMed's representatives, (D)
Medicus notifies QuadraMed in advance of any disclosure of non-public
information to any such third party, with a description of the information
proposed to be disclosed, and (E) Medicus provides such non-public information
pursuant to a non-disclosure agreement at least as restrictive as the existing
confidentiality agreement between QuadraMed and Medicus. Medicus will
 
                                       61
<PAGE>   70
 
promptly notify QuadraMed after receipt of any Takeover Proposal or any notice
that any person is considering making a Takeover Proposal or any request for
non-public information relating to Medicus or any of its subsidiaries or for
access to the properties, books or records of Medicus or any of its subsidiaries
by any person that has advised Medicus that it may be considering making, or
that has made, a Takeover Proposal and will keep QuadraMed fully informed of the
status and details of any such Takeover Proposal, notice, request, or any
correspondence or communications related thereto and shall provide QuadraMed
with a true and complete copy of such Takeover Proposal, notice, or request or
correspondence or communications related thereto, if it is in writing, or a
complete written summary thereof, if it is not in writing. A "Takeover Proposal"
means any offer or proposal for, or any indication of interest in, a merger or
other business combination involving Medicus or any of its subsidiaries or the
acquisition of any significant equity interest in, or a significant portion of
the assets of, Medicus or any of its subsidiaries, other than the transactions
contemplated by the Merger Agreement.
 
INDEMNIFICATION
 
     After the Effective Time, QuadraMed will, and will cause the Surviving
Corporation to, indemnify and hold harmless the present and former officers,
directors, employees and agents of Medicus (the "Indemnified Parties") in
respect of acts or omissions occurring on or prior to the Effective Time to the
extent permitted by law and to the extent provided under Medicus' Amended and
Restated Certificate of Incorporation and Bylaws or any indemnification
agreement with Medicus' officers and directors to which Medicus is a party, in
each case in effect on the date of the Merger Agreement. Such indemnification
shall be subject to any limitation imposed from time to time under applicable
law. Without limitation of the foregoing, in the event any such Indemnified
Party is or becomes involved in any capacity in any action, proceeding or
investigation in connection with any matter relating to the Merger Agreement or
the transactions contemplated thereby occurring on or prior to the Effective
Time, QuadraMed shall, or shall cause the Surviving Corporation to, pay as
incurred such Indemnified Party's reasonable legal and other expenses (including
the cost of any investigation and preparation) incurred in connection therewith
to the extent permitted by law and to the extent provided under Medicus' Amended
and Restated Certificate of Incorporation and Bylaws or the indemnification
agreement with such Indemnified Party.
 
     For two years after the Effective Time, QuadraMed will, or will cause the
Surviving Corporation to, use its best efforts to provide officers' and
directors' liability insurance in respect of acts or omissions occurring on or
prior to the Effective Time covering each such person currently covered by
Medicus' officers' and directors' liability insurance policy on terms
substantially similar to those of such policy in effect on the date hereof.
QuadraMed shall not be obligated to, or to cause the Surviving Corporation to,
pay premiums in excess of 150% of the amount per annum Medicus paid in its last
full fiscal year, and if the Surviving Corporation is unable to obtain the
required insurance, it shall obtain as much comparable insurance as possible for
an annual premium equal to such maximum amount.
 
     To the extent there is any claim, action, suit, proceeding or investigation
(whether arising before or after the Effective Time) against an Indemnified
Party that arises out of or pertains to any action or omission in his or her
capacity as a director, officer, employee, fiduciary or agent of Medicus
occurring prior to the Effective Time, or arises out of or pertains to the
transactions contemplated by the Merger Agreement for a period of two years
after the Effective Time (whether arising before or after the Effective Time),
such Indemnified Party shall be entitled to be represented by counsel and
following the Effective Time (i) any counsel retained by the Indemnified Parties
shall be reasonably satisfactory to the Surviving Corporation and QuadraMed,
(ii) the Surviving Corporation and QuadraMed shall pay the reasonable fees and
expenses of such counsel, promptly after statements therefor are received and
(iii) the Surviving Corporation and QuadraMed will cooperate in the defense of
any such matter. However, neither the Surviving Corporation nor QuadraMed shall
be liable for any settlement effected without its written consent (which consent
shall not be unreasonably withheld); and in the event that any claim or claims
for indemnification are asserted or made within such two-year period, all rights
to indemnification in respect of any such claim or claims shall continue until
the disposition of any and all such claims. The Indemnified Parties as a group
may retain only one law firm to
 
                                       62
<PAGE>   71
 
represent them with respect to any single action unless a conflict on any
significant issue exists between the positions of any two or more Indemnified
Parties.
 
TERMINATION; EXPENSES; AMENDMENT; WAIVER
 
     At any time prior to the Effective Time, whether before or after approval
of the matters presented in connection with the Merger by the stockholders of
Medicus, the Merger Agreement may be terminated: (i) by mutual consent of
QuadraMed and Medicus; (ii) by either QuadraMed or Medicus, if, without fault of
the terminating party, the closing of the Merger shall not have occurred on or
before May 1, 1998 (or such later date as may be agreed upon in writing by the
parties); (iii) by QuadraMed, if Medicus shall breach any of its
representations, warranties or obligations under the Merger Agreement and such
breach shall not have been cured within ten business days of receipt by Medicus
of written notice of such breach or the Board of Directors of Medicus shall have
withdrawn or modified its recommendation of the Merger Agreement or the Merger
in a manner adverse to QuadraMed or shall have resolved to do any of the
foregoing; (iv) by Medicus, if QuadraMed shall breach any of its
representations, warranties or obligations under the Merger Agreement and such
breach shall not have been cured within ten days following receipt by QuadraMed
of written notice of such breach; or (v) by either QuadraMed or Medicus if any
permanent injunction or other order of a court or other competent authority
preventing the consummation of the Merger shall have become final and
nonappealable or if any required approval of the stockholders of Medicus shall
not have been obtained by reason of the failure to obtain the required vote upon
a vote held at a duly held meeting of stockholders or at any adjournment
thereof.
 
     Whether or not the Merger is consummated, all costs and expenses incurred
in connection with the Merger Agreement and the transactions contemplated
thereby (including, without limitation, the fees and expenses of its advisors,
accountants and legal counsel) shall be paid by the party incurring such
expenses, except that expenses incurred in connection with printing this Proxy
Statement/Prospectus and the Registration Statement, registration and filing
fees incurred in connection with this Proxy Statement/ Prospectus and the
Registration Statement, the listing of additional shares with the Nasdaq
National Market, and fees, costs and expenses associated with compliance with
applicable state securities laws in connection with the Merger shall be paid by
QuadraMed.
 
     In the event that QuadraMed shall terminate the Merger Agreement because
(i) Medicus has breached any representation, warranty or obligation under the
Merger Agreement and such breach is not cured as described above, (ii) the
Medicus Board of Directors has withdrawn or modified its recommendation of the
Merger Agreement or the Merger in a manner adverse to QuadraMed or (iii) the
Medicus stockholders do not approve the Merger (but only if all of the Medicus
Common Stock owned by QuadraMed is voted in favor of the Merger), Medicus shall
promptly reimburse QuadraMed for all of the out-of-pocket costs and expenses
incurred by QuadraMed in connection with the Merger Agreement and the
transactions contemplated thereby (including, without limitation, the fees and
expenses of its advisors, accountants and legal counsel).
 
     The boards of directors of QuadraMed and Medicus may cause the Merger
Agreement to be amended at any time by execution of an instrument in writing
signed on behalf of each of QuadraMed and Medicus; provided that an amendment
made subsequent to adoption of the Merger Agreement by the stockholders of
Medicus or Merger Sub shall not (i) alter or change the amount or kind of
consideration to be received on conversion of the Medicus Common Stock, (ii)
alter or change any term of the Certificate of Incorporation of the Surviving
Corporation to be effected by the Merger, or (iii) alter or change any of the
terms and conditions of the Merger Agreement if such alteration or change would
adversely affect the holders of Medicus Common Stock or Merger Sub common stock.
 
     At any time prior to the Effective Time any party to the Merger Agreement
may, to the extent legally allowed, (i) extend the time for the performance of
any of the obligations or other acts of the other parties thereto, (ii) waive
any inaccuracies in the representations and warranties made to such party
contained therein or in any document delivered pursuant thereto and (iii) waive
compliance with any of the agreements or conditions for the benefit of such
party contained therein. Any agreement on the part of a party to the Merger
Agreement to any such extension or waiver shall be valid only if set forth in an
instrument in writing signed on behalf of such party.
 
                                       63
<PAGE>   72
 
   
                UNAUDITED CONDENSED COMBINED PRO FORMA FINANCIAL
    
   
                      INFORMATION OF QUADRAMED AND MEDICUS
    
 
   
     On November 9, 1997, QuadraMed Corporation (the "Company" or "QuadraMed")
and Medicus Systems Corporation ("Medicus") entered into an Agreement and Plan
of Reorganization (the "Merger Agreement"), whereby a wholly owned subsidiary of
QuadraMed will be merged with and into Medicus (the "Merger"). As a result of
the Merger, Medicus will become a wholly owned subsidiary of QuadraMed. On
November 9, 1997, QuadraMed and certain stockholders ("Selling Stockholders") of
Medicus entered into Stock Purchase Agreements pursuant to which QuadraMed
acquired 56.7% of the outstanding Medicus Common Stock. The aggregate purchase
price paid by QuadraMed to the Selling Stockholders was approximately $23.3
million in cash and warrants to purchase an aggregate of 972,220 shares of
QuadraMed Common Stock. The warrants entitle the Selling Stockholders to acquire
0.3125 shares of QuadraMed Common Stock for each share of Medicus Common Stock
sold at a price of $24.00 per share (the closing price of the QuadraMed Common
Stock on the last trading day prior to the execution of the Stock Purchase
Agreements), subject to certain adjustments and certain limitations. If at the
Effective Time of the Merger, the QuadraMed Stock Value (the price per share
equal to the average of the closing prices of QuadraMed Common Stock during the
fifteen (15) days prior to the second day prior to the date of the Special
Meeting) exceeds $27.60, then the number of shares of QuadraMed Common Stock
issuable upon the exercise of the warrants shall be adjusted downward such that
the number of shares of QuadraMed Common Stock issuable upon the exercise of a
warrant shall be X, where X is equal to the Warrant Value (the product obtained
by multiplying $3.60 by the initial number of shares of QuadraMed Stock issuable
under the Warrants) divided by the difference of (i) the QuadraMed Stock Value
minus (ii) $24.00.
    
 
   
     Upon approval of the Merger Agreement, each share of Medicus Common Stock
issued and outstanding (other than any shares of Medicus Common Stock owned by
QuadraMed) will be cancelled and extinguished and be converted automatically
into the right to receive (i) $7.50 in cash, without interest (the "Per Share
Cash Amount"); or (ii) 0.3125 shares of QuadraMed Common Stock (the "Exchange
Ratio"), subject to adjustment and limitations as described below, or (iii) a
combination of shares of QuadraMed Common Stock and cash. The Exchange Ratio is
subject to the following adjustments: (1) if the QuadraMed Stock Value (as
defined below) exceeds $27.60, then the Exchange Ratio shall be the quotient
obtained by dividing (A) $8.625 by (B) the QuadraMed Stock Value, and (2) if the
QuadraMed Stock Value is less than $24.00, then the Exchange Ratio shall be the
quotient obtained by dividing (A) $7.50 by (B) the QuadraMed Stock Value.
Additionally, if the QuadraMed Stock Value is less than $20.40, then QuadraMed
may, at its sole discretion, elect to have all or any portion of the shares of
Medicus Common Stock converted into the Per Share Cash Amount (the "QuadraMed
Cash Election"). In the event of a QuadraMed Cash Election in which less than
all of the outstanding shares of Medicus Common Stock will be converted into
cash, the shares of Medicus Common Stock to be converted into cash as a result
of the QuadraMed Cash Election will be selected pro rata according to the number
of shares with respect to which a Stock Election has been made.
    
 
   
     On October 10, 1997, QuadraMed completed a public offering of 3,467,000
shares of Common Stock. The net proceeds of the offering to QuadraMed were $58.0
million. The shares issued in and the net proceeds of the offering are included
in the unaudited condensed combined pro forma financial statements.
    
 
   
     The following unaudited pro forma condensed combined financial statements
give effect to the merger of QuadraMed and Medicus. The unaudited pro forma
condensed combined balance sheet has been prepared as if the acquisition, which
will be accounted for as a purchase of Medicus by QuadraMed, and the Common
Stock offering were consummated as of September 30, 1997. The pro forma balance
sheet combines QuadraMed's balance sheet as of September 30, 1997 and the
balance sheet of Medicus as of August 31, 1997.
    
 
   
     The aggregate purchase price of $51.0 million has been allocated to the
acquired assets and liabilities of Medicus. Included in the pro forma purchase
price are the cash payments to the Selling Stockholders of $23.3 million,
anticipated payments to the remaining Medicus shareholders of $17.9 million, the
value of the options and warrants issued of $7.6 million and the direct
transaction costs of $2.2 million. The cash payments are based on the number of
Medicus shares outstanding using $7.50 per share. The options and warrants were
    
 
                                       64
<PAGE>   73
 
   
valued based on their fair value using the Black-Scholes model. The Company
allocated $41.5 million to purchased technology, $38.5 million of which
represented in-process research and development. The $38.5 million will be
expensed as the technology had not yet reached technological feasibility and
does not have alternative future uses.
    
 
   
     The unaudited pro forma condensed combined statements of operations for the
year ended December 31, 1996 give effect to the merger as if the acquisition was
completed at the beginning of the year and combines QuadraMed's statement of
operations as of December 31, 1996 with the statement of operations for Medicus
for the twelve months ended November 30, 1996. The unaudited pro forma condensed
combined statements of operations for the nine months ended September 30, 1997
give effect to the merger as if the acquisition was completed at the beginning
of the period and combines QuadraMed's statement of operations as of September
30, 1997 with the Medicus statement of operations for the nine months ended
August 31, 1997. In accordance with the rules for the preparation of pro forma
financial statements, these statements do not include the effect of the
approximately $38.5 million non-recurring charge for in-process research and
development, as such charges represent a material non-recurring charge.
    
 
   
     This method of combining historical financial statements for the
preparation of the pro forma condensed combined statements is for presentation
only. Actual statements of operations of the companies will be combined from the
closing date of the acquisition with no retroactive restatements. The unaudited
pro forma condensed combined financial statements are provided for illustrative
purposes only and are not necessarily indicative of the combined financial
position or combined results of operations that would have been reported had the
Merger occurred on the dates indicated, nor do they represent a forecast of the
combined financial position or results of operations for any future period. The
unaudited pro forma condensed combined financial statements should be read in
conjunction with the historical financial statements and accompanying notes for
QuadraMed and Medicus incorporated into this Proxy Statement/Prospectus by
reference. See "INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE."
    
 
                                       65
<PAGE>   74
 
   
                             QUADRAMED CORPORATION
    
                        AND MEDICUS SYSTEMS CORPORATION
                  PRO FORMA CONDENSED COMBINED BALANCE SHEETS
                                 (IN THOUSANDS)
                                  (UNAUDITED)
 
                                     ASSETS
 
   
<TABLE>
<CAPTION>
                                                                      AUGUST 31,
                                                    SEPTEMBER 30,        1997
                                                        1997        ---------------
                                                    -------------     HISTORICAL
                                                     HISTORICAL     MEDICUS SYSTEMS    PRO FORMA     PRO FORMA
                                                      QUADRAMED     CORPORATION(A)    ADJUSTMENTS    COMBINED
                                                    -------------   ---------------   -----------    ---------
<S>                                                 <C>             <C>               <C>            <C>
CURRENT ASSETS:
  Cash and cash equivalents.......................    $  6,928          $   372          14,530(f)   $ 21,830
  Restricted cash.................................          33               --                            33
  Accounts receivable, net........................      11,418            8,615            (753)(k)    19,280
  Prepaid and deferred income taxes...............          --            2,025          (2,025)(k)        --
  Prepaid and other...............................         690              607                         1,297
                                                      --------          -------        --------      --------
         Total current assets.....................      19,069           11,619                        42,440
EQUIPMENT, at cost:
  Equipment.......................................       5,589            7,473                        13,062
  Accumulated depreciation........................      (2,346)          (5,331)             --        (7,677)
                                                      --------          -------        --------      --------
    Equipment, net................................       3,243            2,142              --         5,385
Long-term investment..............................       3,700               --                         3,700
CAPITALIZED SOFTWARE DEVELOPMENT COSTS, net.......       1,253            2,938          (2,938)(k)     1,253
ACQUIRED SOFTWARE, net............................       1,374               --           3,000         4,374
ACQUIRED INTANGIBLE ASSETS, net...................      10,234               --          13,500(g)     23,734
INSTALLMENT ACCOUNTS RECEIVABLE...................          --              537                           537
DEFERRED INCOME TAXES.............................          --            2,764          (2,764)           --
OTHER.............................................         232               --                           232
                                                      --------          -------        --------      --------
                                                      $ 39,105          $20,000                      $ 81,655
                                                      ========          =======                      ========
LIABILITIES & STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Notes Payable...................................    $    300          $ 1,000                      $  1,300
  Current maturities of capital lease
    obligations...................................         175               --                           175
  Accounts payable................................       1,029              485                         1,514
  Accrued liabilities.............................       2,584            1,755           6,433(k)     10,772
  Accrued restructuring charge....................          --            1,876          (1,876)(k)        --
  Deferred revenue................................       1,341                                          6,198
                                                      --------          -------                      --------
         Total current liabilities................       5,429            9,973                        19,959
CAPITAL LEASE OBLIGATIONS, less current portion...         320               --                           320
Notes payable, less current portion...............       1,156            1,000                         2,156
                                                      --------          -------        --------      --------
         Total Liabilities........................       6,905           10,973           4,557        22,435
STOCKHOLDERS' EQUITY
  Preferred stock.................................          --              500            (500)(h)        --
  Common stock....................................          61               65             (32)(h)        94
  Deferred compensation...........................         (54)              --                           (54)
  Additional paid-in capital......................      44,485           23,039          42,448(h)    109,972
  Less treasury stock.............................          --           (6,187)          6,187(h)         --
  Accumulated deficit.............................     (12,292)          (8,390)        (30,110)(h)   (50,792)
                                                      --------          -------        --------      --------
         Total Stockholders' Equity (Deficit).....      32,200            9,027                        59,220
                                                      --------          -------                      --------
                                                      $ 39,105          $20,000                      $ 81,655
                                                      ========          =======                      ========
</TABLE>
    
 
                                       66
<PAGE>   75
 
   
             QUADRAMED CORPORATION AND MEDICUS SYSTEMS CORPORATION
    
 
              PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
                                  (UNAUDITED)
   
<TABLE>
<CAPTION>
 
                                                                  NINE MONTHS
                                                                     ENDED
                                                                AUGUST 31, 1997
                                     NINE MONTHS ENDED          ---------------
                                    SEPTEMBER 30, 1997
                              -------------------------------     HISTORICAL
                              HISTORICAL         PRIOR          MEDICUS SYSTEMS    PRO FORMA     PRO FORMA
                              QUADRAMED     ACQUISITIONS(B)     CORPORATION(C)    ADJUSTMENTS    COMBINED
                              ----------   ------------------   ---------------   -----------    ---------
<S>                           <C>          <C>                  <C>               <C>            <C>
Revenues:
  Licenses..................   $14,849               (4)            $13,530                        28,375
  Services..................     7,300            4,332                  --                        11,632
                               -------          -------             -------         -------       -------
         Total revenue......    22,149            4,328              13,530                        40,007
                               -------          -------             -------         -------       -------
Operating Expenses
  Cost of licenses..........     5,618               --               6,379                        11,997
  Cost of services..........     4,220            4,269                  --                         8,489
  General and
    administration..........     2,947              699               3,970                         7,616
  Sales and marketing.......     2,887              281               4,524                         7,692
  Research and
    development.............     2,227               --               2,843                         5,070
  Amortization of intangible
    assets..................       659              235                  --           1,900(i)      2,794
  Stock repurchase..........        --               --               1,690                         1,690
  Non-recurring start-up
    charges/restructuring
    charges.................     1,040               --               2,800                         3,840
                               -------          -------             -------         -------       -------
         Total operating
           expenses.........    19,598            5,484              22,206           1,900        49,188
                               -------          -------             -------         -------       -------
Income (loss) from
  operations................     2,551           (1,156)             (8,676)         (1,900)       (9,181)
                               -------          -------             -------         -------       -------
Interest expense (income)...      (505)              48                 (95)                         (552)
Other expense (income),
  net.......................        11               --                (167)                         (156)
Provision for income taxes
  (benefit).................       265               --              (3,184)                       (2,919)
                               -------          -------             -------         -------       -------
Net income (loss)...........   $ 2,780          $(1,204)            $(5,230)        $(1,900)      $(5,554)
                               =======          =======             =======         =======       =======
Net income (loss) per
  share.....................   $  0.37                                                            $ (0.56)
                               =======                                                            =======
Weighted average common and
  common equivalent
  shares(j).................     7,532                                                              9,938
                               =======                                                            =======
 
<CAPTION>
                                                                 TWELVE MONTHS
                                                                     ENDED
                                                                 NOVEMBER 30,
                                                                     1996
                                                                ---------------
 
                                    TWELVE MONTHS ENDED           (UNAUDITED)
                                     DECEMBER 31, 1996            HISTORICAL
                              -------------------------------       MEDICUS
                              HISTORICAL         PRIOR             SYSTEMSS        PRO FORMA     PRO FORMA
                              QUADRAMED     ACQUISITIONS(D)     CORPORATION(E)    ADJUSTMENTS    COMBINED
                              ----------   ------------------   ---------------   -----------    ---------
<S>                           <C>          <C>                  <C>               <C>            <C>
Revenues:
  Licenses..................   $16,223              (16)            $18,435                        34,642
  Services..................     2,865           12,447                  --                        15,312
                               -------          -------             -------         -------       -------
         Total revenue......    19,088           12,431              18,435                        49,954
                               -------          -------             -------         -------       -------
Operating Expenses
  Cost of licenses..........     7,294               --               7,782                        15,076
  Cost of services..........     2,683            9,706                  --                        12,389
  General and
    administration..........     3,221            2,343               5,390                        10,954
  Sales and marketing.......     2,434            1,414               5,625                         9,473
  Research and
    development.............     2,499               --               2,127                         4,626
  Amortization of intangible
    assets..................       460              807                  --           2,530(i)      3,797
  Stock repurchase..........
  Non-recurring start-up
    charges/restructuring
    charges.................        --              103               4,662                         4,765
                               -------          -------             -------         -------       -------
         Total operating
           expenses.........    18,591           14,373              25,586           2,530        61,080
                               -------          -------             -------         -------       -------
Income (loss) from
  operations................       497           (1,942)             (7,151)         (2,530)      (11,126)
                               -------          -------             -------         -------       -------
Interest expense (income)...       329               --                (703)                         (374)
Other expense (income),
  net.......................        15              317                  --                           332
Provision for income taxes
  (benefit).................        --              (41)             (2,698)                       (2,739)
                               -------          -------             -------         -------       -------
Net income (loss)...........   $   153          $(2,218)            $(3,750)        $(2,530)      $(8,345)
                               =======          =======             =======         =======       =======
Net income (loss) per
  share.....................   $  0.03                                                            $ (1.47)
                                                                                                  =======
Weighted average common and
  common equivalent
  shares(j).................     5,089                                                              5,682
                               =======                                                            =======
</TABLE>
    
 
                                       67
<PAGE>   76
 
             QUADRAMED CORPORATION AND MEDICUS SYSTEMS CORPORATION
 
                     NOTES TO PRO FORMA CONDENSED COMBINED
                   BALANCE SHEET AND STATEMENT OF OPERATIONS
                                  (UNAUDITED)
 
   
NOTE 1. PURCHASE PRICE
    
 
   
     The purchase price of the acquisition of Medicus is computed as follows:
    
 
   
<TABLE>
<S>                                                           <C>
Cash........................................................  $41,200
Warrants and employee stock options.........................    7,600
Direct transaction costs....................................    2,200
                                                              -------
                                                              $51,000
                                                              =======
</TABLE>
    
 
   
     The purchase price is allocated as follows:
    
 
   
<TABLE>
<S>                                                           <C>
Assets......................................................  $ 9,388
Equipment...................................................    2,142
In-process research and development.........................   38,500
Developed technology........................................    3,000
Liabilities assumed.........................................  (15,530)
Assembled work force........................................    2,000
Tradename...................................................    1,000
Customer list...............................................   10,000
Goodwill....................................................      500
                                                              -------
                                                              $51,000
                                                              =======
</TABLE>
    
 
   
NOTE 2. PRO FORMA ADJUSTMENTS
    
 
     Certain pro forma adjustments have been made to the accompanying pro forma
condensed combined balance sheet and statement of operations as described below:
 
          (a) Represents the historical combined balance sheet of Medicus as of
     August 31, 1997, because Medicus' fiscal year ends May 31.
 
          (b) Includes results of operations of Healthcare Revenue Management,
     Inc. ("HRM") for the eight months ended August 31, 1997, and the Synergy
     Companies ("Synergy") for the three months ended March 31, 1997, and
     related pro forma adjustments. Subsequent to August 31, 1997 and March 31,
     1997, the results of operations of HRM and Synergy, respectively, are
     included in the "Historical QuadraMed" column.
 
          (c) Represents historical results of operations for the nine months
     ended August 31, 1997.
 
          (d) Includes HRM and Synergy results of operations for the twelve
     months ended December 31, 1996 and the related pro forma adjustments.
 
          (e) Represents historical results of operations for the twelve months
     ended November 30, 1996.
 
   
          (f) Reflects the expected cash to be paid of approximately $43,470,000
     (cash payments include payments of $23,300,000 made to the Selling
     Stockholders in November 1997, a minimum payment of $17,900,000 in
     connection with the purchase of the remaining Medicus shares assuming
     Medicus stockholders elect to receive cash in the Merger, a $750,000 bonus
     payment to Patrick C. Sommers and $1,520,000 in professional fees) for the
     acquisition of Medicus, net of the proceeds of $58,000,000 from QuadraMed's
     public offering of common stock which closed on October 10, 1997.
    
 
   
          (g) Reflects the recording of acquired intangible assets and acquired
     software from the acquisition of Medicus of approximately$13,500,000 and
     $3,000,000, respectively.
    
                                       68
<PAGE>   77
 
   
          (h) Reflects the elimination of Medicus' stockholder's equity
     ($9,027,000) and the issuance of common stock from QuadraMed's public
     offering ($58,000,000) which closed on October 10, 1997 and an adjustment
     to retained earnings ($38,500,000) related to the write-off of in-process
     technology from the acquisition of Medicus and the valuation of QuadraMed
     options and warrants ($7,520,000) issued in exchange for outstanding
     Medicus options and warrants at the acquisition date.
    
 
   
          (i) Reflects the amortization of acquired intangible assets
     ($13,500,000) and acquired software ($3,000,000) which will be amortized on
     a straight line basis over the estimated life of seven and five years,
     respectively.
    
 
   
          (j) The table below presents the calculation of weighted average
     common and common equivalent shares:
    
 
   
<TABLE>
<CAPTION>
                                    NINE MONTHS ENDED         TWELVE MONTHS ENDED
                                   SEPTEMBER 30, 1997          DECEMBER 31, 1996
                                 -----------------------    -----------------------
                                 HISTORICAL                 HISTORICAL
                                 QUADRAMED     PRO FORMA    QUADRAMED     PRO FORMA
                                 ----------    ---------    ----------    ---------
<S>                              <C>           <C>          <C>           <C>
Weighted average shares........    6,176         6,176        1,920         1,920
Common stock equivalents.......    1,356            --        3,169            --
Pro forma shares...............       --         3,762           --         3,762
                                   -----         -----        -----         -----
                                   7,592         9,938        5,089         5,682
</TABLE>
    
 
   
     Pro forma shares represent 3,467,000 shares of common stock issued as a
     part of the public offering which closed on October 10, 1997, approximately
     182,000 shares of common stock issued in conjunction with the Synergy
     acquisition, and approximately 113,000 shares issued in conjunction with
     the HRM acquisition. Pro forma shares exclude all common stock equivalents,
     as common stock equivalents are anti-dilutive on a pro forma basis.
    
 
   
          (k) Reflects adjustments to the acquired net assets of Medicus.
    
 
                                       69
<PAGE>   78
 
                    CERTAIN INFORMATION CONCERNING QUADRAMED
 
     QuadraMed Corporation, a Delaware corporation ("QuadraMed"), develops,
markets and sells software products and services designed to enable health care
providers and payors to increase operational efficiency, improve cash flow,
measure the cost of care and effectively administer managed care contracts.
QuadraMed's suite of products is an integrated offering of electronic data
interchange ("EDI"), financial management and decision support solutions for
both providers and payors. In addition, QuadraMed provides business office
outsourcing and cash flow management services.
 
     Electronic Data Interchange. These products enable the editing and
formatting of all claims submitted to payors to help ensure accuracy and
completeness, which results in more efficient reimbursement of third party
claims. QuadraMed collects and utilizes detailed clinical and financial
information from customers who license its EDI products. This data, which is
supplemented with similar, publicly-available information, forms the basis of
QuadraMed's proprietary databases for its decision support products.
 
     Financial Management Products. These products utilize the enhanced data
stream created by QuadraMed's EDI products to allow providers to track payor
contract terms and review medical billing information to ensure that bills are
properly coded and include all services rendered. These capabilities facilitate
a provider's ability to obtain timely and accurate reimbursement and to
administer and measure the profitability of managed care contracts. Further,
QuadraMed offers a product that is designed to improve the ability of health
care providers to prevent Medicare and Medicaid fraud and abuse by identifying
potentially fraudulent coding in their medical bills. In addition, QuadraMed's
electronic document imaging products allow its customers to improve work flow
and move toward a paperless office environment.
 
     Decision Support Products. These products include database analysis
software and national and regional benchmark data that enable customers to
perform clinical, financial and marketing analyses. These products utilize the
enhanced data stream created by QuadraMed's EDI and financial management
products to build proprietary databases that enable providers to measure more
accurately the resources consumed in the provision of care and to compare
clinical outcomes against the associated costs.
 
     Business Office Outsourcing and Cash Flow Management Services. These
services are offered to health care providers, many of which are recognizing the
value of outsourcing their business office operations to reduce costs, increase
cash flow and improve operating efficiencies. QuadraMed believes that it
possesses a significant advantage in the provision of outsourcing services due
to its ability to use its own QuanTIM(R) suite of software products and its
centralized cash flow management operations.
 
     QuadraMed's executive offices are located at 80 East Sir Francis Drake
Blvd., Suite 2A, Larkspur, California 94939 and its telephone number is (415)
461-7725.
 
                     CERTAIN INFORMATION CONCERNING MEDICUS
 
     Medicus develops, markets, and supports a family of specialized integrated
software products utilized by health care financial administrators, physicians
and nursing executives, health information and other administrative departments
to capture, structure and analyze clinical, operational and financial
information. Medicus' specialized software applications and services allow these
professionals to measure, monitor and manage organizational performance and
optimize outcomes. Medicus also provides product-related maintenance and support
services. Clients of Medicus include hospitals, academic medical centers,
managed care organizations, community care networks, integrated health systems,
primary care and multi-specialty physician groups, government agencies, and
other organizations.
 
     Medicus offers products and services in the following categories:
 
   
     Clinical Data Systems (CDS). CDS is an integrated encoding system and data
repository that enables the health care provider to classify, capture, validate,
and analyze clinical data. This expert encoding system aids in optimizing
prospective payment reimbursement for both inpatient and ambulatory care
services. It captures and validates clinical indicators, severity and risk
factors as well as patient demographics data, diagnoses and procedures. By
validating data at the point of capture and linking it to a Diagnosis Related
    
                                       70
<PAGE>   79
 
Group, the CDS creates an accurate and complete data repository that provides
the information required to manage costs and improve clinical effectiveness and
service efficiency.
 
     Decision Support Systems. This division offers two lines of products,
Enterprise Analyst and Resource Case Management. Enterprise Analyst is a fully
integrated, enterprise wide decision support system application designed to
allow Medicus' customers to maximize the principal components of value: quality,
outcomes and cost containment. Resource Case Management provides case managers
and other personnel the ability to evaluate and manage patient care resources on
a daily basis.
 
     Patient Focused System. This division's main product is InterAct 2000,
which is a modular system of software tools and methodologies designed to manage
patient care resource utilization through workload measurement, staffing against
budget, cost and productivity reporting and employer scheduling. InterAct 2000
includes two integrated modules, the Workload/Productivity module which uses an
organization's own financial and quality of care objectives to generate
assessments of workload and staffing needs against the department's resource
utilization budget, and the Personnel/Scheduler module which creates balanced
staff schedules based on a specific scheduling algorithm and a set of user
defined rules.
 
     Maintenance and Support Services. Medicus provides training and support
services during client implementation and thereafter, as required. Maintenance
and support services include software updates, enhancements and services which
are purchased by substantially all of Medicus' clients under renewable annual
contracts. Medicus maintains logging, notification, and follow-up procedures to
track client problems encountered in implementing and operating its products.
Medicus also conducts client conferences to exchange ideas regarding product
usage and product extensions. Management believes that these conferences are
valuable in gathering ideas for future products as well as enhancements to
Medicus' current product line.
 
     Medicus' executive offices are located at One Rotary Center, Suite 1111,
Evanston, Illinois 60201 and its telephone number is (847) 570-7500.
 
                        COMPARISON OF STOCKHOLDER RIGHTS
 
   
     The following is a summary of material differences between the rights of
holders of QuadraMed Common Stock and the rights of holders of Medicus Common
Stock.
    
 
     Each of QuadraMed and Medicus is organized under the laws of the State of
Delaware. The rights of QuadraMed stockholders are currently governed by the
Delaware General Corporation Law (the "DGCL") and the certificate of
incorporation and bylaws of QuadraMed (the "QuadraMed Charter" and the
"QuadraMed Bylaws," respectively). The rights of Medicus stockholders are
currently governed by the DGCL and the certificate of incorporation and bylaws
of Medicus (the "Medicus Charter" and the "Medicus Bylaws," respectively). Upon
consummation of the Merger, the rights of Medicus stockholders who become
stockholders of QuadraMed in the Merger will be governed by the DGCL, the
QuadraMed Charter and the QuadraMed Bylaws. The following are summaries of
certain differences between the current rights of QuadraMed and Medicus
stockholders.
 
     The following discussions are not intended to be complete and are qualified
by reference to the DGCL, the Quadramed Charter, the QuadraMed Bylaws, the
Medicus Charter and the Medicus Bylaws.
 
   
     Capital Stock. The total number of authorized shares of capital stock of
QuadraMed is 25,000,000 shares, consisting of 20,000,000 shares of Common Stock
with a par value of $.01 per share and 5,000,000 shares of Preferred Stock with
a par value of $.01 per share. The total number of authorized shares of capital
stock of Medicus is 11,000,500 shares, consisting of 10,000,000 shares of Common
Stock with a par value of $.01 per share, 1,000,000 shares of Preferred Stock
with a par value of $.01 per share and 500 shares of Voting Preferred Stock with
a par value of $1,000 per share.
    
 
   
     Special Meetings of Stockholders. The QuadraMed Bylaws provide that a
special meeting of the stockholders may be called only (i) by the Chairman of
the Board of Directors, (ii) by the Chairman or the Secretary at the written
request of a majority of the total number of Directors which the Corporation
would have if there were no vacancies, or (iii) by the holders of shares
entitled to cast not less than 10 percent of the
    
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<PAGE>   80
 
votes at such special meeting. The Medicus Bylaws provide that a Special Meeting
may be called by the President and shall be called by the President or Secretary
at the request in writing of a majority of the whole board of directors, or at
the request in writing of stockholders owning a majority of the capital stock of
the corporation outstanding and entitled to vote.
 
   
     Stockholder Proposals at Annual Meetings of Stockholders. The QuadraMed
Bylaws provide that to propose business to be transacted at an annual meeting, a
stockholder's notice must be received by QuadraMed not later than the close of
business on the 60th day nor earlier than the close of business on the 90th day
prior to the first anniversary of the preceding year's annual meeting; provided,
however, that in the event that no annual meeting was held in the previous year
or the date of the annual meeting has been changed by more than 30 days from the
date contemplated at the time of the previous year's proxy statement, notice by
the stockholder to be timely must be so received no earlier than the close of
business on the 90th day prior to such annual meeting and not later than the
close of business on the later of the 60th day prior to such annual meeting or,
in the event public announcement of the date of such annual meeting is first
made by QuadraMed fewer than 70 days prior to the date of such annual meeting,
the close of business on the 10th day following the day on which public
announcement of the date of such meeting is first mailed by QuadraMed. The
Medicus Bylaws do not contain any provisions with respect to stockholder
proposals at annual meetings. Stockholder proposals at annual meetings are,
therefore, governed by the provisions of Rule 14a-8(a)(3)(i) of Regulation 14A
under the Exchange Act. Pursuant to Rule 14a-8(a)(3)(i), a proposal to be
presented at an annual meeting shall be received at Medicus' principal executive
office not less than 120 calendar days in advance of the date of Medicus' proxy
statement released to security holders in connection with the previous year's
annual meeting of security holders, except that if no annual meeting was held in
the previous year or the date of the annual meeting has been changed by more
than 30 calendar days from the date contemplated at the time of the previous
year's proxy statement, a proposal shall be received by Medicus a reasonable
time before solicitation is made.
    
 
   
     Classification of Directors; Election of Directors. QuadraMed's Charter
provides for the classification of the QuadraMed Board of Directors into three
classes as nearly equal in number as possible, with one class being elected at
each annual meeting to a three year term. Neither the Medicus Charter nor the
Medicus Bylaws provides for such classification of directors. Directors for
Medicus are elected by a plurality vote at annual meetings of stockholders and
each director holds office until a successor is elected and qualified or until
the directors earlier resignation or removal.
    
 
   
     Removal of Directors. QuadraMed's Charter provides that directors may be
removed by the affirmative vote of the holders of at least 66 2/3% of the
combined voting power of all shares of the Corporation entitled to vote
generally in the election of directors, voting together as a single class.
Neither the Medicus Charter nor the Medicus Bylaws contain any provisions with
respect to the removal of directors and, therefore, removal of Medicus'
directors is governed by the DGCL. Pursuant to section 141 of the DGCL,
directors may be removed, with or without cause, by the affirmative vote of the
holders of a majority of the outstanding shares then entitled to vote at an
election of directors.
    
 
   
     Voting Rights Regarding Certain Business Combinations. QuadraMed's Charter
provides that any Business Combination (as defined therein) involving QuadraMed
and an Interested Stockholder (as defined therein) must be approved by the
affirmative vote of at least 66 2/3% of the combined voting power of all shares
of QuadraMed entitled to vote generally in the election of directors, voting
together as a single class. Such affirmative vote shall be required
notwithstanding the fact that no vote may be required, or that some lesser
percentage may be specified, by law or in any agreement with any national
securities exchange or otherwise. As defined in QuadraMed's Charter, a "Business
Combination" includes, among other things: (i) any merger or consolidation of
QuadraMed or any QuadraMed subsidiary with any Interested Stockholder or
affiliate or associate thereof; (ii) the sale, lease, exchange, mortgage,
pledge, transfer or other disposition to, or with, any Interested Stockholder or
affiliate or associate thereof, of any assets of QuadraMed or any QuadraMed
subsidiary constituting not less than five percent of the total assets of
QuadraMed, as reported in the consolidated balance sheet of QuadraMed as of the
end of the most recent quarter with respect to which such balance sheet has been
prepared; (iii) the issuance or transfer by QuadraMed or any QuadraMed
subsidiary of any securities of QuadraMed or any QuadraMed subsidiary to any
Interested Stockholder or affiliate or
    
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<PAGE>   81
 
   
associate thereof in exchange for cash, securities or property together
constituting not less than five percent of the total assets of QuadraMed, as
reported in the consolidated balance sheet of QuadraMed as of the end of the
most recent quarter with respect to which such balance sheet has been prepared;
(iv) the adoption of any plan or proposal for the liquidation or dissolution of
QuadraMed or any QuadraMed subsidiary with any Interested Stockholder or
affiliate or associate thereof; and (v) any reclassification of securities or
recapitalization of QuadraMed, or any merger or consolidation of QuadraMed with
any of its subsidiaries or any similar transaction which has the effect,
directly or indirectly, of increasing the percentage of the outstanding shares
of (a) any class of equity securities of QuadraMed or any QuadraMed subsidiary
or (b) any class of securities of QuadraMed or any QuadraMed subsidiary
convertible into equity securities of QuadraMed or any QuadraMed subsidiary,
represented by securities of such class which are directly or indirectly owned
by any Interested Stockholder or any affiliate or associate thereof and
"Interested Stockholder" means any person (other than QuadraMed or any QuadraMed
subsidiary) who or which, as of the record date for the determination of
stockholders entitled to notice of and to vote on such Business Combination, or
immediately prior to the consummation of any such transaction (i) is or was, at
any time within two years prior thereto, the beneficial owner, directly or
indirectly, of 15% or more of the then outstanding Voting Shares, or (ii) is an
"Affiliate" or "Associate" of QuadraMed and at any time within two years prior
thereto was the beneficial owner, directly or indirectly, of 15% or more of the
then outstanding "Voting Shares," or (iii) is an assignee of or has otherwise
succeeded to any shares of capital stock of QuadraMed which were at any time
within two years prior thereto beneficially owned by an Interested Stockholder,
if such assignment or succession shall have occurred in the course of a
transaction, or series of transactions, not involving a public offering within
the meaning of the Securities Act of 1933, as amended.
    
 
     The Medicus Charter does not contain any provisions with respect to a
business combination involving Medicus and an interested Stockholder and,
therefore, any such transaction will be governed by Section 203 of the DGCL.
Section 203 of the DGCL imposes restrictions on business combinations (as
defined therein) with interested stockholders (being any person who acquired 15%
or more of the Company's outstanding voting stock). In general, Medicus is
prohibited from engaging in business combinations with an interested
stockholder, unless (i) before such person became an interested stockholder, the
Board of Directors of Medicus approve the transaction in which the interested
stockholder became an interested stockholder or approved the business
combination; (ii) upon consummation of the transaction that resulted in the
stockholder becoming an interested stockholder, the interested stockholder owned
at least 85% of the voting stock of Medicus outstanding at the time the
transaction commenced (excluding for purposes of determining the number of
shares of outstanding stock held by directors who are also officers of Medicus
and by employee stock plans that do not provide employees with the rights to
determine confidentially whether shares held subject to the plan will be
tendered in a tender or exchange offer); or (iii) at or subsequent to the time
which such person became an interested stockholder, the business combination is
approved by the Board of Directors of Medicus and authorized at a meeting of
stockholders by the affirmative vote of the holders of two-thirds of the
outstanding voting stock of Medicus not owned by the interested stockholder.
Under Section 203, the restrictions described above also do not apply to certain
business combinations proposed by an interested stockholder following the
earlier of the announcement or notification of one of certain extraordinary
transactions involving Medicus and a person who had not been an interested
stockholder during the previous three years or who became an interested
stockholder with the approval of Medicus' Directors, if such extraordinary
transaction is approved or not opposed by a majority of the directors who are
directors prior to any person becoming an interested stockholder during the
previous three years or who were recommended for election or elected to succeed
such directors by a majority of such directors. By restricting the ability of
Medicus to engage in business combinations with an interested person, the
application of Section 203 to Medicus may provide a barrier to hostile or
unwanted takeovers.
 
   
     Bylaw Amendments. The QuadraMed Bylaws provide that the Bylaws may be
altered, amended or repealed or new Bylaws may be adopted by the affirmative
vote of the holders of at least 66 2/3% of the shares of the capital stock of
the corporation issued and outstanding and entitled to vote at any regular
meeting of stockholders, or at any special meeting of stockholders, provided
notice of such alteration, amendment, repeal or adoption of new bylaws shall
have been stated in the notice of such special meeting. The Medicus Bylaws
    
 
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<PAGE>   82
 
may be altered, amended or repealed by the affirmative vote of a majority of the
shares present in person or represented by proxy at any annual or any special
meeting of stockholders.
 
   
     Neither the Medicus Certificate nor the Bylaws of Medicus contain any
similar provision or provisions.
    
 
                              CERTAIN TRANSACTIONS
 
   
     John H. Austin, M.D., a director of QuadraMed, is the chief executive
officer of a limited partner of RHP. In connection with the approval of the RHP
Mergers by the QuadraMed board of directors, Dr. Austin disclosed this interest
and abstained from voting. See "SUMMARY -- Recent Developments."
    
 
                              DIVIDEND INFORMATION
 
     QuadraMed has never declared any cash dividends on the QuadraMed Common
Stock. QuadraMed currently intends to retain future earnings, if any, to fund
the development and growth of its business and does not anticipate paying any
cash dividends on the QuadraMed Common Stock in the foreseeable future. In
addition, QuadraMed's credit agreement contains provisions that restrict the
payment of dividends.
 
     Medicus' predecessor, Managed Care Solutions, Inc. (prior to March 1, 1996)
and Medicus (beginning March 1, 1996) declared quarterly dividends of $0.03 per
share in each of the quarters in fiscal years 1995 and 1996. Medicus has not
declared any dividends since the end of its 1996 fiscal year, and the Board of
Directors of Medicus has determined not to pay dividends on the Medicus Common
Stock for the foreseeable future. In addition, Medicus' credit agreement
prohibits the declaration or payment of dividends on the Medicus Common Stock.
 
                                 LEGAL MATTERS
 
     The validity of the Common Stock being offered hereby will be passed upon
for QuadraMed by Brobeck, Phleger & Harrison LLP, San Francisco, California.
 
                                    EXPERTS
 
     The audited consolidated financial statements and schedules of QuadraMed
included and incorporated by reference in this Proxy Statement/Prospectus and
elsewhere in the Registration Statement have been audited by Arthur Andersen
LLP, independent public accountants, as indicated in their reports with respect
thereto, and are included herein in reliance upon the authority of said firm as
experts in giving said reports.
 
     The audited consolidated financial statements of Medicus included and
incorporated by reference in this Proxy Statement/Prospectus and elsewhere in
the Registration Statement have been so included and incorporated in reliance on
the report of Price Waterhouse LLP, independent accountants, given on the
authority of said firm as experts in auditing and accounting.
 
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<PAGE>   83
 
                                                                         ANNEX A
 
                      AGREEMENT AND PLAN OF REORGANIZATION
 
     This AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is made and
entered into as of November 9, 1997, by and among QuadraMed Corporation, a
Delaware corporation ("QuadraMed"), and Medicus Systems Corporation, a Delaware
corporation ("Medicus").
 
                                    RECITALS
 
     A.  The Boards of Directors of Medicus and QuadraMed believe it is in the
best interests of their respective companies and the stockholders of their
respective companies that Medicus and a wholly owned subsidiary of QuadraMed to
be formed for the purposes hereof ("Merger Sub") combine into a single company
through the statutory merger of Merger Sub with and into Medicus (the "Merger")
and, in furtherance thereof, have approved the Merger.
 
     B.  Pursuant to the Merger, among other things, the outstanding shares of
Medicus Common Stock, $.01 par value ("Medicus Common Stock"), shall be
converted into shares of QuadraMed Common Stock, $.01 par value ("QuadraMed
Common Stock"), or cash, or a combination thereof, on the terms set forth
herein.
 
     C.  Medicus and QuadraMed desire to make certain representations and
warranties and other agreements in connection with the Merger.
 
     D.  Concurrent with the execution of this Agreement and as an inducement to
QuadraMed to enter into this Agreement, certain of the stockholders of Medicus
who in the aggregate beneficially own in excess of 50% of the outstanding Common
Stock of Medicus have on the date hereof entered into stock purchase agreements
(the "Stock Purchase Agreements") to sell the shares of Medicus' Common Stock
owned by such person in exchange for a cash payment and a warrant to purchase
QuadraMed Common Stock (the "Warrants").
 
     NOW, THEREFORE, in consideration of the covenants and representations set
forth herein, and for other good and valuable consideration, the parties agree
as follows:
 
                                   ARTICLE I
 
                                   THE MERGER
 
     1.1  The Merger. At the Effective Time (as defined in Section 1.2) and
subject to and upon the terms and conditions of this Agreement, a Certificate of
Merger to be filed in respect of the Merger (the "Certificate of Merger") and
the applicable provisions of the Delaware General Corporation Law ("DGCL"),
Merger Sub shall be merged with and into Medicus, the separate corporate
existence of Merger Sub shall cease and Medicus shall continue as the surviving
corporation. Medicus as the surviving corporation after the Merger is
hereinafter sometimes referred to as the "Surviving Corporation."
 
     1.2  Closing; Effective Time. The closing of the transactions contemplated
hereby (the "Closing") shall take place as soon as practicable after the
satisfaction or waiver of each of the conditions set forth in Article VI hereof
or at such other time as the parties hereto agree (the "Closing Date"). The
Closing shall take place at the offices of Brobeck, Phleger & Harrison LLP, One
Market, Spear Street Tower, San Francisco, California 94105, or at such other
location as the parties hereto agree. In connection with the Closing, the
parties hereto shall cause the Merger to be consummated by filing the
Certificate of Merger with the Secretary of State of the State of Delaware and
with the Recorder of the County in which the registered office of each of
Medicus and Merger Sub is located, in accordance with the relevant provisions of
the DGCL (the time of such filing being the "Effective Time").
 
     1.3  Effect of the Merger. At the Effective Time, the effect of the Merger
shall be as provided in this Agreement, the Certificate of Merger and the
applicable provisions of the DGCL. Without limiting the
 
                                       A-1
<PAGE>   84
 
generality of the foregoing, and subject thereto, at the Effective Time, all the
property, rights, privileges, powers and franchises of Medicus and Merger Sub
shall vest in the Surviving Corporation, and all debts, liabilities and duties
of Medicus and Merger Sub shall become the debts, liabilities and duties of the
Surviving Corporation.
 
     1.4  Certificate of Incorporation; Bylaws.
 
     (a) At the Effective Time, the Certificate of Incorporation of Merger Sub,
as in effect immediately prior to the Effective Time, shall be the Certificate
of Incorporation of the Surviving Corporation until thereafter amended as
provided by the DGCL and such Certificate of Incorporation.
 
     (b) The Bylaws of Merger Sub, as in effect immediately prior to the
Effective Time, shall be the Bylaws of the Surviving Corporation until
thereafter amended.
 
     1.5  Directors and Officers. At the Effective Time, the directors and
officers of Merger Sub shall become the directors and officers of the Surviving
Corporation, until their respective successors are duly elected or appointed and
qualified.
 
     1.6  Effect on Capital Stock. By virtue of the Merger and without any
action on the part of Merger Sub, Medicus or the holders of any of the following
securities, subject to the provisions of this Section 1.6:
 
          (a) Conversion of Medicus Common Stock. At the Effective Time, each
     share of Medicus Common Stock issued and outstanding immediately prior to
     the Effective Time (other than any shares of Medicus Common Stock to be
     canceled pursuant to Section 1.6(b)) will be canceled and extinguished and
     be converted automatically into (i) the right to receive $7.50 in cash,
     without interest (the "Per Share Cash Amount"); or (ii) the right to
     receive 0.3125 shares of QuadraMed Common Stock (the "Exchange Ratio");
     provided, however, that (1) if the QuadraMed Stock Value (as defined below)
     exceeds $27.60, then the Exchange Ratio shall be the quotient obtained by
     dividing (A) $8.625 by (B) the QuadraMed Stock Value, and (2) if the
     QuadraMed Stock Value is less than $24.00, then the Exchange Ratio shall be
     the quotient obtained by dividing (A) $7.50 by (B) the QuadraMed Stock
     Value; provided further, however, that if the QuadraMed Stock Value is less
     than $20.40, then QuadraMed may, at its sole discretion, elect to have all
     or any portion of the shares of Medicus Common Stock converted into the Per
     Share Cash Amount (the "QuadraMed Cash Election"); or (iii) the right to
     receive a combination of shares of QuadraMed Common Stock and cash, all in
     accordance with the provisions of this Section 1.6. In the event of the
     QuadraMed Cash Election in which less than all of the outstanding shares of
     Medicus Common Stock will be converted into cash, the shares of Medicus
     Common Stock to be converted into cash as a result of the QuadraMed Cash
     Election will be selected pro rata according to the number of shares with
     respect to which a Stock Election (as defined below) has been made. The
     amounts paid in the Merger in exchange for shares of Medicus Common Stock
     shall be referred to herein as the "Merger Consideration." For purposes
     hereof, the "QuadraMed Stock Value" shall be equal to the average of the
     closing prices of QuadraMed Common Stock during the fifteen (15) days prior
     to the second day prior to the date of the Medicus Stockholders Meeting (as
     defined in Section 2.23).
 
          (b) Cancellation of Medicus Common Stock Owned by QuadraMed or
     Medicus. At the Effective Time, all shares of Medicus Common Stock that are
     owned by Medicus as treasury stock and each share of Medicus Common Stock
     owned by QuadraMed or any direct or indirect wholly owned subsidiary of
     QuadraMed or of Medicus immediately prior to the Effective Time shall be
     canceled and extinguished without any conversion thereof.
 
          (c) Medicus Stock Option Plans. At the Effective Time, the Medicus
     1989 Stock Option Plan, the Medicus 1991 Stock Option Plan, the Medicus
     1993 Stock Option Plan, the Medicus 1993 Performance Stock Option Plan, the
     Medicus 1994 Stock Option Plan, the Medicus 1994 Directors' Stock Option
     Plan, the Medicus 1995 RCM Stock Option Plan, the Medicus 1996 C.E.O. Stock
     Option Plan, the Medicus 1996 C.E.O. Replacement Stock Option Plan, the
     Medicus 1996 C.E.O. Special Stock Option Plan, the Medicus 1997 Employee
     Stock Option and Restricted Stock Plan, the Medicus 1997 Directors' Stock
     Option Plan (collectively, the "Medicus Stock Option Plans"), the Stock
     Exchange and
                                       A-2
<PAGE>   85
 
     Subscription warrants dated March 19, 1997 issued by Medicus to Richard C.
     Jelinek and a trust for his benefit (the "Jelinek Warrants") and the Stock
     Subscription Warrant dated March 1, 1996 issued by Medicus to TriHealth,
     Inc. (the "TriHealth Warrant") and all options or rights to purchase
     Medicus Common Stock then outstanding under the Medicus Stock Option Plans,
     the Jelinek Warrants and the TriHealth Warrant shall be assumed by
     QuadraMed in accordance with Section 5.11.
 
          (d) Capital Stock of Merger Sub. At the Effective Time, each share of
     Common Stock, $.01 par value, of Merger Sub ("Merger Sub Common Stock")
     issued and outstanding immediately prior to the Effective Time shall be
     converted into and exchanged for one validly issued, fully paid and
     nonassessable share of Common Stock, $.01 par value, of the Surviving
     Corporation. Each stock certificate of Merger Sub evidencing ownership of
     any such shares shall continue to evidence ownership of such shares of
     capital stock of the Surviving Corporation.
 
          (e) Adjustments to Exchange Ratio and Per Share Cash Amount. The
     Exchange Ratio and the Per Share Cash Amount shall be adjusted to reflect
     fully the effect of any stock split, reverse split, stock dividend
     (including any dividend or distribution of securities convertible into
     QuadraMed Common Stock or Medicus Common Stock), reorganization,
     recapitalization or other like change with respect to QuadraMed Common
     Stock or Medicus Common Stock occurring after the date hereof and prior to
     the Effective Time.
 
          (f) Fractional Shares. No fraction of a share of QuadraMed Common
     Stock will be issued in the Merger. In lieu of any fractional shares that
     would otherwise be issuable in the Merger in exchange for shares of Medicus
     Common Stock, QuadraMed shall pay the proportionate amount of the Per Share
     Cash Amount that would be payable in respect of such fractional share.
 
          (g) Limitation on Shares Issuable. In no event shall the aggregate
     number of shares of QuadraMed Common Stock which QuadraMed is obligated to
     issue (1) upon the exercise of Warrants and (2) in exchange for outstanding
     shares of Medicus Common Stock pursuant to this Agreement exceed a total of
     1,800,000 shares. In the event that the aggregate number of shares of
     Common Stock that holders of Warrants and holders of Medicus Common Stock
     have elected to receive as described in clauses (1) and (2) in the
     immediately preceding sentence exceeds 1,800,000 shares, QuadraMed shall
     only be required to issue 1,800,000 shares of QuadraMed Common Stock and
     such holders shall be entitled to receive shares of QuadraMed Common Stock
     equal to each holder's pro rata portion of the total amount of shares
     issued by QuadraMed as described in clauses (1) and (2), based on the total
     number of shares each holder and each elected to receive.
 
          (h) Election for Shares or Cash. Each record holder immediately prior
     to the Effective Time of shares of Medicus Common Stock will be entitled
     (i) to elect to receive cash for none, some or all of such shares (a "Cash
     Election"), (ii) to elect to receive QuadraMed Common Stock for none, some
     or all of such shares (a "Stock Election"), or (iii) to indicate that such
     record holder has no preference as to the receipt of cash or QuadraMed
     Common Stock for such shares (a "Non-Election"). All such elections shall
     be made on a form designed for that purpose (a "Form of Election"). Holders
     of record of shares of Medicus Common Stock who hold such shares as
     nominees, trustees or in other representative capacities (a
     "Representative") may submit multiple Forms of Election, provided that such
     Representative certifies that each such Form of Election covers all the
          shares of Medicus Common Stock held by each Representative for a
     particular beneficial owner. All shares of Medicus Common Stock covered by
     Stock Elections (the "Stock Election Shares") and all shares of Medicus
     Common Stock covered by Non-Elections (the "Non-Election Shares") shall be
     converted into the right to receive QuadraMed Common Stock, and the Cash
     Election Shares shall be converted into the right to receive cash, without
     interest.
 
          (i) Election Procedures. Elections shall be made by holders of Medicus
     Common Stock by mailing or otherwise delivering to the Exchange Agent (as
     defined in Section 1.7) a Form of Election. To be effective, a Form of
     Election must be properly completed, signed and submitted to the Exchange
     Agent and accompanied by the certificates representing the shares of
     Medicus Common Stock as to which the election is being made (or by an
     appropriate trust company in the United States or a member of a
                                       A-3
<PAGE>   86
 
     registered national securities exchange or the National Association of
     Securities Dealers, Inc. (the "NASD")). QuadraMed will have the discretion
     which it may delegate in whole or in part to the Exchange Agent, to
     determine whether Forms of Election have been properly completed, signed
     and submitted or revoked and to disregard immaterial defects in Forms of
     Election. The decision of QuadraMed (or the Exchange Agent) in such matters
     shall be conclusive and binding. Neither QuadraMed nor the Exchange Agent
     will be under any obligation to notify any person of any defect in a Form
     of Election submitted to the Exchange Agent. The Exchange Agent shall also
     make all computations contemplated by this Section 1.6 and all such
     computations shall be conclusive and binding on the holders of Medicus
     Common Stock. For the purposes hereof, a holder of Medicus Common Stock who
     does not submit a Form of Election which is received by the Exchange Agent
     prior to the Election Deadline (as hereinafter defined) shall be deemed to
     have made a Non-Election. If QuadraMed or the Exchange Agent shall
     determine that any purported Cash Election or Stock Election was not
     properly made, such purported Cash Election or Stock Election shall be
     deemed to be of no force and effect and the stockholder making such
     purported Cash Election or Stock Election shall for purposes hereof, be
     deemed to have made a Non-Election. QuadraMed and Medicus shall each use
     its reasonable best efforts to mail the Form of Election to all persons who
     become holders of Medicus Common Stock during the period between the record
     date for the Medicus Stockholders Meeting (as defined in Section 2.23) and
     10:00 a.m. California time, on the date seven calendar days prior to the
     anticipated Effective Time and to make the Form of Election available to
     all persons who become holders of Medicus Common Stock subsequent to such
     day and no later than the close of business on the business day prior to
     the Effective Time. A Form of Election must be received by the Exchange
     Agent by the close of business on the last business day prior to the
     Effective Time (the "Election Deadline") in order to be effective. All
     elections may be revoked until the Election Deadline.
 
     1.7  Surrender of Certificates.
 
     (a) Exchange Agent. The First National Bank of Boston shall act as exchange
agent (the "Exchange Agent") in the Merger.
 
     (b) QuadraMed to Provide Common Stock and Cash. Promptly after the
Effective Time, QuadraMed shall make available to the Exchange Agent for
exchange in accordance with this Article I, through such reasonable procedures
as QuadraMed may adopt, (i) the shares of QuadraMed Common Stock issuable in
exchange for Stock Election Shares and Non-Election Shares and (ii) cash in an
amount sufficient to purchase Cash Election Shares and permit payment of cash in
lieu of fractional shares pursuant to Section 1.6(f).
 
     (c) Exchange Procedures. Promptly after the Effective Time, the Surviving
Corporation shall cause to be mailed to each holder of record of a certificate
or certificates (the "Certificates") which immediately prior to the Effective
Time represented outstanding shares of Medicus Common Stock, whose shares were
converted into the right to receive shares of QuadraMed Common Stock (and cash
in lieu of fractional shares) pursuant to Section 1.6, (i) a letter of
transmittal (which shall specify that delivery shall be effected, and risk of
loss and title to the Certificates shall pass, only upon receipt of the
Certificates by the Exchange Agent, and shall be in such form and have such
other provisions as QuadraMed may reasonably specify) and (ii) instructions for
use in effecting the surrender of the Certificates in exchange for certificates
representing shares of QuadraMed Common Stock (and cash in lieu of fractional
shares) or cash. Upon surrender of a Certificate for cancellation to the
Exchange Agent or to such other agent or agents as may be appointed by
QuadraMed, together with such letter of transmittal, duly completed and validly
executed in accordance with the instructions thereto, the holder of such
Certificate shall be entitled to receive in exchange therefor (i) a certificate
representing the number of whole shares of QuadraMed Common Stock and payment in
lieu of fractional shares which such holder has the right to receive pursuant to
Section 1.6 or (ii) cash, as the case may be, and the Certificate so surrendered
shall forthwith be canceled. Until so surrendered, each outstanding Certificate
that, prior to the Effective Time, represented shares of Medicus Common Stock
will be deemed for all corporate purposes, other than the payment of dividends,
to evidence the ownership of the number of full shares of QuadraMed Common Stock
or cash, as the case may be, into which such shares of Medicus
 
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<PAGE>   87
 
Common Stock shall have been so converted and the right to receive an amount in
cash in lieu of the issuance of any fractional shares in accordance with Section
1.6.
 
     (d) Distributions With Respect to Unexchanged Shares. No dividends or other
distributions with respect to QuadraMed Common Stock with a record date after
the Effective Time will be paid to the holder of any unsurrendered Certificate
with respect to the shares of QuadraMed Common Stock represented thereby until
the holder of record of such Certificate shall surrender such Certificate.
Subject to applicable law, following surrender of any such Certificate, there
shall be paid to the record holder of the certificates representing whole shares
of QuadraMed Common Stock issued in exchange therefor, without interest, at the
time of such surrender, the amount of any such dividends or other distributions
with a record date after the Effective Time theretofore payable (but for the
provisions of this Section 1.7(d)) with respect to such shares of QuadraMed
Common Stock.
 
   
     (e) Transfers of Ownership. If any certificate for shares of QuadraMed
Common Stock is to be issued in a name other than that in which the Certificate
surrendered in exchange therefor is registered, it will be a condition of the
issuance thereof that the Certificate so surrendered will be properly endorsed
and otherwise in proper form for transfer and that the person requesting such
exchange will have paid to QuadraMed or any agent designated by it any transfer
or other taxes required by reason of the issuance of a certificate for shares of
QuadraMed Common Stock in any name other than that of the registered holder of
the Certificate surrendered, or established to the satisfaction of QuadraMed or
any age. Notwithstanding anything to the contrary in this Section 1.7, none of
the Exchange Agent, the Surviving Corporation or any party hereto shall be
liable to any person for any amount properly paid to a public official pursuant
to any applicable abandoned property, escheat or similar law.
    
 
     1.8  No Further Ownership Rights in Medicus Common Stock. All shares of
QuadraMed Common Stock issued upon the surrender for exchange of shares of
Medicus Common Stock in accordance with the terms hereof (including any cash
paid in lieu of fractional shares) shall be deemed to have been issued in full
satisfaction of all rights pertaining to such shares of Medicus Common Stock,
and there shall be no further registration of transfers on the records of the
Surviving Corporation of shares of Medicus Common Stock which were outstanding
immediately prior to the Effective Time. If, after the Effective Time,
Certificates are presented to the Surviving Corporation for any reason, they
shall be canceled and exchanged as provided in this Article I.
 
   
     1.9 Lost, Stolen or Destroyed Certificates. In the event any Certificates
shall have been lost, stolen or destroyed, the Exchange Agent shall issue in
exchange for such lost, stolen or destroyed Certificates, upon the making of an
affidavit of that fact by the holder thereof, such shares of QuadraMed Common
Stock (and cash in lieu of fractional shares) as may be required pursuant to
Section 1.6; provided, however, that QuadraMed may, in its discretion and as a
condition precedent to the issuance thereof, require the owner of such lost,
stolen or destroyed Certificates to deliver a bond in such sum as it may
reasonably direct as indemnity against any claim that may be made against
QuadraMed, the Surviving Corporation or the Exchange Agent with respect to the
Certificates alleged to have been lost, stolen or destroyed.
    
 
     1.10  Taking of Necessary Action; Further Action. If, at any time after the
Effective Time, any further action is necessary or desirable to carry out the
purposes of this Agreement and to vest the Surviving Corporation with full
right, title and possession to all assets, property, rights, privileges, powers
and franchises of Medicus and Merger Sub, the officers and directors of Medicus
and Merger Sub are fully authorized in the name of their respective corporations
or otherwise to take, and will take, all such lawful and necessary action, so
long as such action is not inconsistent with this Agreement.
 
     1.11  Dissenting Shares. Notwithstanding any other provisions of this
Agreement to the contrary, shares of Medicus QuadraMed Common Stock that are
outstanding immediately prior to the Effective Time and which are held by
stockholders who shall have demanded properly in writing appraisal for such
shares in accordance with Section 262 of the DGCL (collectively, the "Dissenting
Shares") shall not be converted into or represent the right to receive the
Merger Consideration. Such stockholders shall be entitled to receive payment of
the appraised value of such shares of Medicus Common Stock held by them in
accordance with the provisions of Section 262, except that all Dissenting Shares
held by stockholders who shall have failed to
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<PAGE>   88
 
perfect or who effectively shall have withdrawn or lost their rights to
appraisal of such shares of Medicus Common Stock under such Section 262 shall
thereupon be deemed to have been converted into and to have become exchangeable,
as of the Effective Time, for the right to receive, without any interest
thereon, shares of QuadraMed Common Stock based on the Exchange Ratio determined
in accordance with Section 1.1 hereof, as if such shares were covered by
Non-Elections, upon surrender, in the manner provided in this Article I, of the
certificate or certificates that formerly evidenced such shares of Medicus
Common Stock.
 
                                   ARTICLE II
 
                   REPRESENTATIONS AND WARRANTIES OF MEDICUS
 
     In this Agreement, any reference to any event, change, condition or effect
being "material" with respect to any entity or group of entities means any
material event, change, condition or effect related to the condition (financial
or otherwise), properties, assets (including intangible assets), liabilities,
business, operations or results of operations of such entity or group of
entities. In this Agreement, any reference to a "Material Adverse Effect" with
respect to any entity or group of entities means any event, change or effect
that is materially adverse to the condition (financial or otherwise),
properties, assets, liabilities, business, operations or results of operations
of such entity and its subsidiaries, taken as a whole.
 
     Except as disclosed in a document of even date herewith and delivered by
Medicus to QuadraMed prior to the execution and delivery of this Agreement and
referring to the representations and warranties in this Agreement (the "Medicus
Disclosure Schedule"), Medicus represents and warrants to QuadraMed and Merger
Sub as follows:
 
     2.1  Organization, Standing and Power. Each of Medicus and its subsidiaries
is a corporation duly organized, validly existing and in good standing under the
laws of its jurisdiction of organization. Each of Medicus and its subsidiaries
has the corporate power to own its properties and to carry on its business as
now being conducted and as proposed to be conducted and is duly qualified to do
business and is in good standing in each jurisdiction in which the failure to be
so qualified and in good standing would have a Material Adverse Effect on
Medicus. Medicus has delivered a true and correct copy of the Amended and
Restated Certificate of Incorporation, as amended (the "Certificate of
Incorporation"), and Bylaws, as amended, or other charter documents, as
applicable, of Medicus and each of its subsidiaries, each as amended to date, to
QuadraMed. Neither Medicus nor any of its subsidiaries is in violation of any of
the provisions of its Certificate of Incorporation or Bylaws or equivalent
organizational documents. Medicus is the owner of all outstanding shares of
capital stock of each of its subsidiaries and all such shares are duly
authorized, validly issued, fully paid and nonassessable. All of the outstanding
shares of capital stock of each such subsidiary are owned by Medicus free and
clear of all liens, charges, claims or encumbrances or rights of others. There
are no outstanding subscriptions, options, warrants, puts, calls, rights,
exchangeable or convertible securities or other commitments or agreements of any
character relating to the issued or unissued capital stock or other securities
of any such subsidiary, or otherwise obligating Medicus or any such subsidiary
to issue, transfer, sell, purchase, redeem or otherwise acquire any such
securities. Except as disclosed in the Medicus SEC Documents (as defined in
Section 2.4), Medicus does not directly or indirectly own any equity or similar
interest in, or any interest convertible or exchangeable or exercisable for, any
equity or similar interest in, any corporation, partnership, joint venture or
other business association or entity.
 
     2.2  Capital Structure. The authorized capital stock of Medicus consists of
10,000,000 shares of Common Stock, $.01 par value, 1,000,000 shares of Preferred
Stock, $.01 par value, and 500 shares of Voting Preferred Stock, $1,000 par
value, of which there were issued and outstanding as of the close of business on
November 7, 1997, 5,487,971 shares of Common Stock and no shares of Preferred
Stock or Voting Preferred Stock. There are no other outstanding shares of
capital stock or voting securities and no outstanding commitments to issue any
shares of capital stock or voting securities other than pursuant to the exercise
of options outstanding as of such date under the Medicus Stock Option Plans and
the obligation to issue 34,800 restricted shares previously granted under the
Medicus Stock Option Plans. All outstanding shares of Medicus Common Stock are
duly authorized, validly issued, fully paid and non-assessable and are free of
any liens or encumbrances created by, or resulting from the actions of, Medicus,
and are not subject to preemptive rights
                                       A-6
<PAGE>   89
 
or rights of first refusal created by statute, the Certificate of Incorporation
or Bylaws of Medicus or any agreement to which Medicus is a party or by which it
is bound. As of the close of business on November 7, 1997, Medicus has 1,501,350
shares subject to outstanding, unexercised options. Since November 7, 1997,
Medicus has not issued or granted additional options under the Medicus Stock
Option Plans. Except for (i) the rights created pursuant to this Agreement or
the Medicus Stock Option Plans and (ii) Medicus' right to repurchase any
unvested shares under the Medicus Stock Option Plans, there are no other
options, warrants, calls, rights, commitments or agreements of any character to
which Medicus is a party or by which it is bound obligating Medicus to issue,
deliver, sell, repurchase or redeem, or cause to be issued, delivered, sold,
repurchased or redeemed, any shares of capital stock of Medicus or obligating
Medicus to grant, extend, accelerate the vesting of, change the price of, or
otherwise amend or enter into any such option, warrant, call, right, commitment
or agreement. There are no contracts, commitments or agreements relating to
voting, purchase or sale of Medicus' capital stock (i) between or among Medicus
and any of its stockholders and (ii) to the best of Medicus' knowledge, between
or among any of Medicus' stockholders. The terms of the Medicus Stock Option
Plans permit the assumption or substitution of options to purchase QuadraMed
Common Stock as provided in this Agreement, without the consent or approval of
the holders of such securities, the Medicus stockholders, or otherwise and
without any acceleration of the exercise schedule or vesting provisions in
effect for those options. True and complete copies of all forms of agreements
and instruments relating to or issued under the Medicus Stock Option Plans have
been made available to QuadraMed and such agreements and instruments have not
been amended, modified or supplemented, and there are no agreements to amend,
modify or supplement such agreements or instruments in any case from the form
made available to QuadraMed.
 
     2.3  Authority. Medicus has all requisite corporate power and authority to
enter into this Agreement and to consummate the transactions contemplated
hereby. The execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of Medicus, subject only to the approval of the
Merger by Medicus' stockholders as contemplated by Section 6.1(a). This
Agreement has been duly executed and delivered by Medicus and constitutes the
valid and binding obligation of Medicus enforceable against Medicus in
accordance with its terms. The execution and delivery of this Agreement by
Medicus does not, and the consummation of the transactions contemplated hereby
will not, conflict with, or result in any violation of, or default under (with
or without notice or lapse of time, or both), or give rise to a right of
termination, cancellation or acceleration of any obligation or loss of any
benefit under (i) any provision of the Certificate of Incorporation or Bylaws of
Medicus or any of its subsidiaries, as amended, or (ii) any material mortgage,
indenture, lease, contract or other agreement or instrument, permit, concession,
franchise, license, judgment, order, decree, statute, law, ordinance, rule or
regulation applicable to Medicus or any of its subsidiaries or any of their
properties or assets, except where such conflict, violation, default,
termination, cancellation or acceleration with respect to the foregoing
provisions of (ii) would not have had and would not reasonably be expected to
have a Material Adverse Effect on Medicus. No consent, approval, order or
authorization of, or registration, declaration or filing with, any court,
administrative agency or commission or other governmental authority or
instrumentality ("Governmental Entity") is required by or with respect to
Medicus or any of its subsidiaries in connection with the execution and delivery
of this Agreement or the consummation of the transactions contemplated hereby
and thereby, except for (i) the filing of the Certificate of Merger as provided
in Section 1.2, (ii) the filing with the Securities and Exchange Commission (the
"SEC") and the NASD of the Proxy Statement (as defined in Section 2.23) relating
to the Medicus Stockholders Meeting (as defined in Section 2.23), (iii) such
consents, approvals, orders, authorizations, registrations, declarations and
filings as may be required under applicable state securities laws and the
securities laws of any foreign country; and (iv) such other consents,
authorizations, filings, approvals and registrations which, if not obtained or
made, would not have a Material Adverse Effect on Medicus and would not prevent,
or materially alter or delay any of the transactions contemplated by this
Agreement.
 
     2.4  SEC Documents; Financial Statements. Medicus has furnished to
QuadraMed a true and complete copy of each statement, report, registration
statement (with the prospectus in the form filed pursuant to Rule 424(b) of the
Securities Act of 1933, as amended (the "Securities Act")), definitive proxy
statement
 
                                       A-7
<PAGE>   90
 
and other filing filed with the SEC by Medicus since March 1, 1996, and, prior
to the Effective Time, Medicus will have furnished QuadraMed with true and
complete copies of any additional documents filed with the SEC
by Medicus prior to the Effective Time (collectively, the "Medicus SEC
Documents"). In addition, Medicus has made available to QuadraMed all exhibits
to the Medicus SEC Documents filed prior to the date hereof, and will promptly
make available to QuadraMed all exhibits to any additional Medicus SEC Documents
filed prior to the Effective Time. All documents required to be filed as
exhibits to the Medicus SEC Documents have been so filed, and all material
contracts so filed as exhibits are in full force and effect, except those which
have expired in accordance with their terms, and neither Medicus nor any of its
subsidiaries is in default thereunder. As of their respective filing dates, the
Medicus SEC Documents complied in all material respects with the requirements of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the
Securities Act, and none of the Medicus SEC Documents contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary to make the statements made therein, in light of the
circumstances in which they were made, not misleading, except to the extent
corrected by a subsequently filed Medicus SEC Document. The financial statements
of Medicus, including the notes thereto, included in the Medicus SEC Documents
(the "Medicus Financial Statements") were complete and correct in all material
respects as of their respective dates, complied as to form in all material
respects with applicable accounting requirements and with the published rules
and regulations of the SEC with respect thereto as of their respective dates,
and have been prepared in accordance with generally accepted accounting
principles applied on a basis consistent throughout the periods indicated and
consistent with each other (except as may be indicated in the notes thereto or,
in the case of unaudited statements included in Quarterly Reports on Form 10-Q,
as permitted by Form 10-Q of the SEC). The Medicus Financial Statements fairly
present the consolidated financial condition and operating results of Medicus
and its subsidiaries at the dates and during the periods indicated therein
(subject, in the case of unaudited statements, to normal, recurring year-end
adjustments). There has been no change in Medicus accounting policies except as
described in the notes to the Medicus Financial Statements.
 
     2.5  Absence of Certain Changes. Since August 31, 1997 (the "Medicus
Balance Sheet Date"), Medicus has conducted its business in the ordinary course
consistent with past practice and, except as disclosed in the Medicus SEC
Documents, there has not occurred: (i) any change, event or condition (whether
or not covered by insurance) that has resulted in, or might reasonably be
expected to result in, a Material Adverse Effect to Medicus; (ii) any
acquisition, sale or transfer of any material asset of Medicus or any of its
subsidiaries other than in the ordinary course of business and consistent with
past practice; (iii) any change in accounting methods or practices (including
any change in depreciation or amortization policies or rates) by Medicus or any
revaluation by Medicus of any of its or any of its subsidiaries' assets; (iv)
any declaration, setting aside, or payment of a dividend or other distribution
with respect to the shares of Medicus, or any direct or indirect redemption,
purchase or other acquisition by Medicus of any of its shares of capital stock;
(v) any material contract entered into by Medicus or any of its subsidiaries,
other than in the ordinary course of business and as provided to QuadraMed, or
any material amendment or termination of, or default under, any material
contract to which Medicus or any of its subsidiaries is a party or by which it
is bound; or (vi) any negotiation or agreement by Medicus or any of its
subsidiaries to do any of the things described in the preceding clauses (i)
through (v) (other than negotiations with QuadraMed and its representatives
regarding the transactions contemplated by this Agreement).
 
     2.6  Absence of Undisclosed Liabilities. Medicus has no material
obligations or liabilities of any nature (matured or unmatured, fixed or
contingent) other than (i) those set forth or adequately provided for in the
Balance Sheet included in Medicus' Quarterly Report on Form 10-Q for the period
ended August 31, 1997 (the "Medicus Balance Sheet"), (ii) those incurred in the
ordinary course of business and not required to be set forth in the Medicus
Balance Sheet under generally accepted accounting principles, (iii) those
incurred in the ordinary course of business since the Medicus Balance Sheet Date
and consistent with past practice; and (iv) those incurred in connection with
the execution of this Agreement.
 
     2.7  Litigation. There is no private or governmental action, suit,
proceeding, claim, arbitration or investigation pending before any agency, court
or tribunal, foreign or domestic, or, to the knowledge of Medicus or any of its
subsidiaries, threatened against Medicus or any of its subsidiaries or any of
their
 
                                       A-8
<PAGE>   91
 
respective properties or any of their respective officers or directors (in their
capacities as such) that, individually or in the aggregate, could reasonably be
expected to have a Material Adverse Effect on Medicus.
There is no judgment, decree or order against Medicus or any of its
subsidiaries, or, to the knowledge of Medicus and its subsidiaries, any of their
respective directors or officers (in their capacities as such), that could
prevent, enjoin, alter or materially delay any of the transactions contemplated
by this Agreement, or that could reasonably be expected to have a Material
Adverse Effect on Medicus.
 
     2.8  Restrictions on Business Activities. There is no material agreement,
judgment, injunction, order or decree binding upon Medicus or any of its
subsidiaries which has or reasonably could be expected to have the effect of
prohibiting or materially impairing any current or future business practice of
Medicus or any of its subsidiaries, any acquisition of property by Medicus or
any of its subsidiaries or the conduct of business by Medicus or any of its
subsidiaries as currently conducted or as proposed to be conducted by Medicus or
any of its subsidiaries.
 
     2.9  Governmental Authorization. Medicus and each of its subsidiaries have
obtained each federal, state, county, local or foreign governmental consent,
license, permit, grant, or other authorization of a Governmental Entity (i)
pursuant to which Medicus or any of its subsidiaries currently operates or holds
any interest in any of its properties or (ii) that is required for the operation
of Medicus' or any of its subsidiaries' business or the holding of any such
interest ((i) and (ii) herein collectively called "Medicus Authorizations"), and
all of such Medicus Authorizations are in full force and effect, except where
the failure to obtain or have any of such Medicus Authorizations could not
reasonably be expected to have a Material Adverse Effect on Medicus.
 
     2.10  Title to Property. Medicus and its subsidiaries have good and valid
title to all of their respective properties, interests in properties and assets,
real and personal, reflected in the Medicus Balance Sheet or acquired after the
Medicus Balance Sheet Date (except properties, interests in properties and
assets sold or otherwise disposed of since the Medicus Balance Sheet Date in the
ordinary course of business), or in the case of leased properties and assets,
valid leasehold interests therein, free and clear of all mortgages, liens,
pledges, charges or encumbrances of any kind or character, except (i) the lien
of current taxes not yet due and payable, (ii) such imperfections of title,
liens and easements as do not and will not materially detract from or interfere
with the use of the properties subject thereto or affected thereby, or otherwise
materially impair business operations involving such properties and (iii) liens
securing debt which is reflected on the Medicus Balance Sheet. The plants,
property and equipment of Medicus and its subsidiaries that are used in the
operations of their businesses are in good operating condition and repair. All
properties used in the operations of Medicus and its subsidiaries are reflected
in the Medicus Balance Sheet to the extent generally accepted accounting
principles require the same to be reflected. Schedule 2.10 identifies each
parcel of real property owned or leased by Medicus or any of its subsidiaries.
 
     2.11  Intellectual Property.
 
     (a) Medicus and its subsidiaries own, or are licensed or otherwise possess
legally enforceable rights to use all patents, trademarks, trade names, service
marks, copyrights, and any applications therefor, maskworks, net lists,
schematics, technology, know-how, trade secrets, inventory, ideas, algorithms,
processes, computer software programs or applications (in both source code and
object code form), and tangible or intangible proprietary information or
material ("Intellectual Property") that are used in the business of Medicus and
its subsidiaries as currently conducted or as proposed to be conducted by
Medicus and its subsidiaries, except to the extent that the failure to have such
rights have not had and would not reasonably be expected to have a Material
Adverse Effect on Medicus.
 
     (b) Medicus has provided to QuadraMed (i) all patents and patent
applications and all registered and unregistered trademarks, trade names and
service marks, registered and unregistered copyrights, and maskworks, which
Medicus considers to be material to its business and included in the
Intellectual Property, including the jurisdictions in which each such
Intellectual Property right has been issued or registered or in which any
application for such issuance and registration has been filed, (ii) all
licenses, sublicenses and other agreements as to which Medicus is a party and
pursuant to which any person is authorized to use any Intellectual Property, and
(iii) all licenses, sublicenses and other agreements as to which Medicus is a
party
                                       A-9
<PAGE>   92
 
and pursuant to which Medicus is authorized to use any third party patents,
trademarks or copyrights, including software ("Third Party Intellectual Property
Rights") which are incorporated in, are, or form a part of any Medicus product
that is material to its business.
 
     (c) To Medicus' knowledge, there is no unauthorized use, disclosure,
infringement or misappropriation of any Intellectual Property rights of Medicus
or any of its subsidiaries, any trade secret material to Medicus or any of its
subsidiaries, or any Intellectual Property right of any third party to the
extent licensed by or through Medicus or any of its subsidiaries, by any third
party, including any employee of its subsidiaries has entered into any agreement
to indemnify any other person against any charge of infringement of any
Intellectual Property, other than indemnification provisions contained in
purchase orders arising in the ordinary course of business.
 
     (d) Medicus is not, nor will it be as a result of the execution and
delivery of this Agreement or the performance of its obligations under this
Agreement, in breach of any license, sublicense or other agreement relating to
the Intellectual Property or Third Party Intellectual Property Rights, the
breach of which would have a Material Adverse Effect on Medicus.
 
     (e) All patents, registered trademarks, service marks and copyrights held
by Medicus are valid and subsisting. Medicus (i) has not been sued in any suit,
action or proceeding which involves a claim of infringement of any patents,
trademarks, service marks, copyrights or violation of any trade secret or other
proprietary right of any third party and (ii) has not brought any action, suit
or proceeding for infringement of Intellectual Property or breach of any license
or agreement involving Intellectual Property against any third party. The
manufacture, marketing, licensing or sale of Medicus' products does not infringe
any patent, trademark, service mark, copyright, trade secret or other
proprietary right of any third party, except where such infringement would not
have a Material Adverse Effect on Medicus.
 
     (f) Medicus has secured valid written assignments from all consultants and
employees who contributed to the creation or development of Intellectual
Property of the rights to such contributions that Medicus does not already own
by operation of law.
 
     (g) Medicus has taken all reasonable and appropriate steps to protect and
preserve the confidentiality of all Intellectual Property not otherwise
protected by patents, or patent applications or copyright ("Confidential
Information"). All use, disclosure or appropriation of Confidential Information
owned by Medicus by or to a third party has been pursuant to the terms of a
written agreement between Medicus and such third party. All use, disclosure or
appropriation of Confidential Information not owned by Medicus has been pursuant
to the terms of a written agreement between Medicus and the owner of such
Confidential Information, or is otherwise lawful.
 
     2.12  Environmental Matters
 
     (a) The following terms shall be defined as follows:
 
          (i) "Environmental and Safety Laws" shall mean any federal, state or
     local laws, ordinances, codes, regulations, rules, policies and orders that
     are intended to assure the protection of the environment, or that classify,
     regulate, call for the remediation of, require reporting with respect to,
     or list or define air, water, groundwater, solid waste, hazardous or toxic
     substances, materials, wastes, pollutants or contaminants, or which are
     intended to assure the safety of employees, workers or other persons,
     including the public.
 
          (ii) "Hazardous Materials" shall mean any toxic or hazardous
     substance, material or waste or any pollutant or contaminant, or infectious
     or radioactive substance or material, including without limitation, those
     substances, materials and wastes defined in or regulated under any
     Environmental and Safety Laws.
 
          (iii) "Property" shall mean all real property leased or owned by
     Medicus or its subsidiaries either currently or in the past.
 
          (iv) "Facilities" shall mean all buildings and improvements on the
     Property of Medicus or its subsidiaries.
 
                                      A-10
<PAGE>   93
 
     (b) Medicus represents and warrants as follows: (i) to Medicus' knowledge,
no methylene chloride or asbestos is contained in or has been used at or
released from the Facilities; (ii) all Hazardous Materials and wastes disposed
of by Medicus have been disposed of in accordance with all Environmental and
Safety Laws; (iii) Medicus and its subsidiaries have received no notice (verbal
or written) of any noncompliance of the Facilities or its past or present
operations with Environmental and Safety Laws; (iv) no notices, administrative
actions or suits are pending or, to Medicus' knowledge, threatened relating to a
violation of any Environmental and Safety Laws; (v) neither Medicus nor its
subsidiaries have been notified that they are a potentially responsible party
under the federal Comprehensive Environmental Response, Compensation and
Liability Act (CERCLA), or state analog statute, arising out of events occurring
prior to the Closing Date; (vi) to Medicus' knowledge, there have not been in
the past, and are not now, any Hazardous Materials on, under or migrating to or
from the Facilities or Property; (vii) to Medicus' knowledge, there have not
been in the past, and are not now, any underground tanks or underground
improvements at, on or under the Property including without limitation,
treatment or storage tanks, pumps, or water, gas or oil wells; (viii) to
Medicus' knowledge, there are no polychlorinated biphenyls (PCBs) deposited,
stored, disposed of or located on the Property or Facilities or any equipment on
the Property containing PCBs at levels in excess of 50 parts per million; (ix)
to Medicus' knowledge, there is no formaldehyde on the Property or in the
Facilities, nor any insulating material containing urea formaldehyde in the
Facilities; (x) Medicus' and its subsidiaries' uses of and activities within the
Facilities have at all times complied with all Environmental and Safety Laws;
and (xi) Medicus and its subsidiaries have all the permits and licenses required
to be issued and are in full compliance with the terms and conditions of those
permits, except where the failure to have or comply with such permits would not,
individually or in the aggregate, have a Material Adverse Effect of Medicus.
 
     2.13  Taxes. Medicus and each of its subsidiaries, and any consolidated,
combined, unitary or aggregate group for Tax purposes of which Medicus or any of
its subsidiaries is or has been a member have timely filed all Tax Returns
required to be filed by it, have paid all Taxes shown thereon to be due and has
provided adequate accruals in accordance with generally accepted accounting
principles in its financial statements for any Taxes that have not been paid,
whether or not shown as being due on any Tax returns. Except as disclosed in the
SEC Documents, (i) no material claim for Taxes has become a lien against the
property of Medicus or any of its subsidiaries or is being asserted against
Medicus or any of its subsidiaries other than liens for Taxes not yet due and
payable, (ii) no audit of any Tax Return of Medicus or any of its subsidiaries
is being conducted by a Tax authority, (iii) no extension of the statute of
limitations on the assessment of any Taxes has been granted by Medicus or any of
its subsidiaries and is currently in effect, and (iv) there is no agreement,
contract or arrangement to which Medicus or any of its subsidiaries is a party
that may result in the payment of any amount that would not be deductible by
reason of Sections 280G, 162 or 404 of the Code. Medicus has not been and will
not be required to include any material adjustment in Taxable income for any Tax
period (or portion thereof) pursuant to Section 481 or 263A of the Code or any
comparable provision under state or foreign Tax laws as a result of
transactions, events or accounting methods employed prior to the Merger. Neither
Medicus nor any of its subsidiaries is a party to any tax sharing or tax
allocation agreement nor does Medicus or any of its subsidiaries owe any amount
under any such agreement. For purposes of this Agreement, the following terms
have the following meanings: "Tax" (and, with correlative meaning, "Taxes" and
"Taxable") means (i) any net income, alternative or add-on minimum tax, gross
income, gross receipts, sales, use, ad valorem, transfer, franchise, profits,
license, withholding, payroll, employment, excise, severance, stamp, occupation,
premium, property, environmental or windfall profit tax, custom, duty or other
tax, governmental fee or other like assessment or charge of any kind whatsoever,
together with any interest or any penalty, addition to tax or additional amount
imposed by any Governmental Entity (a "Tax Authority") responsible for the
imposition of any such tax (domestic or foreign), (ii) any liability for the
payment of any amounts of the type described in (i) as a result of being a
member of an affiliated, consolidated, combined or unitary group for any Taxable
period and (iii) any liability for the payment of any amounts of the type
described in (i) or (ii) as a result of any express or implied obligation to
indemnify any other person. As used herein, "Tax Return" shall mean any return,
statement, report or form (including, without limitation,) estimated Tax returns
and reports, withholding Tax returns and reports and information reports and
returns required to be filed with respect to Taxes. Medicus and each of its
subsidiaries are in full compliance with all terms and conditions of any Tax
exemptions or other Tax-sharing agreement or order of a foreign government
 
                                      A-11
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and the consummation of the Merger shall not have any adverse effect on the
continued validity and effectiveness of any such Tax exemptions or other
Tax-sharing agreement or order.
 
     2.14  Employee Benefit Plans.
 
     (a) Schedule 2.14 lists, with respect to Medicus, any subsidiary of Medicus
and any trade or business (whether or not incorporated) which is treated as a
single employer with Medicus (an "ERISA Affiliate") within the meaning of
Section 414(b), (c), (m) or (o) of the Code, (i) all material employee benefit
plans (as defined in Section 3(3) of the Employee Retirement Income Security Act
of 1974, as amended ("ERISA")), (ii) each loan to a non-officer employee in
excess of $50,000, loans to officers and directors and any stock option, stock
purchase, phantom stock, stock appreciation right, supplemental retirement,
severance, sabbatical, medical, dental, vision care, disability, employee
relocation, cafeteria benefit (Code section 125) or dependent care (Code Section
129), life insurance or accident insurance plans, programs or arrangements,
(iii) all bonus, pension, profit sharing, savings, deferred compensation or
incentive plans, programs or arrangements, (iv) other fringe or employee benefit
plans, programs or arrangements that apply to senior management of Medicus and
that do not generally apply to all employees, and (v) any current or former
employment or executive compensation or severance agreements, written or
otherwise, as to which unsatisfied obligations of Medicus of greater than
$50,000 remain for the benefit of, or relating to, any present or former
employee, consultant or director of Medicus (together, the "Medicus Employee
Plans").
 
     (b) Medicus has furnished to QuadraMed a copy of each of the Medicus
Employee Plans and related plan documents (including trust documents, insurance
policies or contracts, employee booklets, summary plan descriptions and other
authorizing documents, and, to the extent still in its possession, any material
employee communications relating thereto) and has, with respect to each Medicus
Employee Plan which is subject to ERISA reporting requirements, provided copies
of the Form 5500 reports filed for the last three plan years. Any Medicus
Employee Plan intended to be qualified under Section 401(a) of the Code has
either obtained from the Internal Revenue Service a favorable determination
letter as to its qualified status under the Code, including all amendments to
the Code effected by the Tax Reform Act of 1986 and subsequent legislation, or
has applied to the Internal Revenue Service for such a determination letter
prior to the expiration of the requisite period under applicable Treasury
Regulations or Internal Revenue Service pronouncements in which to apply for
such determination letter and to make any amendments necessary to obtain a
favorable determination. Medicus has also furnished QuadraMed with the most
recent Internal Revenue Service determination letter issued with respect to each
such Medicus Employee Plan, and nothing has occurred since the issuance of each
such letter which could reasonably be expected to cause the loss of the
tax-qualified status of any Medicus Employee Plan subject to Code Section
401(a).
 
     (c)(i) Except as disclosed on Schedule 2.14, none of the Medicus Employee
Plans promises or provides retiree medical or other retiree welfare benefits to
any person; (ii) there has been no "prohibited transaction," as such term is
defined in Section 406 of ERISA and Section 4975 of the Code, with respect to
any Medicus Employee Plan, which could reasonably be expected to have, in the
aggregate, a Material Adverse Effect; (iii) each Medicus Employee Plan has been
administered substantially in accordance with its terms and in compliance with
the requirements prescribed by any and all statutes, rules and regulations
(including ERISA and the Code), except as would not have, in the aggregate, a
Material Adverse Effect, and Medicus and each subsidiary or ERISA Affiliate have
performed all obligations required to be performed by them under, are not in any
respect in default under or violation of, and have no knowledge of any default
or violation by any other party to, any of the Medicus Employee Plans, which
default or violation could reasonably be expected to have a Material Adverse
Effect on Medicus; (iv) neither Medicus nor any subsidiary or ERISA Affiliate is
subject to any liability or penalty under Sections 4976 through 4980 of the Code
or Title I of ERISA with respect to any of the Medicus Employee Plans, other
than obligations for the payment of benefits in the normal operation of the
Plan, and obligations which would not in the aggregate have a Material Adverse
Effect on Medicus; (v) all material contributions required to be made by Medicus
or any subsidiary or ERISA Affiliate to any Medicus Employee Plan have been made
on or before their due dates and any accruals required by general accepted
accounting principles ("GAAP") for contributions to each Medicus Employee Plan
for the current plan years are reflected on the financial statements of Medicus;
(vi) with respect to each Medicus Employee Plan, no "reportable event" within
the meaning of Section 4043 of ERISA (excluding any such event for
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which the thirty (30) day notice requirement has been waived under the
regulations to Section 4043 of ERISA) nor any event described in Section 4062,
4063 or 4041 or ERISA has occurred; and (vii) neither Medicus nor any subsidiary
or ERISA Affiliate has incurred or expects to incur any liability under Title IV
of ERISA or Section 412 of the Code. With respect to each Medicus Employee Plan
subject to ERISA as either an employee pension plan within the meaning of
Section 3(2) of ERISA or an employee welfare benefit plan within the meaning of
Section 3(1) of ERISA, Medicus has prepared in good faith and timely filed all
requisite governmental reports (which were true and correct as of the date
filed) and has properly and timely filed and distributed or posted all notices
and reports to employees required to be filed, distributed or posted with
respect to each such Medicus Employee Plan, except for failures which would not
have a Material Adverse Effect on Medicus. No suit, administrative proceeding,
action or other litigation has been brought, or to the best knowledge of Medicus
is threatened, against or with respect to any such Medicus Employee Plan,
including any audit or inquiry by the IRS or United States Department of Labor.
Neither Medicus nor any Medicus subsidiary or other ERISA Affiliate is a party
to, or has made any contribution to or otherwise incurred any obligation under,
any "multiemployer plan" as defined in Section 3(37) of ERISA.
 
     (d) With respect to each Medicus Employee Plan, Medicus and each of its
United States subsidiaries have complied with (i) the applicable health care
continuation and notice provisions of the Consolidated Omnibus Budget
Reconciliation Act of 1985 ("COBRA") and the proposed regulations thereunder and
(ii) the applicable requirements of the Family Leave Act of 1993 and the
regulations thereunder, except to the extent that such failure to comply would
not, in the aggregate, have a Material Adverse Effect.
 
     (e) The consummation of the transactions contemplated by this Agreement
will not entitle any current or former employee or other service provider of
Medicus, any Medicus subsidiary or any other ERISA Affiliate to severance
benefits or any other payment, except as vesting, or increase the amount of
compensation due any such employee or service provider.
 
     (f) Except as disclosed on Schedule 2.14, there has been no amendment to,
written interpretation or announcement (whether or not written) by Medicus, any
Medicus subsidiary or other ERISA Affiliate relating to, or change in
participation or coverage under, any Medicus Employee Plan which would
materially increase the expense of maintaining such Plan above the level of
expense incurred with respect to that Plan for the most recent fiscal year
included in Medicus' financial statements.
 
     2.15  Certain Agreements Affected by the Merger. Neither the execution and
delivery of this Agreement nor the consummation of the transaction contemplated
hereby will (i) result in any payment (including, without limitation, severance,
unemployment compensation, golden parachute, bonus or otherwise) becoming due to
any director or employee of Medicus or any of its subsidiaries, (ii) materially
increase any benefits otherwise payable by Medicus or (iii) result in the
acceleration of the time of payment or vesting of any such benefits.
 
     2.16  Employee Matters. Medicus and each of its subsidiaries are in
compliance in all respects with all currently applicable laws and regulations
respecting employment, discrimination in employment, terms and conditions of
employment, wages, hours and occupational safety and health and employment
practices, and is not engaged in any unfair labor practice, except where the
failure to be in compliance or the engagement in such unfair labor practices
would not have a Material Adverse Effect on Medicus. There are no pending claims
against Medicus or any of its subsidiaries under any workers compensation plan
or policy or for long term disability. Neither Medicus nor any of its
subsidiaries has any obligations under COBRA with respect to any former
employees or qualifying beneficiaries thereunder, except for obligations that
would not have a Material Adverse Effect on Medicus. There are no controversies
pending or, to the knowledge of Medicus or any of its subsidiaries, threatened,
between Medicus or any of its subsidiaries and any of their respective
employees, which controversies have or could reasonably be expected to have a
Material Adverse Effect on Medicus. Neither Medicus nor any of its subsidiaries
is a party to any collective bargaining agreement or other labor union contract
nor does Medicus nor any of its subsidiaries know of any activities or
proceedings of any labor union to organize any such employees.
 
     2.17  Interested Party Transactions. Except as disclosed in the Medicus SEC
Documents, neither Medicus nor any of its subsidiaries is indebted to any
director, officer, employee or agent of Medicus or any of
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<PAGE>   96
 
its subsidiaries (except for amounts due as normal salaries and bonuses and in
reimbursement of ordinary expenses), and no such person is indebted to Medicus
or any of its subsidiaries, and there have been no other transactions of the
type required to be disclosed pursuant to Items 402 and 404 of Regulation S-K
under the Securities Act and the Exchange Act since March 1, 1996.
 
     2.18  Insurance. Medicus and each of its subsidiaries have policies of
insurance and bonds of the type and in amounts customarily carried by persons
conducting businesses or owning assets similar to those of Medicus and its
subsidiaries. There is no material claim pending under any of such policies or
bonds as to which coverage has been questioned, denied or disputed by the
underwriters of such policies or bonds. All premiums due and payable under all
such policies and bonds have been paid and Medicus and its subsidiaries are
otherwise in compliance in all material respects with the terms of such policies
and bonds. Medicus has no knowledge of any threatened termination of, or
material premium increase with respect to, any of such policies.
 
     2.19  Compliance With Laws. Each of Medicus and its subsidiaries has
complied with, are not in violation of, and have not received any notices of
violation with respect to, any federal, state, local or foreign statute, law or
regulation with respect to the conduct of its business, or the ownership or
operation of its business, except for such violations or failures to comply as
could not be reasonably expected to have a Material Adverse Effect on Medicus.
 
     2.20  Minute Books. The minute books of Medicus and its subsidiaries made
available to QuadraMed contain a complete and accurate summary of all meetings
of directors and stockholders or actions by written consent since the time of
incorporation of Medicus and the respective subsidiaries through the date of
this Agreement, and reflect all transactions referred to in such minutes
accurately in all material respects.
 
     2.21  [Intentionally Omitted].
 
     2.22  Brokers' and Finders' Fees. Medicus has not incurred, nor will it
incur without QuadraMed's prior written consent, directly or indirectly, any
liability for brokerage or finders' fees or agents' commissions or investment
bankers' fees or any similar charges in connection with this Agreement or any
transaction contemplated hereby.
 
     2.23  Registration Statement; Proxy Statement/Prospectus. The information
supplied by Medicus for inclusion in the registration statement on Form S-4 (or
such other or successor form as shall be appropriate) pursuant to which the
shares of QuadraMed Common Stock to be issued in the Merger will be registered
with the SEC (the "Registration Statement") shall not at the time the
Registration Statement (including any amendments or supplements thereto) is
declared effective by the SEC contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading. The information supplied by Medicus for
inclusion in the proxy statement/prospectus to be sent to the stockholders of
Medicus in connection with the meeting of Medicus' stockholders to consider the
Merger (the "Medicus Stockholders Meeting") (such proxy statement/prospectus as
amended or supplemented is referred to herein as the "Proxy Statement") shall
not, on the date the Proxy Statement is first mailed to Medicus' stockholders,
at the time of the Medicus Stockholders Meeting and at the Effective Time,
contain any statement which, at such time, is false or misleading with respect
to any material fact, or omit to state any material fact necessary in order to
make the statements made therein, in light of the circumstances under which they
are made, not false or misleading; or omit to state any material fact necessary
to correct any statement in any earlier communication with respect to the
solicitation of proxies for the Medicus Stockholders Meeting which has become
false or misleading. If at any time prior to the Effective Time any event or
information should be discovered by Medicus which should be set forth in an
amendment to the Registration Statement or a supplement to the Proxy Statement,
Medicus shall promptly inform QuadraMed and Merger Sub. Notwithstanding the
foregoing, Medicus makes no representation, warranty or covenant with respect to
any information supplied by QuadraMed or Merger Sub which is contained in any
documents.
 
     2.24  [Intentionally Omitted].
 
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<PAGE>   97
 
     2.25  Vote Required. The affirmative vote of the holders of a majority of
the shares of Medicus Common Stock outstanding on the record date set for the
Medicus Stockholders Meeting is the only vote of the holders of any of Medicus'
capital stock necessary to approve this Agreement and the transactions
contemplated hereby.
 
     2.26  Board Approval. The Board of Directors of Medicus has (i) unanimously
approved this Agreement and the Merger and all transactions contemplated hereby,
including the purchase of shares of Medicus Common Stock pursuant to the Stock
Purchase Agreements, (ii) determined that the Merger is in the best interests of
the stockholders of Medicus and is on terms that are fair to such stockholders
and (iii) recommended that the stockholders of Medicus approve this Agreement
and consummation of the Merger.
 
     2.27  Section 203 of the DGCL Not Applicable. The Board of Directors of
Medicus has taken all actions so that the restrictions contained in Section 203
of the DGCL applicable to a "business combination" (as defined in Section 203)
will not apply to the execution, delivery or performance of this Agreement or
the consummation of the Merger or the other transactions contemplated by this
Agreement.
 
     2.28  Customers and Suppliers. As of the date hereof, no customer which
individually accounted for more than 1% of Medicus' gross revenues during the 12
month period preceding the date hereof has indicated to Medicus that it will
stop, or decrease the rate of, buying services or products of Medicus, or has at
any time on or after May 31, 1997 decreased materially its usage of the services
or products of Medicus. As of the date hereof, no material supplier of Medicus
has indicated to Medicus that it will stop, or decrease the rate of, supplying
materials, products or services to Medicus. Medicus has not knowingly breached,
so as to provide a benefit to Medicus that was not intended by the parties, any
agreement with, or engaged in any fraudulent conduct with respect to, any
customer or supplier of Medicus.
 
     2.29  Employee Nondisclosure Agreements. Each employee of Medicus has
executed and delivered to Medicus the Standard Key Employee Nondisclosure
Agreement in the form previously delivered to QuadraMed.
 
     2.30  Representations Complete. None of the representations or warranties
made by Medicus herein or in any Schedule hereto, including Medicus Disclosure
Schedule, or certificate furnished by Medicus pursuant to this Agreement, or the
Medicus SEC Documents, when all such documents are read together in their
entirety, contains or will contain at the Effective Time any untrue statement of
a material fact, or omits or will omit at the Effective Time to state any
material fact necessary in order to make the statements contained herein or
therein, in the light of the circumstances under which made, not misleading.
 
                                  ARTICLE III
 
           REPRESENTATIONS AND WARRANTIES OF QUADRAMED AND MERGER SUB
 
     Except as disclosed in a document of even date herewith and delivered by
QuadraMed to Medicus prior to the execution and delivery of this Agreement and
referring to the representations and warranties in this Agreement (the
"QuadraMed Disclosure Schedule"), QuadraMed and Merger Sub represent and warrant
to Medicus as follows. All representations and warranties of Merger Sub set
forth below are made solely as of the Closing Date.
 
     3.1  Organization, Standing and Power. Each of QuadraMed and its
subsidiaries, including Merger Sub, is a corporation duly organized, validly
existing and in good standing under the laws of its jurisdiction of
organization. Each of QuadraMed and its subsidiaries has the corporate power to
own its properties and to carry on its business as now being conducted and is
duly qualified to do business and is in good standing in each jurisdiction in
which the failure to be so qualified and in good standing would have a Material
Adverse Effect on QuadraMed. QuadraMed has made available a true and correct
copy of the Certificate of Incorporation and Bylaws or other charter documents,
as applicable, of QuadraMed to Medicus. Neither QuadraMed nor any of its
subsidiaries is in violation of any of the provisions of its Certificate of
Incorporation or Bylaws or equivalent organizational documents. QuadraMed is the
owner of all outstanding shares of capital
 
                                      A-15
<PAGE>   98
 
stock of each of its subsidiaries and all such shares are duly authorized,
validly issued, fully paid and nonassessable. All of the outstanding shares of
capital stock of each such subsidiary are owned by QuadraMed free and clear of
all liens, charges, claims or encumbrances or rights of others. There are no
outstanding subscriptions, options, warrants, puts, calls, rights, exchangeable
or convertible securities or other commitments or agreements of any character
relating to the issued or unissued capital stock or other securities of any such
subsidiary, or otherwise obligating QuadraMed or any such subsidiary to issue,
transfer, sell, purchase, redeem or otherwise acquire any such securities.
Except as disclosed in the QuadraMed SEC Documents (as defined in Section 3.4),
QuadraMed does not directly or indirectly own any equity or similar interest in,
or any interest convertible or exchangeable or exercisable for, any equity or
similar interest in, any corporation, partnership, joint venture or other
business association or entity.
 
     3.2  Capital Structure. Except as described in this Section 3.2, the
authorized and outstanding capital stock of QuadraMed is as set forth in the
section entitled "Description of Capital Stock" in QuadraMed's Prospectus dated
October 21, 1997 as filed with the Securities and Exchange Commission and as
previously delivered to Medicus. There are no other outstanding shares of
capital stock or voting securities of QuadraMed other than shares of QuadraMed
Common Stock issued after October 21, 1997 upon the exercise of options or
warrants. The authorized capital stock of Merger Sub consists of 1,000 shares of
Common Stock, $.01 par value, all of which are issued and outstanding and are
held by QuadraMed. All outstanding shares of QuadraMed and Merger Sub have been
duly authorized, validly issued, fully paid and are nonassessable and free of
any liens or encumbrances other than any liens or encumbrances created by or
imposed upon the holders thereof. Other than pursuant to this Agreement, and
options or warrants that were outstanding as of October 21, 1997, there are no
other options, warrants, calls, rights, commitments or agreements of any
character to which QuadraMed or Merger Sub is a party or by which either of them
is bound obligating QuadraMed or Merger Sub to issue, deliver, sell, repurchase
or redeem, or cause to be issued, delivered, sold, repurchased or redeemed, any
shares of the capital stock of QuadraMed or Merger Sub or obligating QuadraMed
or Merger Sub to grant, extend or enter into any such option, warrant, call,
right, commitment or agreement. The shares of QuadraMed Common Stock to be
issued pursuant to the Merger will be duly authorized, validly issued, fully
paid, and non-assessable.
 
     3.3  Authority. QuadraMed and Merger Sub have all requisite corporate power
and authority to enter into this Agreement and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement and the
consummation of the transactions contemplated hereby have been duly authorized
by all necessary corporate action on the part of QuadraMed and Merger Sub. This
Agreement has been duly executed and delivered by QuadraMed and Merger Sub and
constitutes the valid and binding obligations of QuadraMed and Merger Sub. The
execution and delivery of this Agreement do not, and the consummation of the
transactions contemplated hereby will not, conflict with, or result in any
violation of, or default under (with or without notice or lapse of time, or
both), or give rise to a right of termination, cancellation or acceleration of
any obligation or loss of a benefit under (i) any provision of the Certificate
of Incorporation or Bylaws of QuadraMed or any of its subsidiaries, as amended,
or (ii) any material mortgage, indenture, lease, contract or other agreement or
instrument, permit, concession, franchise, license, judgment, order, decree,
statute, law, ordinance, rule or regulation applicable to QuadraMed or any of
its subsidiaries or their properties or assets, except where such conflict,
violation, default, termination, cancellation or acceleration with respect to
the foregoing provisions of (ii) would not have had and would not reasonably be
expected to have a Material Adverse Effect on QuadraMed. No consent, approval,
order or authorization of, or registration, declaration or filing with, any
Governmental Entity, is required by or with respect to QuadraMed or any of its
subsidiaries in connection with the execution and delivery of this Agreement by
QuadraMed and Merger Sub or the consummation by QuadraMed and Merger Sub of the
transactions contemplated hereby, except for (i) the filing of the Certificate
of Merger as provided in Section 1.2, (ii) the filing with the SEC of the
Registration Statement, (iii) the filing of a Form 8-K with the SEC within 15
days after the Closing Date, (iv) any filings as may be required under
applicable state securities laws and the securities laws of any foreign country,
(v) the filing with the Nasdaq National Market of a Notification Form for
Listing of Additional Shares with respect to the shares of QuadraMed Common
Stock issuable upon conversion of the Medicus Common Stock in the Merger and
upon exercise of the options under the Medicus Stock Option Plans assumed by
QuadraMed, and (vi) such other consents, authorizations, filings, approvals and
registrations which, if not obtained or made,
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<PAGE>   99
 
would not have a Material Adverse Effect on QuadraMed and would not prevent or
materially alter or delay any of the transactions contemplated by this
Agreement.
 
     3.4  SEC Documents; Financial Statements. QuadraMed has made available to
Medicus a true and complete copy of each statement, report, registration
statement (with the prospectus in the form filed pursuant to Rule 424(b) of the
Securities Act), definitive proxy statement, and other filing filed with the SEC
by QuadraMed since March 31, 1997, and, prior to the Effective Time, QuadraMed
will have furnished Medicus with true and complete copies of any additional
documents filed with the SEC by QuadraMed prior to the Effective Time
(collectively, the "QuadraMed SEC Documents"). All documents required to be
filed as exhibits to the Medicus SEC Documents have been so filed, and all
material contracts so filed as exhibits are in full force and effect, except
those which have expired in accordance with their terms, and neither QuadraMed
nor any of its subsidiaries is in default thereunder. As of their respective
filing dates, the QuadraMed SEC Documents complied in all material respects with
the requirements of the Exchange Act and the Securities Act, and none of the
QuadraMed SEC Documents contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements made therein, in light of the circumstances in which they
were made, not misleading, except to the extent corrected by a subsequently
filed QuadraMed SEC Document. The financial statements of QuadraMed, including
the notes thereto, included in the QuadraMed SEC Documents (the "QuadraMed
Financial Statements") were complete and correct in all material respects as of
their respective dates, complied as to form in all material respects with
applicable accounting requirements and with the published rules and regulations
of the SEC with respect thereto as of their respective dates, and have been
prepared in accordance with generally accepted accounting principles applied on
a basis consistent throughout the periods indicated and consistent with each
other (except as may be indicated in the notes thereto or, in the case of
unaudited statements included in Quarterly Reports on Form 10-Q, as permitted by
Form 10-Q of the SEC). The QuadraMed Financial Statements fairly present the
consolidated financial condition and operating results of QuadraMed and its
subsidiaries at the dates and during the periods indicated therein (subject, in
the case of unaudited statements, to normal, recurring year-end adjustments).
There has been no material change in QuadraMed accounting policies except as
described in the notes to the QuadraMed Financial Statements.
 
       3.5  Absence of Certain Changes. Since June 30, 1997 (the "QuadraMed
Balance Sheet Date"), QuadraMed has conducted its business in the ordinary
course consistent with past practice and there has not occurred: (i) any change,
event or condition (whether or not covered by insurance) that has resulted in,
or might reasonably be expected to result in, a Material Adverse Effect to
QuadraMed; (ii) any acquisition, sale or transfer of any material asset of
QuadraMed or any of its subsidiaries other than in the ordinary course of
business and consistent with past practice; (iii) any material change in
accounting methods or practices (including any change in depreciation or
amortization policies or rates) by QuadraMed or any revaluation by QuadraMed of
any of its assets; (iv) any declaration, setting aside, or payment of a dividend
or other distribution with respect to the shares of QuadraMed, or any direct or
indirect redemption, purchase or other acquisition by QuadraMed of any of its
shares of capital stock; or (v) any negotiation or agreement by QuadraMed or any
of its subsidiaries to do any of the things described in the preceding clauses
(i) through (iv) (other than negotiations with Medicus and its representatives
regarding the transactions contemplated by this Agreement).
 
     3.6  Absence of Undisclosed Liabilities. QuadraMed has no material
obligations or liabilities of any nature (matured or unmatured, fixed or
contingent) other than (i) those set forth or adequately provided for in the
Balance Sheet included in QuadraMed's Quarterly Report on Form 10-Q for the
period ended June 30, 1997 (the "QuadraMed Balance Sheet"), (ii) those incurred
in the ordinary course of business and not required to be set forth in the
QuadraMed Balance Sheet under generally accepted accounting principles, and
(iii) those incurred in the ordinary course of business since the QuadraMed
Balance Sheet Date and consistent with past practice.
 
     3.7  Litigation. There is no private or governmental action, suit,
proceeding, claim, arbitration or investigation pending before any agency, court
or tribunal, foreign or domestic, or, to the knowledge of QuadraMed or any of
its subsidiaries, threatened against QuadraMed or any of its subsidiaries or any
of their respective properties or any of their respective officers or directors
(in their capacities as such) that,
                                      A-17
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     individually or in the aggregate, could reasonably be expected to have a
Material Adverse Effect on QuadraMed. There is no judgment, decree or order
against QuadraMed or any of its subsidiaries or, to the knowledge of QuadraMed
or any of its subsidiaries, any of their respective directors or officers (in
their capacities as such) that could prevent, enjoin, alter or materially delay
any of the transactions contemplated by this Agreement, or that could reasonably
be expected to have a Material Adverse Effect on QuadraMed.
 
     3.8  Restrictions on Business Activities. There is no material agreement,
judgment, injunction, order or decree binding upon QuadraMed or any of its
subsidiaries which has or reasonably could be expected to have the effect of
prohibiting or materially impairing any current or future business practice of
QuadraMed or any of its subsidiaries, any acquisition of property by QuadraMed
or any of its subsidiaries or the conduct of business by QuadraMed or any of its
subsidiaries as currently conducted or as proposed to be conducted by QuadraMed
or any of its subsidiaries.
 
     3.9  Governmental Authorization. QuadraMed and each of its subsidiaries
have obtained each federal, state, county, local or foreign governmental
consent, license, permit, grant, or other authorization of a Governmental Entity
(i) pursuant to which QuadraMed or any of its subsidiaries currently operates or
holds any interest in any of its properties or (ii) that is required for the
operation of QuadraMed's or any of its subsidiaries' business or the holding of
any such interest ((i) and (ii) herein collectively called "QuadraMed
Authorizations"), and all of such QuadraMed Authorizations are in full force and
effect, except where the failure to obtain or have any of such QuadraMed
Authorizations could not reasonably be expected to have a Material Adverse
Effect on QuadraMed.
 
     3.10  Compliance With Laws. Each of QuadraMed and its subsidiaries has
complied with, are not in violation of, and have not received any notices of
violation with respect to, any federal, state, local or foreign statute, law or
regulation with respect to the conduct of its business, or the ownership or
operation of its business, except for such violations or failures to comply as
could not be reasonably expected to have a Material Adverse Effect on QuadraMed.
 
     3.11  [Intentionally Omitted].
 
     3.12  Broker's and Finders' Fees. QuadraMed has not incurred, nor will it
incur, directly or indirectly, any liability for brokerage or finders' fees or
agents' commissions or investment bankers' fees or any similar charges in
connection with this Agreement or any transaction contemplated hereby, other
than with respect to its arrangements with Jefferies & Company, Inc.
 
     3.13  Registration Statement; Proxy Statement/Prospectus. The information
supplied by QuadraMed and Merger Sub for inclusion in the Registration Statement
shall not, at the time the Registration Statement (including any amendments or
supplements thereto) is declared effective by the SEC, contain any untrue
statement of a material fact or omit to state any material fact necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading. The information supplied by QuadraMed for
inclusion in the Proxy Statement shall not, on the date the Proxy Statement is
first mailed to Medicus' stockholders, at the time of the Medicus Stockholders
Meeting and at the Effective Time, contain any statement which, at such time, is
false or misleading with respect to any material fact, or omit to state any
material fact necessary in order to make the statements therein, in light of the
circumstances under which it is made, not false or misleading; or omit to state
any material fact necessary to correct any statement in any earlier
communication with respect to the solicitation of proxies for the Medicus
Stockholders Meeting which has become false or misleading. If at any time prior
to the Effective Time any event or information should be discovered by QuadraMed
or Merger Sub which should be set forth in an amendment to the Registration
Statement or a supplement to the Proxy Statement, QuadraMed or Merger Sub will
promptly inform Medicus. Notwithstanding the foregoing, QuadraMed and Merger Sub
make no representation, warranty or covenant with respect to any information
supplied by Medicus which is contained in any of the foregoing documents.
 
     3.14  Board Approval. The Board of Directors of QuadraMed has unanimously
(i) approved this Agreement and the Merger and (ii) determined that the Merger
is in the best interests of its stockholders and is on terms that are fair to
such stockholders.
 
                                      A-18
<PAGE>   101
 
     3.15  Representations Complete. None of the representations or warranties
made by QuadraMed or Merger Sub herein or in any Schedule hereto, including the
QuadraMed Disclosure Schedule, or certificate furnished by QuadraMed or Merger
Sub pursuant to this Agreement, or the QuadraMed SEC Documents, when all such
documents are read together in their entirety, contains or will contain at the
Effective Time any untrue statement of a material fact, or omits or will omit at
the Effective Time to state any material fact necessary in order to make the
statements contained herein or therein, in the light of the circumstances under
which made, not misleading.
 
                                   ARTICLE IV
 
                      CONDUCT PRIOR TO THE EFFECTIVE TIME
 
     4.1  Conduct of Business of Medicus and QuadraMed. During the period from
the date of this Agreement and continuing until the earlier of the termination
of this Agreement or the Effective Time, each of Medicus and QuadraMed agrees
(except to the extent expressly contemplated by this Agreement or as consented
to in writing by the other), to carry on its and its subsidiaries' business in
the usual, regular and ordinary course in substantially the same manner as
heretofore conducted, to pay and to cause its subsidiaries to pay debts and
Taxes when due subject to good faith disputes over such debts or taxes, to pay
or perform other obligations when due, and to use all reasonable efforts
consistent with past practice and policies to preserve intact its and its
subsidiaries' present business organizations, use its best efforts consistent
with past practice to keep available the services of its and its subsidiaries'
present officers and key employees and use its best efforts consistent with past
practice to preserve its and its subsidiaries' relationships with customers,
suppliers, distributors, licensors, licensees, and others having business
dealings with it or its subsidiaries, to the end that its and its subsidiaries'
goodwill and ongoing businesses shall be unimpaired at the Effective Time. Each
of Medicus and QuadraMed agrees to promptly notify the other of any event or
occurrence not in the ordinary course of its or its subsidiaries' business, and
of any event which could have a Material Adverse Effect. Notwithstanding
anything in this Section 4.1 to the contrary, QuadraMed may negotiate and
consummate acquisitions of businesses or assets without providing notice to or
obtaining the consent of Medicus. Without limiting the foregoing, except as
expressly contemplated by this Agreement, neither Medicus nor QuadraMed shall
do, cause or permit any of the following, or allow, cause or permit any of its
subsidiaries to do, cause or permit any of the following, without the prior
written consent of the other:
 
          (a) Charter Documents. Cause or permit any amendments to its
     Certificate of Incorporation or Bylaws;
 
          (b) Dividends; Changes in Capital Stock. Declare or pay any dividends
     on or make any other distributions (whether in cash, stock or property) in
     respect of any of its capital stock, or split, combine or reclassify any of
     its capital stock or issue or authorize the issuance of any other
     securities in respect of, in lieu of or in substitution for shares of its
     capital stock, or repurchase or otherwise acquire, directly or indirectly,
     any shares of its capital stock except from former employees, directors and
     consultants in accordance with agreements providing for the repurchase of
          shares in connection with any termination of service to it or its
     subsidiaries; or
 
          (c) Other. Take, or agree in writing or otherwise to take, any of the
     actions described in Sections 4.1(a) and (b) above, or any action which
     would make any of its representations or warranties contained in this
     Agreement untrue or incorrect or prevent it from performing or cause it not
     to perform its covenants hereunder.
 
     4.2  Conduct of Business of Medicus. During the period from the date of
this Agreement and continuing until the earlier of the termination of this
Agreement or the Effective Time, except as expressly contemplated by this
Agreement, Medicus shall not do, cause or permit any of the following, or allow,
cause or permit any of its subsidiaries to do, cause or permit any of the
following, without the prior written consent of QuadraMed, which consent shall
not be unreasonably withheld:
 
          (a) Material Contracts. Enter into any contract or commitment, or
     violate, amend or otherwise modify or waive any of the terms of any of its
     contracts, other than in the ordinary course of business
                                      A-19
<PAGE>   102
 
     consistent with past practice and in no event shall such contract,
     commitment, amendment, modification or waiver be in excess of $250,000;
 
          (b) Issuance of Securities. Issue, deliver or sell or authorize or
     propose the issuance, delivery or sale of, or purchase or propose the
     purchase of, any shares of its capital stock or securities convertible
     into, or subscriptions, rights, warrants or options to acquire, or other
     agreements or commitments of any character obligating it to issue any such
     shares or other convertible securities, other than the issuance of shares
     of its Common Stock pursuant to the exercise of stock options, warrants or
     other rights therefor outstanding as of the date of this Agreement, except
     pursuant to the Medicus 1997 Directors' Stock Option Plan as currently in
     effect;
 
          (c) Stock Option Plans, Etc. Accelerate, amend or change the period of
     exercisability or vesting of options or other rights granted under its
     employee stock plans or director stock plans or authorize cash payments in
     exchange for any options or other rights granted under any of such plans;
 
          (d) Intellectual Property. Transfer to any person or entity any rights
     to its Intellectual Property other than in the ordinary course of business
     consistent with past practice;
 
          (e) Exclusive Rights. Enter into or amend any agreements pursuant to
     which any other party is granted exclusive marketing or other exclusive
     rights of any type or scope with respect to any of its products or
     technology;
 
   
          (e) Dispositions. Sell, lease, license or otherwise dispose of or
     encumber any of its properties or assets which are material, individually
     or in the aggregate, to its and its subsidiaries' business, taken as a
     whole, except in the ordinary course of business consistent with past
     practice;
    
 
          (g) Indebtedness. Incur any indebtedness for borrowed money or
     guarantee any such indebtedness or issue or sell any debt securities or
     guarantee any debt securities of others;
 
          (h) Leases. Enter into any operating lease in excess of an aggregate
     of $10,000;
 
          (i) Payment of Obligations. Pay, discharge or satisfy in an amount in
     excess of $10,000 in any one case or $100,000 in the aggregate, any claim,
     liability or obligation (absolute, accrued, asserted or unasserted,
     contingent or otherwise) arising other than in the ordinary course of
     business, other than the payment, discharge or satisfaction of liabilities
     reflected or reserved against in the Medicus Financial Statements;
 
          (j) Capital Expenditures. Make any capital expenditures, capital
     additions or capital improvements except in the ordinary course of business
     and consistent with past practice;
 
          (k) Insurance. Materially reduce the amount of any material insurance
     coverage provided by existing insurance policies;
 
          (l) Employee Benefit Plans; New Hires; Pay Increases. Adopt or amend
     any employee benefit or stock purchase or option plan, or hire any new
     director level or officer level employee (except that it may hire a
     replacement for any current director level or officer level employee if it
     first provides QuadraMed advance notice regarding such hiring decision),
     pay any special bonus or special remuneration to any employee or director,
     or increase the salaries or wage rates of its employees;
 
          (m) Severance Arrangements. Grant any severance or termination pay (i)
     to any director or officer or (ii) to any other employee except (A)
     payments made pursuant to standard written agreements outstanding on the
     date hereof or (B) grants which are made in the ordinary course of business
     in accordance with its standard past practice;
 
          (n) Lawsuits. Commence a lawsuit other than (i) for the routine
     collection of bills, (ii) in such cases where it in good faith determines
     that failure to commence suit would result in the material impairment of a
     valuable aspect of its business, provided that it consults with QuadraMed
     prior to the filing of such a suit, or (iii) for a breach of this
     Agreement;
 
                                      A-20
<PAGE>   103
 
          (o) Acquisitions. Acquire or agree to acquire by merging or
     consolidating with, or by purchasing a substantial portion of the assets
     of, or by any other manner, any business or any corporation, partnership,
     association or other business organization or division thereof, or
     otherwise acquire or agree to acquire any assets which are material,
     individually or in the aggregate, to its and its subsidiaries' business,
     taken as a whole, or acquire or agree to acquire any equity securities of
     any corporation, partnership, association or business organization;
 
          (p) Taxes. Other than in the ordinary course of business, make or
     change any material election in respect of Taxes, adopt or change any
     accounting method in respect of Taxes, file any material Tax Return or any
     amendment to a material Tax Return, enter into any closing agreement,
     settle any claim or assessment in respect of Taxes, or consent to any
     extension or waiver of the limitation period applicable to any claim or
     assessment in respect of Taxes;
 
          (q) Notices. Fail to give all notices and other information required
     to be given to the employees of Medicus, any collective bargaining unit
     representing any group of employees of Medicus, and any applicable
     government authority under the WARN Act, the National Labor Relations Act,
     the Internal Revenue Code, the Consolidated Omnibus Budget Reconciliation
     Act, and other applicable law in connection with the transactions provided
     for in this Agreement;
 
          (r) Revaluation. Revalue any of its assets, including without
     limitation writing down the value of inventory or writing off notes or
     accounts receivable other than in the ordinary course of business; or
 
          (s) Other. Take or agree in writing or otherwise to take, any of the
     actions described in Sections 4.2(a) through (r) above, or any action which
     would make any of its representations or warranties contained in this
     Agreement untrue or incorrect or prevent it from performing.
 
     4.3  No Solicitation. Medicus and its subsidiaries and the officers,
directors, employees or other agents of Medicus and its subsidiaries will not,
directly or indirectly, (i) take any action to solicit, initiate or encourage
any Takeover Proposal (defined below) or (ii) subject to the terms of the
immediately following sentence, engage in negotiations with, or disclose any
nonpublic information relating to Medicus or any of it subsidiaries to, or
afford access to the properties, books or records of Medicus or any of its
subsidiaries to, any person that has advised Medicus that it may be considering
making, or that has made, a Takeover Proposal; provided, however, that nothing
herein shall prohibit Medicus' Board of Directors from taking and disclosing to
Medicus' stockholders a position with respect to a tender offer pursuant to
Rules 14d-9 and 14e-2 promulgated under the Exchange Act. Notwithstanding the
immediately preceding sentence, if an unsolicited Takeover Proposal, or an
unsolicited written expression of interest that can reasonably be expected to
lead to a Takeover Proposal, shall be received by the Board of Directors of
Medicus, then, to the extent the Board of Directors of Medicus believes in good
faith (after consultation with its financial advisor) that such Takeover
Proposal would, if consummated, result in a transaction more favorable to
Medicus' stockholders from a financial point of view than the transaction
contemplated by the Agreement (any such more favorable Takeover Proposal being
referred to in this Agreement as a "Superior Proposal") and the Board of
Directors of Medicus determines in good faith after consultation with outside
legal counsel that it is necessary for the Board of Directors of Medicus to
comply with its fiduciary duties to stockholders under applicable law, Medicus
and its officers, directors, employees, investment bankers, financial advisors,
attorneys, accountants and other representatives retained by it may furnish in
connection therewith information and take such other actions as are consistent
with the fiduciary obligations of Medicus' Board of Directors, and such actions
shall not be considered a breach of this Section 4.3 or any other provisions of
this Agreement, provided that in each such event Medicus notifies QuadraMed of
such determination by the Medicus Board of Directors and provides QuadraMed with
a true and complete copy of the Superior Proposal received from such third
party, if the Superior Proposal is in writing, or a complete written summary
thereof, if it is not in writing, and provides QuadraMed with all documents
containing or referring to non-public information of Medicus that are supplied
to such third party; provided further, that (A) the Board of Directors of
Medicus has determined, with the advice of Medicus' investment bankers, that
such third party is capable of making a Superior Proposal upon satisfactory
completion of such third party's review of the information supplied by Medicus,
(B) the third party has stated that it intends to make a Superior Proposal, (C)
Medicus may not provide any non-public
 
                                      A-21
<PAGE>   104
 
information to any such third party if it has not prior to the date thereof
provided such information to QuadraMed or QuadraMed's representatives, (D)
Medicus notifies QuadraMed in advance of any disclosure of non-public
information to any such third party, with a description of the information
proposed to be disclosed, and (E) Medicus provides such non-public information
pursuant to a non-disclosure agreement at least as restrictive as the
Confidentiality Agreement (as defined in Section 5.4). Medicus will promptly
notify QuadraMed after receipt of any Takeover Proposal or any notice that any
person is considering making a Takeover Proposal or any request for non-public
information relating to Medicus or any of its subsidiaries or for access to the
properties, books or records of Medicus or any of its subsidiaries by any person
that has advised Medicus that it may be considering making, or that has made, a
Takeover Proposal and will keep QuadraMed fully informed of the status and
details of any such Takeover Proposal notice, request or any correspondence or
communications related thereto and shall provide QuadraMed with a true and
complete copy of such Takeover Proposal notice or request or correspondence or
communications related thereto, if it is in writing, or a complete written
summary thereof, if it is not in writing. For purposes of this Agreement,
"Takeover Proposal" means any offer or proposal for, or any indication of
interest in, a merger or other business combination involving Medicus or any of
its subsidiaries or the acquisition of any significant equity interest in, or a
significant portion of the assets of, Medicus or any of its subsidiaries, other
than the transactions contemplated by this Agreement.
 
                                   ARTICLE V
 
                             ADDITIONAL AGREEMENTS
 
     5.1  Proxy Statement/Prospectus; Registration Statement. As promptly as
practicable after the execution of this Agreement, Medicus and QuadraMed shall
prepare, and Medicus shall file with the SEC, preliminary proxy materials
relating to the approval of the Merger and the transactions contemplated hereby
by the stockholders of Medicus and, as promptly as practicable following receipt
of SEC comments thereon, QuadraMed shall file with the SEC a Registration
Statement on Form S-4 (or such other or successor form as shall be appropriate),
which complies in form with applicable SEC requirements and shall use all
reasonable efforts to cause the Registration Statement to become effective as
soon thereafter as practicable. Subject to the provisions of Section 4.3, the
Proxy Statement shall include the recommendation of the Board of Directors of
Medicus in favor of the Merger; provided that such recommendation may not be
included or may be withdrawn if previously included if Medicus' Board of
Directors believes in good faith that a Superior Proposal has been made and,
upon written advice of its outside legal counsel, shall determine that to
include such recommendation or not withdraw such recommendation if previously
included would constitute a breach of the Board's fiduciary duty under
applicable law.
 
     5.2  Meeting of Stockholders.
 
     (a) Medicus shall promptly after the date hereof take all action necessary
in accordance with the DGCL and its Certificate of Incorporation and Bylaws to
convene the Medicus Stockholders Meeting within 45 days of the Registration
Statement being declared effective by the SEC. Medicus shall consult with
QuadraMed regarding the date of the Medicus Stockholders Meeting and use all
reasonable efforts and shall not postpone or adjourn (other than for the absence
of a quorum) the Medicus Stockholders Meeting without the consent of QuadraMed.
Subject to Section 5.1, Medicus shall use its best efforts to solicit from
stockholders of Medicus proxies in favor of the Merger and shall take all other
action necessary or advisable to secure the vote or consent of stockholders
required to effect the Merger.
 
     (b) QuadraMed shall vote or cause to be voted all shares of Medicus Common
Stock owned by QuadraMed in favor of the Merger.
 
     5.3  Access to Information.
 
     (a) Medicus shall afford QuadraMed and its accountants, counsel and other
representatives, reasonable access during normal business hours during the
period prior to the Effective Time to (i) all of Medicus' and its subsidiaries'
properties, books, contracts, commitments and records, and (ii) all other
information concerning the business, properties and personnel of Medicus and its
subsidiaries as QuadraMed may reasonably request.
                                      A-22
<PAGE>   105
 
Medicus agrees to provide to QuadraMed and its accountants, counsel and other
representatives copies of internal financial statements promptly upon request.
QuadraMed shall afford Medicus and its accountants, counsel and other
representatives, reasonable access during normal business hours during the
period prior to the Effective Time to (i) all of QuadraMed's and its
subsidiaries' properties, books, contracts, commitments and records, and (ii)
all other information concerning the business, properties and personnel of
QuadraMed and its subsidiaries as Medicus may reasonably request. QuadraMed
agrees to provide to Medicus and its accountants, counsel and other
representatives copies of internal financial statements promptly upon request.
 
     (b) Subject to compliance with applicable law, from the date hereof until
the Effective Time, each of QuadraMed and Medicus shall confer on a regular and
frequent basis with one or more representatives of the other party to report
operational matters of materiality and the general status of ongoing operations.
 
     (c) No information or knowledge obtained in any investigation pursuant to
this Section 5.3 shall affect or be deemed to modify any representation or
warranty contained herein or the conditions to the obligations of the parties to
consummate the Merger.
 
     5.4  Confidentiality. The parties acknowledge that each of QuadraMed and
Medicus has previously executed a non-disclosure agreement (the "Confidentiality
Agreement"), which Confidentiality Agreement shall continue in full force and
effect in accordance with its terms.
 
     5.5  Public Disclosure. Unless otherwise permitted by this Agreement,
QuadraMed and Medicus shall consult with each other before issuing any press
release or otherwise making any public statement or making any other public (or
non-confidential) disclosure (whether or not in response to an inquiry)
regarding the terms of this Agreement and the transactions contemplated hereby,
and neither shall issue any such press release or make any such statement or
disclosure without the prior approval of the other (which approval shall not be
unreasonably withheld), except as may be required by law or by obligations
pursuant to any listing agreement with any national securities exchange or with
the NASD.
 
     5.6  Consents; Cooperation. Each of QuadraMed and Medicus shall use its
best efforts to obtain all necessary consents, waivers and approvals under any
of its material contracts in connection with the Merger for the assignment
thereof or otherwise.
 
     5.7  Affiliate Agreements. Schedule 5.7 sets forth those persons who may be
deemed "Affiliates" of Medicus within the meaning of Rule 145 promulgated under
the Securities Act ("Rule 145"). Medicus shall provide QuadraMed such
information and documents as QuadraMed shall reasonably request for purposes of
reviewing such list. Medicus shall use its best efforts to deliver or cause to
be delivered to QuadraMed, concurrently with the execution of this Agreement
(and in each case prior to the Effective Time) from each of the Affiliates of
Medicus, an executed Affiliate Agreement in the form attached hereto as Exhibit
A. QuadraMed and Merger Sub shall be entitled to place appropriate legends on
the certificates evidencing any QuadraMed Common Stock to be received by such
Affiliates of Medicus pursuant to the terms of this Agreement, and to issue
appropriate stop transfer instructions to the transfer agent for QuadraMed
Common Stock, consistent with the terms of such Affiliates Agreements.
 
     5.8  [Intentionally Omitted].
 
     5.9  Legal Requirements. Each of QuadraMed, Merger Sub and Medicus will,
and will cause their respective subsidiaries to, take all reasonable actions
necessary to comply promptly with all legal requirements which may be imposed on
them with respect to the consummation of the transactions contemplated by this
Agreement and will promptly cooperate with and furnish information to any party
hereto necessary in connection with any such requirements imposed upon such
other party in connection with the consummation of the transactions contemplated
by this Agreement and will take all reasonable actions necessary to obtain (and
will cooperate with the other parties hereto in obtaining) any consent,
approval, order or authorization of, or any registration, declaration or filing
with, any Governmental Entity or other person, required to be obtained or made
in connection with the taking of any action contemplated by this Agreement.
 
     5.10  Blue Sky Laws. QuadraMed shall take such steps as may be necessary to
comply with the securities and blue sky laws of all jurisdictions which are
applicable to the issuance of the QuadraMed
 
                                      A-23
<PAGE>   106
 
Common Stock in connection with the Merger. Medicus shall use its best efforts
to assist QuadraMed as may be necessary to comply with the securities and blue
sky laws of all jurisdictions which are applicable in connection with the
issuance of QuadraMed Common Stock in connection with the Merger.
 
     5.11  Treatment of Employee Benefit Plans and Outstanding Warrants.
 
     (a) At the Effective Time, the Medicus Stock Option Plans and each
outstanding option to purchase shares of Medicus Common Stock under the Medicus
Stock Option Plans, whether vested or unvested, the Jelinek Warrants and the
TriHealth Warrant will be assumed by QuadraMed. Schedule 5.11 hereto sets forth
a true and complete list as of the date hereof of all holders of outstanding
options under the Medicus Stock Option Plans, including the number of shares of
Medicus capital stock subject to each such option, the exercise or vesting
schedule, the exercise price per share and the term of each such option. On the
Closing Date, Medicus shall deliver to QuadraMed an updated Schedule 5.11 hereto
current as of such date.
 
     (b) Each such option so assumed by QuadraMed under this Agreement shall
continue to have, and be subject to, the same terms and conditions set forth in
the Medicus Stock Option Plans, and each of the Jelinek Warrants and the
TriHealth Warrant shall continue to have, and be subject to, the same terms and
conditions set forth therein, immediately prior to the Effective Time, except
that (i) each such option and each such warrant will be exercisable for that
number of whole shares of QuadraMed Common Stock equal to the product of the
number of shares of Medicus Common Stock that were issuable upon exercise of
such option or warrant immediately prior to the Effective Time multiplied by
0.3565 and rounded down to the nearest whole number of shares of QuadraMed
Common Stock, and (ii) the per share exercise price for the shares of QuadraMed
Common Stock issuable upon exercise of such assumed option or warrant will be
equal to the quotient determined by dividing the exercise price per share of
Medicus Common Stock at which such option or warrant was exercisable immediately
prior to the Effective Time by 0.3565, rounded up to the nearest whole cent.
 
     (c) Consistent with the terms of the Medicus Stock Option Plans and the
documents governing the outstanding options under those Plans, the Merger will
not terminate any of the outstanding options under such Plans or accelerate the
exercisability or vesting of such options or the shares of QuadraMed Common
Stock which will be subject to those options upon the QuadraMed's assumption of
the options in the Merger. Within 10 business days after the Effective Time,
QuadraMed will issue to each person who, immediately prior to the Effective Time
was a holder of an outstanding option under the Medicus Stock Option Plans a
document in form and substance satisfactory to Medicus evidencing the foregoing
assumption of such option by QuadraMed.
 
     (d) For purposes of QuadraMed employee benefit plans, Medicus employees
will receive full credit for years of service with Medicus.
 
     5.12  Letter of QuadraMed's and Medicus' Accountants.
 
     (a) QuadraMed shall use all reasonable efforts to cause to be delivered to
Medicus a Procedures Letter of QuadraMed's independent auditors, dated a date
within two business days before the date on which the Registration Statement
shall become effective and addressed to Medicus, in form reasonably satisfactory
to Medicus and customary in scope and substance for letters delivered by
independent public accountants in connection with registration statements
similar to the Registration Statement.
 
     (b) Medicus shall use all reasonable efforts to cause to be delivered to
QuadraMed a Procedures Letter of Medicus' independent auditors, dated a date
within two business days before the date on which the Registration Statement
shall become effective and addressed to QuadraMed, in form reasonably
satisfactory to QuadraMed and customary in scope and substance for letters
delivered by independent public accountants in connection with registration
statements similar to the Registration Statement.
 
     5.13  Form S-8. QuadraMed agrees to file, no later than thirty (30) days
after the Closing, a registration statement on Form S-8 covering the shares of
QuadraMed Common Stock issuable pursuant to outstanding options under the
Medicus Stock Option Plans assumed by QuadraMed and the shares of
 
                                      A-24
<PAGE>   107
 
QuadraMed Common Stock issuable pursuant to the Jelinek Warrants. Medicus shall
cooperate with and assist QuadraMed in the preparation of such registration
statement.
 
     5.14  Listing of Additional Shares. Prior to the Effective Time, QuadraMed
shall file with the Nasdaq National Market a Notification Form for Listing of
Additional Shares with respect to the shares referred to in Section 6.1(e).
 
     5.15  Nasdaq Quotation. Medicus and QuadraMed agree to continue the
quotation of Medicus Common Stock and QuadraMed Common Stock, respectively, on
the Nasdaq National Market during the term of the Agreement.
 
     5.16  Indemnification.
 
     (a) After the Effective Time, QuadraMed will, and will cause the Surviving
Corporation to, indemnify and hold harmless the present and former officers,
directors, employees and agents of Medicus (the "Indemnified Parties") in
respect of acts or omissions occurring on or prior to the Effective Time to the
extent permitted by law and to the extent provided under Medicus' Certificate of
Incorporation and Bylaws or any indemnification agreement with Medicus' officers
and directors to which Medicus is a party, in each case in effect on the date
hereof; provided, however, that such indemnification shall be subject to any
limitation imposed from time to time under applicable law. Without limitation of
the foregoing, in the event any such Indemnified Party is or becomes involved in
any capacity in any action, proceeding or investigation in connection with any
matter relating to this Agreement or the transactions contemplated hereby
occurring on or prior to the Effective Time, QuadraMed shall, or shall cause the
Surviving Corporation to, pay as incurred such Indemnified Party's reasonable
legal and other expenses (including the cost of any investigation and
preparation) incurred in connection therewith to the extent permitted by law and
to the extent provided under Medicus' Certificate of Incorporation and Bylaws or
the indemnification agreement with such Indemnified Party.
 
     (b) For two years after the Effective Time, QuadraMed will, or will cause
the Surviving Corporation to, use its best efforts to provide officers' and
directors' liability insurance in respect of acts or omissions occurring on or
prior to the Effective Time covering each such person currently covered by
Medicus' officers' and directors' liability insurance policy on terms
substantially similar to those of such policy in effect on the date hereof;
provided, however, that in satisfying its obligation under this Section 5.16,
QuadraMed shall not be obligated to, or to cause the Surviving Corporation to,
pay premiums in excess of 150% of the amount per annum Medicus paid in its last
full fiscal year, which amount has been disclosed to QuadraMed, and if the
Surviving Corporation is unable to obtain the insurance required by this Section
5.16, it shall obtain as much comparable insurance as possible for an annual
premium equal to such maximum amount.
 
     (c) To the extent there is any claim, action, suit, proceeding or
investigation (whether arising before or after the Effective Time) against an
Indemnified Party that arises out of or pertains to any action or omission in
his or her capacity as a director, officer, employee, fiduciary or agent of
Medicus occurring prior to the Effective Time, or arises out of or pertains to
the transactions contemplated by this Agreement for a period of two years after
the Effective Time (whether arising before or after the Effective Time), such
Indemnified Party shall be entitled to be represented by counsel and following
the Effective Time (i) any counsel retained by the Indemnified Parties shall be
reasonably satisfactory to the Surviving Corporation and QuadraMed, (ii) the
Surviving Corporation and QuadraMed shall pay the reasonable fees and expenses
of such counsel, promptly after statements therefor are received and (iii) the
Surviving Corporation and QuadraMed will cooperate in the defense of any such
matter; provided, however, that neither the Surviving Corporation nor QuadraMed
shall be liable for any settlement effected without its written consent (which
consent shall not be unreasonably withheld); and provided, further, however,
that in the event that any claim or claim for indemnification are asserted or
made within such two-year period, all rights to indemnification in respect of
any such claim or claims shall continue until the disposition of any and all
such claims. The Indemnified Parties as a group may retain only one law firm (in
addition to local counsel) to represent them with respect to any single action
unless there is, under applicable standards of professional conduct, a conflict
on any significant issue between the positions of any two or more Indemnified
Parties.
 
                                      A-25
<PAGE>   108
 
     (d) The provisions of this Section 5.16 are intended to be for the benefit
of, and shall be enforceable by, each Indemnified Party and his or her heirs and
representatives.
 
     5.17  Reasonable Best Efforts and Further Assurances. Each of the parties
to this Agreement shall use its reasonable best efforts to effectuate the
transactions contemplated hereby and to fulfill and cause to be fulfilled the
conditions to closing under this Agreement. Each party hereto, at the reasonable
request of another party hereto, shall execute and deliver such other
instruments and do and perform such other acts and things as may be necessary or
desirable for effecting completely the consummation of this Agreement and the
transactions contemplated hereby.
 
                                   ARTICLE VI
 
                            CONDITIONS TO THE MERGER
 
     6.1  Conditions to Obligations of Each Party to Effect the Merger. The
respective obligations of each party to this Agreement to consummate and effect
this Agreement and the transactions contemplated hereby shall be subject to the
satisfaction at or prior to the Effective Time of each of the following
conditions, any of which may be waived, in writing, by agreement of all the
parties hereto:
 
          (a) Stockholder Approval. This Agreement and the Merger shall have
     been approved and adopted by the holders of a majority of the shares of
     Medicus Common Stock outstanding as of the record date set for the Medicus
     Stockholders Meeting.
 
          (b) Registration Statement Effective. The SEC shall have declared the
     Registration Statement effective. No stop order suspending the
     effectiveness of the Registration Statement or any part thereof shall have
     been issued and no proceeding for that purpose, and no similar proceeding
     in respect of the Proxy Statement, shall have been initiated or threatened
     by the SEC; and all requests for additional information on the part of the
     SEC shall have been complied with to the reasonable satisfaction of the
     parties hereto.
 
          (c) No Injunctions or Restraints; Illegality. No temporary restraining
     order, preliminary or permanent injunction or other order issued by any
     court of competent jurisdiction or other legal or regulatory restraint or
     prohibition preventing the consummation of the Merger shall be in effect,
     nor shall any proceeding brought by an administrative agency or commission
     or other governmental authority or instrumentality, domestic or foreign,
     seeking any of the foregoing be pending; nor shall there be any action
     taken, or any statute, rule, regulation or order enacted, entered, enforced
     or deemed applicable to the Merger, which makes the consummation of the
     Merger illegal. In the event an injunction or other order shall have been
     issued, each party agrees to use its reasonable diligent efforts to have
     such injunction or other order lifted.
 
   
          (c) Governmental Approval. QuadraMed, Medicus and Merger Sub and their
     respective subsidiaries shall have timely obtained from each Governmental
     Entity all approvals, waivers and consents, if any, necessary for
     consummation of or in connection with the Merger and the several
     transactions contemplated hereby, including such approvals, waivers and
     consents as may be required under the Securities Act and under state Blue
     Sky laws.
    
 
   
          (d) Listing of Additional Shares. The filing with the Nasdaq National
     Market of a Notification Form for Listing of Additional Shares with respect
     to the shares of QuadraMed Common Stock issuable upon conversion of the
     Medicus Common Stock in the Merger and upon exercise of the options under
     the Medicus Stock Option Plans assumed by QuadraMed shall have been made.
    
 
     6.2  Additional Conditions to Obligations of Medicus. The obligations of
Medicus to consummate and effect this Agreement and the transactions
contemplated hereby shall be subject to the satisfaction at or prior to the
Effective Time of each of the following conditions, any of which may be waived,
in writing, by Medicus:
 
          (a) Representations, Warranties and Covenants. (i) The representations
     and warranties of QuadraMed and Merger Sub in this Agreement shall be true
     and correct in all material respects (except
 
                                      A-26
<PAGE>   109
 
     for such representations and warranties that are qualified by their terms
     by a reference to materiality which representations and warranties as so
     qualified shall be true in all respects) on and as of the Effective Time as
     though such representations and warranties were made on and as of such time
     and (ii) QuadraMed and Merger Sub shall have performed and complied in all
     material respects with all covenants, obligations and conditions of this
     Agreement required to be performed and complied with by them as of the
     Effective Time.
 
          (b) Certificate of QuadraMed. Medicus shall have been provided with a
     certificate executed on behalf of QuadraMed by its President and its Chief
     Financial Officer to the effect that, as of the Effective Time:
 
             (i) all representations and warranties made by QuadraMed and Merger
        Sub under this Agreement are true and complete in all material respects;
        and
 
             (ii) all covenants, obligations and conditions of this Agreement to
        be performed by QuadraMed and Merger Sub on or before such date have
        been so performed in all material respects.
 
          (c) No Material Adverse Changes. There shall not have occurred any
     material adverse change in the condition (financial or otherwise),
     properties, assets (including intangible assets), liabilities, business,
     operations, results of operations or prospects of QuadraMed and its
     subsidiaries, taken as a whole.
 
          (d) Third Party Consents. Medicus shall have been furnished with
     evidence satisfactory to it of the consent or approval of those persons
     whose consent or approval shall be required in connection with the Merger
     under any material contract of QuadraMed or any of its subsidiaries or
     otherwise.
 
          (e) Injunctions or Restraints on Conduct of Business. No temporary
     restraining order, preliminary or permanent injunction or other order
     issued by any court of competent jurisdiction or other legal or regulatory
     restraint provision limiting or restricting QuadraMed's business following
     the Merger shall be in effect, nor shall any proceeding brought by an
     administrative agency or commission or other Governmental Entity, domestic
     or foreign, seeking the foregoing be pending.
 
     6.3  Additional Conditions to the Obligations of QuadraMed and Merger
Sub. The obligations of QuadraMed and Merger Sub to consummate and effect this
Agreement and the transactions contemplated hereby shall be subject to the
satisfaction at or prior to the Effective Time of each of the following
conditions, any of which may be waived, in writing, by QuadraMed:
 
          (a) Representations, Warranties and Covenants. (i) The representations
     and warranties of Medicus in this Agreement shall be true and correct in
     all material respects (except for such representations and warranties that
     are qualified by their terms by a reference to materiality, which
     representations and warranties as so qualified shall be true in all
     respects) on and as of the Effective Time as though such representations
     and warranties were made on and as of such time and (ii) Medicus shall have
     performed and complied in all material respects with all covenants,
     obligations and conditions of this Agreement required to be performed and
     complied with by it as of the Effective Time.
 
          (b) Certificate of Medicus. QuadraMed shall have been provided with a
     certificate executed on behalf of Medicus by its President and its Chief
     Financial Officer to the effect that, as of the Effective Time:
 
             (i) all representations and warranties made by Medicus under this
        Agreement are true and complete in all material respects; and
 
             (ii) all covenants, obligations and conditions of this Agreement to
        be performed by Medicus on or before such date have been so performed in
        all material respects.
 
          (c) Third Party Consents. QuadraMed shall have been furnished with
     evidence satisfactory to it of the consent or approval of those persons
     whose consent or approval shall be required in connection with the Merger
     under any material contract of Medicus or any of its subsidiaries or
     otherwise.
 
                                      A-27
<PAGE>   110
 
          (d) Injunctions or Restraints on Conduct of Business. No temporary
     restraining order, preliminary or permanent injunction or other order
     issued by any court of competent jurisdiction or other legal or regulatory
     restraint provision limiting or restricting QuadraMed's conduct or
     operation of the business of Medicus and its subsidiaries, following the
     Merger shall be in effect, nor shall any proceeding brought by an
     administrative agency or commission or other Governmental Entity, domestic
     or foreign, seeking the foregoing be pending.
 
          (e) No Material Adverse Changes. There shall not have occurred any
     material adverse change in the condition (financial or otherwise),
     properties, assets (including intangible assets), liabilities, business,
     operations, results of operations or prospects of Medicus and its
     subsidiaries, taken as a whole.
 
          (f) Affiliate Agreements. QuadraMed shall have received from each of
     the Affiliates of Medicus an executed Affiliate Agreement in substantially
     the form attached hereto as Exhibit A.
 
                                  ARTICLE VII
 
                       TERMINATION, AMENDMENT AND WAIVER
 
     7.1  Termination. At any time prior to the Effective Time, whether before
or after approval of the matters presented in connection with the Merger by the
stockholders of Medicus, this Agreement may be terminated:
 
          (a) by mutual consent of QuadraMed and Medicus;
 
          (b) by either QuadraMed or Medicus, if, without fault of the
     terminating party, the Closing shall not have occurred on or before May 1,
     1998 (or such later date as may be agreed upon in writing by the parties
     hereto);
 
          (c) by QuadraMed, if (i) Medicus shall breach any of its
     representations, warranties or obligations hereunder and such breach shall
     not have been cured within ten business days of receipt by Medicus of
     written notice of such breach or (ii) the Board of Directors of Medicus
     shall have withdrawn or modified its recommendation of this Agreement or
     the Merger in a manner adverse to QuadraMed or shall have resolved to do
     any of the foregoing;
 
          (d) by Medicus, if QuadraMed shall breach any of its representations,
     warranties or obligations hereunder and such breach shall not have been
     cured within ten days following receipt by QuadraMed of written notice of
     such breach;
 
          (e) by either QuadraMed or Medicus if (i) any permanent injunction or
     other order of a court or other competent authority preventing the
     consummation of the Merger shall have become final and nonappealable or
     (ii) if any required approval of the stockholders of Medicus shall not have
     been obtained by reason of the failure to obtain the required vote upon a
     vote held at a duly held meeting of stockholders or at any adjournment
     thereof.
 
     7.2   Effect of Termination. In the event of termination of this Agreement
as provided in Section 7.1, this Agreement shall forthwith become void and there
shall be no liability or obligation on the part of QuadraMed, Merger Sub or
Medicus or their respective officers, directors, stockholders or affiliates,
except to the extent that such termination results from the breach by a party
hereto of any of its representations, warranties or covenants set forth in this
Agreement; provided that, the provisions of Section 5.4 (Confidentiality),
Section 7.3 (Expenses) and this Section 7.2 shall remain in full force and
effect and survive any termination of this Agreement.
 
     7.3  Expenses.
 
     (a) Subject to subsection (b) of this Section 7.3, whether or not the
Merger is consummated, all costs and expenses incurred in connection with this
Agreement and the transactions contemplated hereby (including, without
limitation, the fees and expenses of its advisers, accountants and legal
counsel) shall be paid by the party incurring such expense, except that expenses
incurred in connection with printing the Proxy
 
                                      A-28
<PAGE>   111
 
     Materials and the Registration Statement, registration and filing fees
incurred in connection with the Registration Statement, the Proxy Materials and
the listing of additional shares pursuant to Section 6.1(e) and fees, costs and
expenses associated with compliance with applicable state securities laws in
connection with the Merger shall be paid by QuadraMed.
 
     (b) In the event that (i) QuadraMed shall terminate this Agreement pursuant
to Section 7.1(c) or (ii) QuadraMed shall terminate this Agreement pursuant to
Section 7.1(e)(ii) (but only in the event that all of the shares owned by
QuadraMed are voted in favor of the Merger), Medicus shall promptly reimburse
QuadraMed for all of the out-of-pocket costs and expenses incurred by QuadraMed
in connection with this Agreement and the transactions contemplated hereby
(including, without limitation, the fees and expenses of its advisors,
accountants and legal counsel).
 
     7.4  Amendment. The boards of directors of the parties hereto may cause
this Agreement to be amended at any time by execution of an instrument in
writing signed on behalf of each of the parties hereto; provided that an
amendment made subsequent to adoption of the Agreement by the stockholders of
Medicus or Merger Sub shall not (i) alter or change the amount or kind of
consideration to be received on conversion of the Medicus Common Stock, (ii)
alter or change any term of the Certificate of Incorporation of the Surviving
Corporation to be effected by the Merger, or (iii) alter or change any of the
terms and conditions of the Agreement if such alteration or change would
adversely affect the holders of Medicus Common Stock or Merger Sub Common Stock.
 
     7.5  Extension; Waiver. At any time prior to the Effective Time any party
hereto may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the representations and warranties made to such
party contained herein or in any document delivered pursuant hereto and (iii)
waive compliance with any of the agreements or conditions for the benefit of
such party contained herein. Any agreement on the part of a party hereto to any
such extension or waiver shall be valid only if set forth in an instrument in
writing signed on behalf of such party.
 
                                  ARTICLE VIII
 
                               GENERAL PROVISIONS
 
   
     8.1  Non-Survival at Effective Time. The representations, warranties and
agreements set forth in this Agreement shall terminate at the Effective Time,
except that the agreements set forth in Article I, Section 5.4
(Confidentiality), 5.7 (Affiliates), 5.11 (Employee Benefit Plans), 5.13 (Form
S-8), 5.19 (Reasonable Best Efforts and Further Assurances), 7.3 (Expenses), 7.4
(Amendment), and this Article VIII shall survive the Effective Time.
    
 
     8.2  Notices. All notices and other communications hereunder shall be in
writing and shall be deemed given if delivered personally or by commercial
delivery service, or mailed by registered or certified mail (return receipt
requested) or sent via facsimile (with confirmation of receipt) to the parties
at the following address (or at such other address for a party as shall be
specified by like notice):
 
        (a) if to QuadraMed or Merger Sub, to:
 
               QuadraMed Corporation
               80 E. Sir Francis Drake Blvd., Suite 2A
               Larkspur, CA 94939
               Attention: Keith M. Roberts, Esq.
                 Vice President and General Counsel
               Facsimile No.: (415) 464-3953
               Telephone No.: (415) 461-7725
 
                                      A-29
<PAGE>   112
 
           with a copy to:
 
                    Brobeck, Phleger & Harrison LLP
               One Market, Spear Tower
               San Francisco, CA 94105
               Attention: Scott D. Lester, Esq.
               Facsimile No.: (415) 442-1010
               Telephone No.: (415) 442-0900
 
        (b) if to Medicus, to:
 
                    Medicus Systems Corporation
               One Rotary Center
               Suite 1111
               Evanston, Illinois 60201
               Attention: Patrick Sommers, President and CEO
               Facsimile No: (847) 570-7642
               Telephone No.: (847) 570-7503
 
           with a copy to:
 
                    Bell, Boyd & Lloyd
               Three First National Plaza
               70 West Madison Street, Suite 3300
               Chicago, Illinois 60602-4207
               Attention: William G. Brown, Esq.
               Facsimile No.: (312) 372-2098
               Telephone No.: (312) 372-1121
 
   
     8.3  Interpretation. When a reference is made in this Agreement to Exhibits
or Schedules, such reference shall be to an Exhibit or Schedule to this
Agreement unless otherwise indicated. The words "include," "includes" and
"including" when used herein shall be deemed in each case to be followed by the
words "without limitation." The phrase "made available" in this Agreement shall
mean that the information referred to has been made available if requested by
the party to whom such information is to be made available. The phrases "the
date of this Agreement", "the date hereof", and terms of similar import, unless
the context otherwise requires, shall be deemed to refer to November   , 1997.
The table of contents and headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement.
    
 
     8.4  Counterparts. This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.
 
     8.5  Entire Agreement; Nonassignability; Parties in Interest. This
Agreement and the documents and instruments and other agreements specifically
referred to herein or delivered pursuant hereto, including the Exhibits, the
Schedules, including the Medicus Disclosure Schedule and the QuadraMed
Disclosure Schedule (a) constitute the entire agreement among the parties with
respect to the subject matter hereof and supersede all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof, except for the Confidentiality Agreement, which shall
continue in full force and effect, and shall survive any termination of this
Agreement or the Closing, in accordance with its terms; (b) are not intended to
confer upon any other person any rights or remedies hereunder, except as set
forth in Sections 1.6(a)-(c) and (f), 1.7-1.9, 5.11 and 5.14; and (c) shall not
be assigned by operation of law or otherwise except as otherwise specifically
provided.
 
     8.6  Severability. In the event that any provision of this Agreement, or
the application thereof, becomes or is declared by a court of competent
jurisdiction to be illegal, void or unenforceable, the remainder of this
 
                                      A-30
<PAGE>   113
 
Agreement will continue in full force and effect and the application of such
provision to other persons or circumstances will be interpreted so as reasonably
to effect the intent of the parties hereto. The parties further agree to replace
such void or unenforceable provision of this Agreement with a valid and
enforceable provision that will achieve, to the extent possible, the economic,
business and other purposes of such void or unenforceable provision.
 
     8.7  Remedies Cumulative. Except as otherwise provided herein, any and all
remedies herein expressly conferred upon a party will be deemed cumulative with
and not exclusive of any other remedy conferred hereby, or by law or equity upon
such party, and the exercise by a party of any one remedy will not preclude the
exercise of any other remedy.
 
     8.8  Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware. Each of the parties hereto
irrevocably consents to the exclusive jurisdiction of any court located within
the State of Delaware in connection with any matter based upon or arising out of
this Agreement or the matters contemplated herein, agrees that process may be
served upon them in any manner authorized by the laws of the State of Delaware
for such persons and waives and covenants not to assert or plead any objection
which they might otherwise have to such jurisdiction and such process.
 
     8.9  Rules of Construction. The parties hereto agree that they have been
represented by counsel during the negotiation, preparation and execution of this
Agreement and, therefore, waive the application of any law, regulation, holding
or rule of construction providing that ambiguities in an agreement or other
document will be construed against the party drafting such agreement or
document.
 
     IN WITNESS WHEREOF, Medicus and QuadraMed have caused this Agreement to be
executed and delivered by their respective officers thereunto duly authorized,
all as of the date first written above.
 
                                          MEDICUS SYSTEMS CORPORATION
 
                                          By: /s/ PATRICK C. SOMMERS
                                            ------------------------------------
                                          Name: Patrick C. Sommers
                                          Title: CEO
 
                                          QUADRAMED CORPORATION
 
                                          By: /s/ JOHN V. CRACCHIOLO
                                            ------------------------------------
                                          Name: John V. Cracchiolo
                                          Title: Chief Financial Officer
 
            [SIGNATURE PAGE TO AGREEMENT AND PLAN OF REORGANIZATION]
 
                                      A-31
<PAGE>   114
 
                                AMENDMENT NO. 1
                    TO AGREEMENT AND PLAN OF REORGANIZATION
 
   
     AMENDMENT NO. 1, dated as of February 26, 1998 ("Amendment No. 1"), to that
certain Agreement and Plan of Reorganization, dated as of November 9, 1997 (the
"Agreement"), by and between QuadraMed Corporation, a Delaware corporation
("QuadraMed") and Medicus Systems Corporation, a Delaware corporation
("Medicus").
    
 
                                    RECITALS
 
     WHEREAS, the parties to the Agreement, pursuant to Section 7.4 of the
Agreement, desire to amend the Agreement.
 
     NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, the receipt and adequacy of which are hereby
acknowledged, and intending to be legally bound hereby, the parties hereto
hereby agree to amend the Agreement pursuant to Section 7.4 of the Agreement as
follows:
 
   
     SECTION 1.  Amendments to the Agreement.
    
 
     (a) Section 1.6(c) of the Agreement is amended by deleting "the Stock
Exchange and Subscription warrants dated March 19, 1997 issued by Medicus to
Richard C. Jelinek and a trust for his benefit (the "Jelinek Warrants")" and
"the Jelinek Warrants" from the first sentence of that section. A second
sentence is added as follows: "Those certain Stock Exchange and Subscription
warrants dated March 19, 1997 issued by Medicus to Richard C. Jelinek and a
trust for his benefit (the "Jelinek Warrants") shall be purchased by QuadraMed
and cancelled at the Effective Time pursuant to purchase agreements to be
negotiated between QuadraMed and Richard C. Jelinek and the trust,
respectively."
 
     (b) Section 1.6(g) of the Agreement is amended by deleting the words "and
each" in the last line and adding at the end of the last sentence "and in the
case of clause (2), such holders shall receive the remaining Merger
Consideration to which they are entitled in cash."
 
     (c) Section 1.7(e) of the Agreement is amended by replacing the word "age"
at the end of the first sentence with "agent of QuadraMed."
 
     (d) Section 1.11 of the Agreement is amended by deleting the word
"QuadraMed" which immediately precedes the words "Common Stock" in the first
sentence.
 
   
     (e) Section 2.11(c) of the Agreement is amended by adding after the phrase
"including any employee" the following: "or former employee of Medicus or any of
its subsidiaries. Neither Medicus nor any".
    
 
     (f) Section 2.12 of the Agreement is amended to change the second
subsection (a) to subsection (b) and in the last line of subsection (b), the
word "of" is changed to "on".
 
     (g) Section 2.13 of the Agreement is amended to change the last word of the
first sentence from "returns" to "Returns" and to change the last word in clause
(ii) of the second sentence from "authority" to "Authority".
 
   
     (h) Section 2.14(c) of the Agreement is amended to change the words
"Section 4062, 4063 or 4041 or ERISA" in clause (vi) to "Section 4062, 4063 or
4041 of ERISA".
    
 
   
     (i) Section 2.14(e) of the Agreement is amended by adding after the phrase
"except as" the following: "expressly provided in this Agreement, or (ii)
accelerate the time of payment or".
    
 
     (j) Section 2.30 of the Agreement is amended to insert the word "the"
between the words "including" and "Medicus Disclosure Schedule".
 
     (k) Section 3.3 of the Agreement is amended to insert the words "(in the
case of QuadraMed)" after the word "Agreement" in each of the first two
sentences and is further amended to delete all references to "and Merger Sub" in
all but the first two sentences.
 
                                        1
<PAGE>   115
 
     (l) Section 4.2 of the Agreement is amended to change the second subsection
(e) to subsection (f).
 
     (m) Section 4.2(s) of the Agreement is amended to add the words "its
covenants hereunder." at the end of the subsection.
 
     (n) Section 5.7 of the Agreement is amended to change the words "Affiliates
Agreements" in the last sentence to "Affiliate Agreement".
 
   
     (o) Section 5.11(a) of the Agreement is amended by deleting "the Jelinek
Warrants" from the first sentence.
    
 
   
     (p) Section 5.11(b) of the Agreement is amended by deleting "each of the
Jelinek Warrants and" from the first sentence and by deleting the word "each"
which immediately precedes "such warrant" in clause (i).
    
 
   
     (q) Section 5.11 of the Agreement is amended to add subparagraph (e) as
follows:
    
 
          "(e) The Jelinek Warrants shall be purchased by QuadraMed and
     cancelled at the Effective Time pursuant to purchase agreements to be
     negotiated between QuadraMed and Richard C. Jelinek and the trust,
     respectively."
 
   
     (r) Section 5.12(b) of the Agreement is hereby deleted.
    
 
     (s) Section 5.13 of the Agreement is amended by placing a period after
"QuadraMed" in the first sentence and deleting "and the shares of QuadraMed
Common Stock issuable pursuant to the Jelinek Warrants" in the first sentence.
 
     (t) Section 5.16 of the Agreement is amended to change the words "claim or
claim" in clause (iii) to "claim or claims" and is further amended to change the
word "tow" in the last sentence to "two".
 
   
     (u) Section 6.1 of the Agreement is amended to change the second subsection
(c) to subsection (d) and to change the current subsection (d) to subsection
(e).
    
 
     (v) Section 8.1 of the Agreement is amended to change the reference to
Section 5.19 to 5.17.
 
     (w) Section 8.3 of the Agreement is amended to change "November   , 1997"
to "November 9, 1997" in the fourth sentence.
 
   
     (x) Section 8.5 of the Agreement is amended by replacing the words "set
forth in Sections 1.6(a) - (c) and (f), 1.7 - 1.9, 5.11 and 5.14 in subsection
(b) with "otherwise set forth in this Agreement".
    
 
   
     SECTION 2.  Reference to and Effect on the Agreement.
    
 
     (a) Upon the effectiveness of Section 1 hereof, on and after the date
hereof each reference in the Agreement to "this Agreement," "the Agreement,",
"hereunder," "hereof," "herein" or words of like import shall mean and be a
reference to the Agreement as amended by Section 1 hereof.
 
     (b) Except as specifically amended above, the Agreement shall remain in
full force and effect and is hereby ratified and confirmed.
 
   
     SECTION 3.  Execution and Counterparts. This Amendment No. 1 may be
executed in one or more counterparts, and by the different parties hereto in
separate counterparts, each of which when executed shall be deemed to be an
original but all of which taken together shall constitute one and the same
instrument.
    
 
                                        2
<PAGE>   116
 
     IN WITNESS WHEREOF, each party hereto has executed, or caused its duly
authorized officer to execute, this Amendment No. 1 as of the date first written
above.
 
                                          MEDICUS SYSTEMS CORPORATION
 
   
                                          By: /s/ BERNIE MURPHY
    
                                            ------------------------------------
                                          Name: Bernie Murphy
                                          Title: Chief Financial Officer
 
                                          QUADRAMED CORPORATION
 
   
                                          By: /s/ JOHN V. CRACCHIOLO
    
                                            ------------------------------------
                                          Name: John Cracchiolo
                                          Title: Chief Financial Officer
 
                      SIGNATURE PAGE TO AMENDMENT NO. 1 TO
                      AGREEMENT AND PLAN OF REORGANIZATION
 
                                        3
<PAGE>   117
 
                                                                         ANNEX B
 
                  OPINION OF VOLPE BROWN WHELAN & COMPANY, LLC
 
                       VOLPE BROWN WHELAN & COMPANY, LLC
                               INVESTMENT BANKERS
                  ONE MARITIME PLAZA, SAN FRANCISCO, CA 94111
                       (415) 956-8120 FAX (415) 986-6754
 
December 30, 1997
 
The Board of Directors
Medicus Systems Corporation
One Rotary Center
Suite 1111
Evanston, IL 60201
 
Members of the Board:
 
   
     You have requested our opinion (the "Opinion") as to the fairness, from a
financial point of view, to the stockholders of Medicus Systems Corporation
("Medicus" or the "Company"), other than QuadraMed Corporation ("QuadraMed"), of
the consideration to be received by such holders pursuant to the Agreement and
Plan of Reorganization dated as of November 9, 1997 (the "Agreement") by and
among Medicus and QuadraMed.
    
 
   
     The Agreement provides that (i) a wholly owned subsidiary of QuadraMed
("Merger Sub") will be merged with and into Medicus (the "Merger") and (ii) each
outstanding share of common stock of Medicus (the "Medicus Common Stock") will
be converted into the right to receive, at the option of each shareholder,
either (x) $7.50 in cash, (y) 0.3125 shares, subject to adjustment as described
in the Agreement, (the "Exchange Ratio") of QuadraMed common stock ("QuadraMed
Common Stock") or (z) any combination of QuadraMed Common Stock and cash,
subject to certain adjustments and restrictions (the "Consideration"). It is our
understanding that the transaction will be accounted for as a purchase for
financial reporting purposes and the Consideration will be taxable to Medicus
shareholders when received.
    
 
     We understand that shortly after the execution of the Agreement, QuadraMed
acquired 56.7%, or 3,111,105 shares, of the outstanding capital stock of Medicus
through transactions with certain shareholders (the "Selling Shareholders"). We
further understand that QuadraMed paid for such shares $7.50 per share in cash
together with warrants entitling the Selling Shareholders to acquire 0.3125
shares of QuadraMed Common Stock for each share of Medicus Common Stock sold at
a price of $24.00 per share, subject to certain adjustments and restrictions.
 
     For the purposes of formulating the Opinion, we have, among other things:
 
          (i) Reviewed the Agreement and Plan of Reorganization dated as of
     November 9, 1997 by and among QuadraMed and Medicus;
 
          (ii) Discussed the terms of QuadraMed's acquisition of Resource Health
     Partners, L.P. ("RHP") with QuadraMed management;
 
          (iii) Interviewed management of Medicus and QuadraMed concerning the
     business prospects, financial outlook and operating plans of each company
     individually and combined;
 
          (iv) Reviewed certain historical Medicus and QuadraMed, and certain
     projected Medicus and QuadraMed (including RHP) financial statements and
     other relevant financial and operating data of Medicus and QuadraMed
     prepared by the respective company management teams;
 
          (v) Reviewed the historical stock trading patterns of both QuadraMed
     and Medicus and analyzed implied historical exchange ratios as well as the
     premium of the Consideration in relation to historical Medicus stock
     trading ranges;
 
                                       B-1
<PAGE>   118
 
          (vi) Reviewed the valuation of selected publicly-traded companies we
     deemed comparable and relevant to the Merger;
 
          (vii) Reviewed, to the extent publicly available, the financial terms
     of selected merger and acquisition transactions that we deemed comparable
     and relevant to the Merger;
 
          (viii) Reviewed the relevant contribution each of Medicus and
     QuadraMed is making to the combined company in terms of financial results
     and compared the implied values resulting from this analysis with the
     Consideration;
 
          (ix) Performed a discounted cash flow analysis of Medicus as a
     stand-alone entity based upon financial projections of Medicus management;
 
          (x) Performed a pro forma financial impact analysis of the combined
     entity, based upon financial projections provided by Medicus and QuadraMed;
     and
 
          (xi) Performed other such studies, analyses and inquiries and
     considered other such information as we deemed relevant.
 
     Volpe Brown Whelan & Company, LLC ("VBW&Co.") relied without independent
verification upon the accuracy and completeness of all of the financial,
accounting, legal, tax, operating and other information provided to VBW&Co. by
Medicus and QuadraMed and has relied upon the assurances of Medicus and
QuadraMed that all such information provided by them, respectively, is complete
and accurate in all material respects and that there is no additional material
information known to either of them that would make any of the information made
available to VBW&Co. either incomplete or misleading. Medicus has also retained
outside legal, accounting and tax advisors to advise on matters relating to the
Merger. Accordingly, VBW&Co. has relied on their advice and expresses no opinion
on such matters.
 
     Although we were informed by Medicus of certain discussions by the
management of Medicus with third parties concerning possible business
combinations, we were not requested to consider, and we are expressing no
opinion as to, the relative merits of the Merger as compared to any alternative
business strategies that might exist for Medicus or the effect of any other
transaction in which Medicus might engage.
 
     With respect to the projected financial data of Medicus and QuadraMed
(including RHP), all of which has been provided by the management of Medicus or
QuadraMed, as well as the combined business plan, VBW&Co. has relied upon
assurances of each company that such data has been prepared in good faith on a
reasonable basis reflecting the best currently available estimates and judgments
of Medicus and QuadraMed managements as to the future financial performance of
each company separately and as a combined company. Our Opinion is based, in
large part, on these projected financial data and estimates.
 
     VBW&Co. is relying upon the information provided to it by Medicus and
QuadraMed for the purposes of rendering the Opinion. VBW&Co. expresses no
opinion and has made no investigation with respect to the validity, accuracy or
completeness of the information provided to it and does not warrant any
projections included in such information. Actual results that Medicus or
QuadraMed might achieve in the future as stand-alone entities or as a combined
company may vary materially from those used in VBW&Co.'s analysis.
 
     VBW&Co. has assumed that the Merger will be consummated in accordance with
the terms of the Agreement and that no subsequent changes or amendments will be
made prior to closing. VBW&Co. has, furthermore, not made any independent
appraisals or valuations of any assets of Medicus or QuadraMed, nor has VBW&Co.
been furnished with any such appraisals or valuations. VBW&Co. has performed no
investigations relating to the representations and warranties made by Medicus or
QuadraMed, including representations with respect to intellectual property
rights and status of any litigation pending or threatened against either
company. While VBW&Co. believes that its review, as described herein, is an
adequate basis for the Opinion it has expressed, the Opinion is necessarily
based upon market, economic and other conditions that exist and can be evaluated
as of the date of the Opinion, and any change in such conditions would require a
re-evaluation of the Opinion.
 
                                       B-2
<PAGE>   119
 
     The Opinion addresses only the financial fairness of the Consideration to
the shareholders other than QuadraMed and does not address the relative merits
of the Merger and any alternatives to the Merger, the relative fairness of the
Consideration in comparison with the purchase price paid to the Selling
Shareholders, Medicus' decision to proceed with or the effect of the Merger, or
any other aspect of the Merger.
 
     The preparation of a fairness opinion involves various judgments as to
appropriate and relevant quantitative and qualitative methods of financial
analyses and the application of those methods to the particular circumstances
and, therefore, such an opinion is not readily susceptible to summary
description. Accordingly, we believe our analyses and the factors utilized in
such analysis must be considered as a whole and that considering any portion of
such analyses or factors, without considering all analyses and factors could
create a misleading or incomplete view of the process underlying the Opinion. In
our analyses, we made numerous assumptions with respect to industry performance,
general business and other conditions and matters, many of which are beyond
Medicus' or QuadraMed's control and are not susceptible to accurate prediction.
No opinion is expressed herein as to the future trading price or range of prices
of any securities of QuadraMed issued prior to or in conjunction with the
Merger. Furthermore, the Opinion does not constitute a recommendation as to the
Board of Directors' decision on whether to support the Merger and recommend it
to Medicus' stockholders and does not constitute a recommendation to
shareholders as to whether to vote in favor of the Merger. The Opinion and
related materials have been prepared for the use and benefit of the Board of
Directors of Medicus and may not be used for any other purpose, except that this
opinion may be included in any filing which Medicus makes with the Securities
and Exchange Commission with respect to the Merger (and included in a proxy
statement related to the Merger).
 
     As a customary part of its investment banking business, VBW&Co. engages in
the valuation of businesses and their securities in connection with mergers and
acquisitions, negotiated underwritings, secondary distributions of securities,
private placements and valuations for corporate and other purposes. In the
ordinary course of its business, VBW&Co. and its affiliates may actively trade
the equity securities of Medicus or QuadraMed for their own account and for the
accounts of customers and, accordingly, may at any time hold a long or short
position in such securities.
 
     As you are aware, VBW&Co. has been engaged by QuadraMed to provide
investment banking and financial advisory services to QuadraMed unrelated to the
Medicus transaction. To date no fees have been paid to VBW&Co. by QuadraMed. As
you are also aware, VBW&Co. has also been retained by RHP to provide financial
advice and a fairness opinion to RHP with respect to the acquisition of RHP by
QuadraMed. VBW&Co. will receive a fee for rendering its Opinion, no portion of
which is conditioned upon the Opinion being favorable.
 
     Based upon and subject to the foregoing limitations and restrictions and
after considering such other matters as we deem relevant, it is our opinion
that, as of the date hereof, the Consideration in the Merger is fair, from a
financial point of view, to the stockholders of Medicus, other than QuadraMed.
 
                                          Very truly yours,
 
                                          VOLPE BROWN WHELAN & COMPANY, LLC
 
                                          By:          /s/  STEVEN PIPER
 
                                            ------------------------------------
                                                        Steven Piper
 
                                       B-3
<PAGE>   120
 
                                                                         ANNEX C
 
                SECTION 262 OF DELAWARE GENERAL CORPORATION LAW
 
     Appraisal Rights -- (a) Any stockholder of a corporation of this State who
holds shares of stock on the date of the making of a demand pursuant to
subsection (d) of this section with respect to such shares, who continuously
holds such shares through the effective date of the merger or consolidation, who
has otherwise complied with subsection (d) of this section and who has neither
voted in favor of the merger or consolidation nor consented thereto in writing
pursuant to sec.228 of this title shall be entitled to an appraisal by the Court
of Chancery of the fair value of the stockholder's shares of stock under the
circumstances described in subsections (b) and (c) of this section. As used in
this section, the word "stockholder" means a holder of record of stock in a
stock corporation and also a member of record of a nonstock corporation; the
words "stock" and "share" mean and include what is ordinarily meant by those
words and also membership or membership interest of a member of a nonstock
corporation; and the words "depository receipt" mean a receipt or other
instrument issued by a depository representing an interest in one or more
shares, or fractions thereof, solely of stock of a corporation, which stock is
deposited with the depository.
 
     (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to sec.251 (other than a merger effected pursuant to
sec.251(g) of this title), sec.252, sec.254, sec.257, sec.258, sec.263 or
sec.264 of this title.
 
     (1) Provided, however, that no appraisal rights under this section shall be
available for the shares of any class or series of stock, which stock, or
depository receipts in respect thereof, at the record date fixed to determine
the stockholders entitled to receive notice of and to vote at the meeting of
stockholders to act upon the agreement of merger or consolidation, were either
(i) listed on a national securities exchange or designated as a national market
system security on an interdealer quotation system by the National Association
of Securities Dealers, Inc. or (ii) held of record by more than 2,000 holders;
and further provided that no appraisal rights shall be available for any shares
of stock of the constituent corporation surviving a merger if the merger did not
require for its approval the vote of the stockholders of the surviving
corporation as provided in subsection (f) of sec.251 of this title.
 
     (2) Notwithstanding paragraph (1) of this subsection, appraisal rights
under this section shall be available for the shares of any class or series of
stock of a constituent corporation if the holders thereof are required by the
terms of an agreement of merger or consolidation pursuant to sec.251, 252, 254,
257, 258, 263 and 264 of this title to accept for such stock anything except:
 
          a. Shares of stock of the corporation surviving or resulting from such
     merger or consolidation, or depository receipts in respect thereof;
 
          b. Shares of stock of any other corporation, or depository receipts in
     respect thereof, which shares of stock (or depository receipts in respect
     thereof) or depository receipts at the effective date of the merger or
     consolidation will be either listed on a national securities exchange or
     designated as a national market system security on an interdealer quotation
     system by the National Association of Securities Dealers, Inc. or held of
     record by more than 2,000 holders;
 
          c. Cash in lieu of fractional shares or fractional depository receipts
     described in the foregoing subparagraphs a. and b. of this paragraph; or
 
          d. Any combination of the shares of stock, depository receipt and cash
     in lieu of fractional shares or fractional depository receipts described in
     the foregoing subparagraphs a., b. and c of this paragraph.
 
     (3) In the event all of the stock of a subsidiary Delaware corporation
party to a merger effected under sec.253 of this title is not owned by the
parent corporation immediately prior to the merger, appraisal rights shall be
available for the shares of the subsidiary Delaware corporation.
 
     (c) Any corporation may provide in its certificate of incorporation that
appraisal rights under this section shall be available for the shares of any
class or series of its stock as a result of an amendment to its certificate
 
                                       C-1
<PAGE>   121
 
of incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets of
the corporation. If the certificate of incorporation contains such a provision,
the procedures of this section, including those set forth in subsections (d) and
(e) of this section, shall apply as nearly as is practicable.
 
     (d) Appraisal rights shall be perfected as follows:
 
          (1) If a proposed merger or consolidation for which appraisal rights
     are provided under this section is to be submitted for approval at a
     meeting of stockholders, the corporation, not less than 20 days prior to
     the meeting shall notify each of its stockholders who was such on the
     record date for such meeting with respect to shares of which appraisal
     rights are available pursuant to subsections (b) or (c) hereof that
     appraisal rights are available for any or all of the shares of the
     constituent corporations, and shall include in such notice a copy of this
     section. Each stockholder electing to demand the appraisal of his shares
     shall deliver to the corporation, before the taking of the vote on the
     merger or consolidation, a written demand for appraisal of his shares. Such
     demand will be sufficient if it reasonably informs the corporation of the
     identity of the stockholder and that the stockholder intends thereby to
     demand the appraisal of his shares. A proxy or vote against the merger or
     consolidation shall not constitute such a demand. A stockholder electing to
     take such action must do so by a separate written demand as herein
     provided. Within 10 days after the effective date of such merger or
     consolidation, the surviving or resulting corporation shall notify each
     stockholder of each constituent corporation who has complied with this
     subsection and has not voted in favor of or consent to the merger or
     consolidation of the date that the merger or consolidation has become
     effective; or
 
          (2) If the merger or consolidation was approved pursuant to sec.228 or
     sec.253 of this title, each constituent corporation, either before the
     effective date of the merger or consolidation or within ten days
     thereafter, shall notify each of the holders of any class or series of
     stock of such constituent corporation who are entitled to appraisal rights
     of the approval of the merger or consolidation and that appraisal rights
     are available for any or all shares of such class or series of stock of
     such constituent corporation, and shall include in such notice a copy of
     this section; provided that, if the notice shall be given on or after the
     effective date of the merger or consolidation, such notice shall be given
     by the surviving or resulting corporation to all such holders of any class
     or series of stock of a constituent corporation that are entitled to
     appraisal rights. Such notice may, and, if given on or after the effective
     date of the merger or consolidation, shall, also notify such stockholders
     of the effective date of the merger or consolidation. Any stockholder
     entitled to appraisal rights may, within twenty days after the date of
     mailing of such notice, demand in writing from the surviving or resulting
     corporation the appraisal of such holder's shares. Such demand will be
     sufficient if it reasonably informs the corporation of the identity of the
     stockholder and that the stockholder intends thereby to demand the
     appraisal of such holder's shares. If such notice did not notify
     stockholders of the effective date of the merger or consolidation, either
     (i) each such constituent corporation shall send a second notice before the
     effective date of the merger or consolidation notifying each of the holders
     of any class or series of stock of such constituent corporation that are
     entitled to appraisal rights of the effective date of the merger or
     consolidation or (ii) the surviving or resulting corporation shall send
     such second notice to all such holders on or within 10 days after such
     effective date; provided, however, that if such second notice is sent more
     than 20 days following the sending of the first notice, such second notice
     need only be sent to each stockholder who is entitled to appraisal rights
     and who has demanded appraisal of such holder's shares in accordance with
     this subsection. An affidavit of the secretary or assistant secretary or of
     the transfer agent of the corporation that is required to give either
     notice that such notice has been given shall, in the absence of fraud, be
     prima facie evidence of the facts stated therein. For purposes of
     determining the stockholders entitled to receive either notice, each
     constituent corporation may fix, in advance, a record date that shall be
     not more than 10 days prior to the date the notice is given; provided that,
     if the notice is given on or after the effective date of the merger or
     consolidation, the record date shall be such effective date. If no record
     date is fixed and the notice is given prior to the effective date, the
     record date shall be the close of business on the day next preceding the
     day on which the notice is given.
 
                                       C-2
<PAGE>   122
 
     (e) Within 120 days after the effective date of the merger or
consolidation, the surviving or resulting corporation or any stockholder who has
complied with subsections (a) and (d) hereof and who is otherwise entitled to
appraisal rights, may file a petition in the Court of Chancery demanding a
determination of the value of the stock of all such stockholders.
Notwithstanding the foregoing, at any time within 60 days after the effective
date of the merger or consolidation, any stockholder shall have the right to
withdraw his demand for appraisal and to accept the terms offered upon the
merger or consolidation. Within 120 days after the effective date of the merger
or consolidation, any stockholder who has complied with the requirements of
subsections (a) and (d) hereof, upon written request, shall be entitled to
receive from the corporation surviving the merger or resulting from the
consolidation a statement setting forth the aggregate number of shares not voted
in favor of the merger or consolidation and with respect to which demands for
appraisal have been received and the aggregate number of holders of such shares.
Such written statement shall be mailed to the stockholder within 10 days after
his written request for such a statement is received by the surviving or
resulting corporation or within 10 days after expiration of the period for
delivery of demands for appraisal under subsection (d) hereof, whichever is
later.
 
     (f) Upon the filing of any such petition by a stockholder, service of a
copy thereof shall be made upon the surviving or resulting corporation, which
shall within 20 days after such service file in the office of the Register in
Chancery in which the petition was filed a duly verified list containing the
names and addresses of all stockholders who have demanded payment for their
shares and with whom agreements as to the value of their shares have not been
reached by the surviving or resulting corporation. If the petition shall be
filed by the surviving or resulting corporation, the petition shall be
accompanied by such a duly verified list. The Register in Chancery, if so
ordered by the Court, shall give notice of the time and place fixed for the
hearing of such petition by registered or certified mail to the surviving or
resulting corporation and to the stockholders shown on the list at the addresses
therein stated. Such notice shall also be given by 1 or more publications at
least 1 week before the day of the hearing, in a newspaper of general
circulation published in the City of Wilmington, Delaware or such publication as
the Court deems advisable. The forms of the notices by mail and by publication
shall be approved by the Court, and the costs thereof shall be borne by the
surviving or resulting corporation.
 
     (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled to
appraisal rights. The Court may require the stockholders who have demanded an
appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as to
such stockholder.
 
     (h) After determining the stockholders entitled to an appraisal, the Court
shall appraise the shares, determining their fair value exclusive of any element
of value arising from the accomplishment or expectation of the merger or
consolidation, together with a fair rate of interest, if any, to be paid upon
the amount determined to be the fair value. In determining such fair value, the
Court shall take into account all relevant factors. In determining the fair rate
of interest, the Court may consider all relevant factors, including the rate of
interest which the surviving or resulting corporation would have had to pay to
borrow money during the pendency of the proceeding. Upon application by the
surviving or resulting corporation or by any stockholder entitled to participate
in the appraisal proceeding, the Court may, in its discretion, permit discovery
or other pretrial proceedings and may proceed to trial upon the appraisal prior
to the final determination of the stockholder entitled to an appraisal. Any
stockholder whose name appears on the list filed by the surviving or resulting
corporation pursuant to subsection (f) of this section and who has submitted his
certificates of stock to the Register in Chancery, if such is required, may
participate fully in all proceedings until it is finally determined that he is
not entitled to appraisal rights under this section.
 
     (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to the
stockholders entitled thereto. Interest may be simple or compound, as the Court
may direct. Payment shall be so made to each such stockholder, in the case of
holders of uncertificated stock forthwith, and the case of holders of shares
represented by certificates upon the surrender to the corporation of the
certificates representing such stock. The Court's decree may be enforced as
                                       C-3
<PAGE>   123
 
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.
 
     (j) The costs of the proceeding may be determined by the Court and taxed
upon the parties as the Court deems equitable in the circumstances. Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.
 
     (k) From and after the effective date of the merger or consolidation, no
stockholder who has demanded his appraisal rights as provided in subsection (d)
of this section shall be entitled to vote such stock for any purpose or to
receive payment of dividends or other distributions on the stock (except
dividends or other distributions payable to stockholder of record at a date
which is prior to the effective date of the merger or consolidation); provided,
however, that if no petition for an appraisal shall be filed within the time
provided in subsection (e) of this section, or if such stockholder shall deliver
to the surviving or resulting corporation a written withdrawal of his demand for
an appraisal and an acceptance of the merger or consolidation, either within 60
days after the effective date of the merger or consolidation as provided in
subsection (e) of this section or thereafter with the written approval of the
corporation, then the right of such stockholder to an appraisal shall cease.
Notwithstanding the foregoing, no appraisal proceeding in the Court of Chancery
shall be dismissed as to any stockholder without the approval of the Court, and
such approval may be conditioned upon such terms as the Court deems just.
 
     (1) The shares of the surviving or resulting corporation to which the
shares of such objecting stockholders would have been converted had they
assented to the merger or consolidation shall have the status of authorized and
unissued shares of the surviving or resulting corporation.
 
                                       C-4
<PAGE>   124
 
                                                                         ANNEX D
================================================================================
 
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-K
                            ------------------------
 
     [X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
        SECURITIES EXCHANGE ACT OF 1934
 
                                       OR
 
     [ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
           EXCHANGE ACT OF 1934
 
                     FOR THE FISCAL YEAR ENDED MAY 31, 1997
 
                          COMMISSION FILE NO. 0-27614
 
                          MEDICUS SYSTEMS CORPORATION
                             A DELAWARE CORPORATION
 
                        IRS EMPLOYER IDENTIFICATION NO.
                                   36-4056769
 
                         ONE ROTARY CENTER, SUITE 1111
                            EVANSTON, ILLINOIS 60201
                                 (847) 570-7500
 
          Securities Registered Pursuant to Section 12(b) of the Act:
                                      None
 
          Securities Registered Pursuant to Section 12(g) of the Act:
                     Common Stock, Par Value $.01 Per Share
                                (TITLE OF CLASS)
 
     Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.  Yes [X]  No [ ]
 
     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K.  [ ]
 
     As of August 21, 1997, there were 5,483,207 shares of common stock
outstanding, and the aggregate market value of the common stock (based upon the
August 21, 1997 closing sale price on the Nasdaq National Market) held by
non-affiliates was approximately $23,290,034.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
     Portions of the Registrant's Proxy Statement for the 1997 Annual Meeting of
Stockholders to be held on November 18, 1997 (Part III).
================================================================================
 
                                       C-5
<PAGE>   125
 
                                     PART I
 
ITEM 1. BUSINESS
 
GENERAL
 
     Medicus Systems Corporation ("Medicus" or the "Company") develops, markets,
and supports a family of specialized integrated software products utilized by
healthcare financial administrators, physicians and nursing executives, health
information and other administrative departments to capture, structure and
analyze clinical, operational and financial information. Medicus' specialized
software applications and services allow these professionals to measure, monitor
and manage organizational performance and optimize outcomes. Many of these
products incorporate features that enable them to facilitate the exchange of
data with information systems used by other Medicus clients. Medicus also
provides product-related maintenance and support services. During the year, the
Company discontinued the line of business which managed the information systems
of healthcare delivery organizations.
 
     Medicus' products are currently used by more than 1,200 clients. Clients
include hospitals, academic medical centers, managed care organizations,
community care networks, integrated health systems, primary care and
multi-specialty physician groups, government agencies, and other organizations.
 
  BASIS OF PRESENTATION
 
     Prior to March 1, 1996, the Company's predecessor (the "Predecessor
Corporation") operated a software and related services business and a small
managed care business. In February 1995, the Predecessor Corporation adopted a
formal plan to discontinue its managed care business, transfer the assets and
liabilities of this business to a newly-formed subsidiary, and distribute the
shares of this newly-formed subsidiary to its stockholders. In November 1995,
following meetings with the Internal Revenue Service and in order to insure
qualification of the transaction as a tax-free spin-off, the form of the
transaction was changed. Instead of transferring the assets and liabilities of
its managed care business to a newly-formed subsidiary, the Predecessor
Corporation formed a new Delaware subsidiary, Medicus Systems Software, Inc., to
which it transferred all of its assets and liabilities excluding only the
defined assets and liabilities of its managed care business. In turn, the stock
of this newly-formed subsidiary was distributed on a share-for-share basis to
the stockholders of the Predecessor Corporation (the "Distribution"), the name
of the subsidiary was changed to Medicus Systems Corporation, and the name of
the Predecessor Corporation was changed to Managed Care Solutions, Inc. ("MCS").
Simultaneously, the outstanding stock of the Predecessor Corporation was split
in reverse one-for-three so that following the Distribution, the Predecessor
Corporation's stockholders owned one share of the Company (the successor, in
substance, to the Predecessor Corporation which owned all of the assets and was
liable for all obligations of the Predecessor Corporation except those
specifically related to the Predecessor Corporation's managed care business) and
one-third of a share of MCS for every share of the Predecessor Corporation
previously owned.
 
     Although the Company is, in substance, the Predecessor Corporation's
successor, the financial statements of the Company have been prepared as if the
Company had operated as a free-standing entity for all the periods presented
(excluding certain incremental corporate expenses that would have been incurred
had it operated on a stand-alone basis). Accordingly, the financial statements
include those assets, liabilities, revenues and expenses directly attributable
to the Company's operations and exclude those specifically related to the
managed care business. The Company has adopted this presentation because the
Company believes that this presentation most fairly represents its financial
condition, results of operations and changes in stockholders' equity and cash
flows. The financial statements included herein for periods prior to the
Distribution do not necessarily reflect what the financial position and results
of operation of the Company would have been had it operated as a stand-alone
entity during the periods covered, and may not be indicative of future
operations or financial position.
 
                                       D-2
<PAGE>   126
 
  SOFTWARE PRODUCTS AND SERVICES
 
     Provider organizations are continuously challenged by purchasers to
demonstrate improvement toward optimal financial and clinical outcomes as they
compete for managed care contracts. Medicus' specialized products are designed
to capture, structure and analyze data in such a way as to assist providers in
optimizing the outcomes that are most important to buyers. Medicus focuses on
providing products in specialized market niches that are critical to the
information and decision support needs of healthcare providers. The Company
employs standard interface systems to accomplish the necessary integration with
existing transaction processing systems.
 
  CLINICAL DATA SYSTEMS (CDS)
 
     CDS is an integrated encoding system and data repository that enables the
healthcare provider to classify, capture, validate, and analyze clinical data.
The system is a tool that implements a uniform clinical database to measure and
monitor patient, clinical and financial outcomes. This expert encoding system
aids in optimizing prospective payment reimbursement for both inpatient and
ambulatory care services. It captures and validates clinical indicators,
severity and risk factors as well as patient demographics data, diagnoses and
procedures. Clinical data forms the basis upon which (i) the healthcare provider
identifies cases for clinical appropriateness studies, (ii) the Joint Commission
on Accreditation of Healthcare Organizations (JCAHO), The National Committee on
Quality Assurance utilizing its Health Plan and Employer Data and Information
Set (HEDIS), and state agencies measure performance, and (iii) the health care
provider estimates service volumes and costs in competing for managed care
contracts. By validating data at the point of capture and linking it to a
Diagnosis Related Group (DRG), the clinical data system creates an accurate and
complete data repository that provides the information required to manage costs
and improve clinical effectiveness and service efficiency.
 
     As of May 31, 1997, the Company had licensed CDS software for use by 600
hospitals and other users. These other users include the Health Care Financing
Administration (HCFA), several professional peer review organizations, the
American Hospital Association (AHA), and numerous consulting and auditing firms.
The CDS product line currently includes two integrated modules:
 
     The WinCoder+ module is a Windows-based encoding tool released in 1995. The
WinCoder+ module supports integrated data encoding, editing and
diagnosis-related grouping for all patient types, including inpatient
admissions, emergency room admissions, referrals, and ambulatory admissions and
procedures. Utilizing "expert-system" logic, WinCoder+ delivers advice and
classification guidance to identify errors of omission in clinical documentation
in an effort to optimize Medicare and capitated reimbursement. The system also
captures reliable and consistent clinical data for both the financial and
clinical users. The WinCoder+ product includes a Clinical and Financial
Optimizer which uses "expert-system" logic to assist the user in identifying
errors of omission in clinical documentation, and proposes related codes or
other alternatives which may be applicable and result in more appropriate
reimbursement.
 
     The WinCOLLECT module organizes and structures a uniform clinical data set
to describe a patient population, including its clinical and financial
characteristics, and to evaluate the quality and appropriateness of care.
WinCOLLECT is a data capture system that validates entries for internal
consistency at the point of collection. Because each organization has unique
requirements and is responding to volatile external forces, this module supports
user customization with user-defined tables and calculated fields. WinCOLLECT is
a core technology for the healthcare organization to support medical records,
quality assurance, physician credentialing, utilization review, discharge
planning, infection control and risk management functions. This module captures
the clinical data necessary to meet the external reporting requirements of
JCAHO, HCFA, professional review organizations, state data agencies and other
organizations.
 
     The CDS products are licensed under non-exclusive perpetual licenses.
Leasing options are also offered. Total client fees for CDS products range from
$15,000 to $250,000 and are comprised of license fees charged per module and per
user, implementation, hardware and technical fees. At the time a license is
granted, Medicus generally enters into a one-year maintenance and support
agreement for an annual fee that is based
 
                                       D-3
<PAGE>   127
 
on a percentage of the then current license fee and which is renewable at then
current rates for successive one-year terms.
 
  DECISION SUPPORT SYSTEMS (DSS)
 
     This division offers two lines of products, Enterprise Analyst and Resource
Case Management. As of May 31, 1997, Medicus had licensed its DSS software for
use by 150 hospital customers.
 
     The Company recently introduced to the market the Enterprise Analyst -- the
next generation of Decision Support Systems to assist integrated healthcare
delivery systems in responding to the rapidly changing healthcare environment
via a powerful client/server architecture and one of the most comprehensive
functionalities available today.
 
     The Enterprise Analyst is a fully integrated, enterprise wide decision
support system application designed to allow our customers to maximize all
components of value -- quality, outcomes and cost containment. With the
Enterprise Analyst, healthcare organizations capture, manage, and analyze
clinical and operational costs, case mix data, payer contracts, physician
profiles, resource utilization, and patient care outcomes data. The Enterprise
Analyst is comprised of three integrated modules:
 
     Enterprise Costing allows a healthcare enterprise to measure, monitor and
compare costs across the continuum of care for all care settings. This product
allows healthcare managers to easily obtain the information needed to make
optimal decisions regarding resource allocation and cost containment. The system
supports flexible cost determination based on a range of methodologies including
micro-costing, engineered standards, relative value units, activity based
costing, and ratio of cost to charges.
 
     Enterprise Case Mix and Contract Management (CM2) is a powerful, new
combination case mix and contract management system. CM2 features a fully
integrated clinical and financial database. The system is designed to analyze
clinical outcomes against key variables such as revenues, costs, severity,
physician to discover the techniques that result in desirable outcomes and lower
costs. CM2 is designed to calculate reimbursement based on payer contract terms,
track contractual allowances accurately to provide precise profitability
measures and variance analyses of payer contracts, generate payer and patient
letters, and provide a contract modeling capability that can handle any
reimbursement model for more accurate negotiations.
 
     Enterprise Performance Measurement and Modeling (PMM) effectively
integrates strategic planning with the operational planning process across the
enterprise. PMM works in a distributed environment and provides a dynamic
statistics file for comprehensive flexible budgeting and financial modeling. The
system supports enterprise wide detailed wage and salary planning, financial
forecasting, cost allocation, contractual allowance determination, and
procedural rate setting.
 
     Resource Case Management, a line of DSS products, provides case managers
and other personnel the ability to evaluate and manage patient care resources on
a daily basis. The Resource Case Management system is comprised of three
integrated modules each of which addresses a distinct and logical part of the
case management and analysis process:
 
     The Pathway Generator module analyzes historical case data and generates
resource pathways.
 
     The Pathway Monitor module tracks actual resource consumption and related
variation, reports performance, and assigns pathways to cases.
 
     The Reimbursement module calculates expected reimbursement.
 
     The DSS products are licensed under non-exclusive perpetual licenses. Total
client fees for DSS products range from $25,000 to $300,000, depending on the
size of the healthcare organization, and are comprised of license fees charged
for the specific modules that are licensed, along with implementation and
technical fees. At the time a license is granted, the Company generally enters
into a one-year maintenance and support agreement for an annual fee that is
typically based on a percentage of the then current license fee and which is
renewable at then current rates for successive one-year terms.
 
                                       D-4
<PAGE>   128
 
  PATIENT FOCUSED SYSTEMS (PFS)
 
     This division's main product is InterAct 2000, which is a modular system of
software tools and methodologies designed to manage patient care resource
utilization through workload measurement, staffing against budget, cost and
productivity reporting, and employee scheduling. As of May 31, 1997, PFS
software products were licensed to 450 healthcare organizations. InterAct 2000
includes two integrated modules:
 
     The Workload/Productivity module incorporates a proprietary, research-based
workload measurement methodology applicable to all medical/surgical, mental
health, ambulatory, perinatal, and dialysis populations. This module uses an
organization's own financial and quality of care objectives to generate
assessments of workload and staffing needs against the department's resource
utilization budget. Workload/Productivity tracks direct care provider costs so
managers can understand and control variances in revenue, expenses and
productivity. It also provides data for comparing and benchmarking resource
utilization relative to similar institutions or departments.
Workload/Productivity enables the user to fulfill JCAHO patient care resource
management requirements.
 
     The Personnel/Scheduler module creates balanced staff schedules based on a
specific scheduling algorithm and a set of user defined rules.
Personnel/Scheduler also maintains ongoing personnel records with available
interfaces to payroll and time and attendance systems.
 
     The PFS products are licensed under non-exclusive perpetual licenses. Total
client fees for PFS products range from $20,000 to $100,000, depending on the
size of the healthcare organization, and are comprised of license fees charged
for the specific modules that are licensed along with implementation and
technical fees. At the time a license is granted, Medicus generally enters into
a one-year maintenance and support agreement for an annual fee that is based on
a percentage of the then current license fee and which is renewable at then
current rates for successive one-year terms.
 
  DISCONTINUED OPERATION
 
     Medicus formerly offered information management services to operate all or
part of the information systems division of selected healthcare provider
organizations. These services were generally performed on the client's premises
by Medicus personnel that functioned as though they were the client's employees.
 
     While the information systems management market presents several attractive
opportunities, it is dominated by many companies with significantly greater
financial and technical resources. As a result, price competition is strong and
sales cycles are traditionally much longer in this sector than in the Company's
core software and service product areas. Because of this, and the fact that
information systems management is not a strong fit with the Company's main focus
on healthcare decision support system opportunities, the Company decided to
discontinue this line of business. The Company will continue providing services
under its existing contract until May 31, 1998, the expiration date of the
contract.
 
  MAINTENANCE AND SUPPORT SERVICES
 
     Medicus provides training and support services during client implementation
and thereafter, as required. Maintenance and support services include software
updates, enhancements and services which are purchased by substantially all of
the Company's clients under renewable annual contracts. The Company maintains
logging, notification, and follow-up procedures to track client problems
encountered in implementing and operating its products. It also conducts client
conferences to exchange ideas regarding product usage and product extensions.
Management believes that these conferences are valuable in gathering ideas for
future products as well as enhancements to the Company's current product line.
 
  RECURRING REVENUE
 
     The Company's recurring revenue (defined as revenue generated pursuant to a
multi-year contract or pursuant to an ongoing contract, such as the Company's
standard form of annual maintenance and technical support agreements, which
contemplate continued renewals) was $10.1 million, $9.4 million and $9.0 million
for the three fiscal years ended May 31, 1997, 1996 and 1995, respectively.
                                       D-5
<PAGE>   129
 
  BACKLOG
 
     As of May 31, 1997 and 1996, the Company's backlog (which consists of
signed contracts or purchase orders for products and services which are expected
to be realized as revenue over the next twelve months plus remaining revenue on
annual maintenance and support contracts) was approximately $9.2 million and
$8.1 million, respectively. Included in backlog is $4.2 million and $4.9 million
of deferred maintenance and support for the fiscal years ended May 31, 1997 and
1996, respectively.
 
  MARKETS
 
     The primary market for the Company's products and services includes
hospitals, integrated delivery systems and academic medical centers. Table I
below summarizes the Company's primary and secondary markets for its main
product lines and the number of clients that have been licensed to use each of
the Company's three main software products and services.
 
                                    TABLE I
 
                          THE COMPANY'S MAJOR MARKETS
 
<TABLE>
<CAPTION>
  PRODUCTS AND SERVICES             PRIMARY MARKETS                   SECONDARY MARKETS
  ---------------------             ---------------                   -----------------
<S>                        <C>                                <C>
Clinical Data Systems      All hospitals -- more than 5,000   Physician group practices,
                           potential customers, of which 600  ambulatory care facilities,
                           are clients                        governmental review agencies and
                                                              consulting firms
Decision Support Systems   All hospitals -- more than 5,000   Managed care organizations and
                           potential customers, of which 150  physician group practices
                           are clients
Patient Focused Systems    Hospitals with more than 50        Hospitals with fewer than 50
                           beds -- more than 3,850 potential  beds, outpatient ambulatory care
                           customers, of which 450 are        clinics, nursing homes and mental
                           clients                            health facilities
</TABLE>
 
     As healthcare delivery systems and their respective information systems
have become more integrated, the Company has also placed an increasing emphasis
on the integration of its products by implementing a strategy focused on
upgrading its client base to new versions of its software and cross-selling
additional products to its more than 1,200 existing customers. Because many of
these clients use only one or two of the Company's products, priced between
$15,000 and $300,000, the Company believes this strategy presents an excellent
growth opportunity.
 
  MARKET ENVIRONMENT
 
     The shift of patient care delivery to less costly settings, such as
outpatient clinics and physician offices, has accelerated the consolidation
trend of healthcare delivery organizations. Employers and government purchasers
of healthcare services have dramatically shifted providers' financial incentives
by capping expenditures through various contract pricing mechanisms.
Additionally, these consumers are devising new, objective indicators for
measuring clinical performance. Healthcare delivery organizations have responded
by radically restructuring care delivery processes. To support these delivery
process changes, providers need access to better data and more information
analysis tools.
 
     Successful healthcare organizations require new cost, profitability and
performance measurement systems to understand their patient populations and the
cost and outcomes of the care they provide. Market forces are significantly
altering the relationships among physicians, hospitals, employers and insurers
(private and government). New paradigms for care delivery, such as case
management, critical or clinical pathways and outcomes monitoring, require a
link between service costs and clinical outcomes. The demand for products such
as the Company's financial and clinical decision support products is growing
rapidly within the context of this increasingly competitive and price-sensitive
market.
 
                                       D-6
<PAGE>   130
 
  COMPETITION
 
     The healthcare decision support software and services market is highly
competitive. The Company competes with several firms in each of its market
niches, although no one firm competes directly in all niches in which the
Company offers products. Competing firms vary in size and in geographic
coverage. A number of them have greater financial and management resources than
the Company. The Company believes that the principal factors affecting
competition are product functionality, analytical methodologies, flexibility and
ease of use, product enhancements, reliability and quality of implementation and
technical support, documentation, size of installed client base, competitive
pricing, and corporate reputation. The Company believes that it competes
favorably in these areas.
 
  MARKETING AND SALES
 
     Medicus sells its products through its own direct sales organization. The
Company's sales force has historically been organized along product lines but is
being reorganized to sell the full range of the Company's products. Individual
product sales are made by sales personnel and managers. Large sales
opportunities are pursued by a team including a corporate officer and sales and
technical personnel. The Company's products are also marketed under agreements
with accounting firms, consultants and hospital alliances.
 
     The Company establishes market presence by publishing articles, presenting
talks at professional meetings, assuming leadership positions in professional
organizations, participating in trade shows and advertising in trade magazines.
Prospective clients are identified through these and other methods including
direct mail, telemarketing, product seminars, and requests for proposals from
healthcare organizations.
 
  TECHNOLOGY
 
     The Company's software products, which operate on microcomputers in both a
standalone and network environment utilizing Windows NT, MS-DOS and UNIX
operating systems, are developed with the objective of providing efficient
operation, portability among mainstream hardware platforms and networks,
flexibility in supporting client needs, integrated modularity, and cost
effective support and enhancements. For this reason, VB, C, C++ and SmallTalk
programming languages are utilized for software development. Relational database
management systems for software products are SQL-compatible, with Oracle being
the Company's database system of choice. The support of industry standard
technologies as well as Company-developed proprietary development tools allow
effective and efficient product development and integration among current and
future products. The Company's experience with system interfaces and the
methodologies used for interfacing systems allows effective and rapid
connectivity of Company modules with other client systems.
 
  PRODUCT DEVELOPMENT
 
     The software industry is characterized by rapid technological change and
the need for a continuing high level of expenditures for the development and
improvement of software products and services. Medicus' approach to designing
and developing successful products is market driven and based on working in
close collaboration with its clients. In developing its products, the Company
utilizes common software design and development tools and techniques.
 
     In order to maintain and improve the market acceptance of its products and
services, the Company believes it must maintain its commitment to product
development and enhancement. For the three fiscal years ended May 31, 1997, 1996
and 1995, the Company spent $4.6 million, $4.1 million and $4.1 million,
respectively, on research and development, representing 56%, 39% and 30% of
software products and services revenue. These expenditures include expensed,
capitalized and client-funded research and development spending.
 
     As of May 31, 1997, the Company employed 40 professional computer
programmers and technical personnel. Most of the Company's technical personnel
are involved, at different times and in varying degrees, in product development
and enhancement.
 
                                       D-7
<PAGE>   131
 
  PRODUCT PROTECTION
 
     The Company owns various trademarks and servicemarks, including the
federally registered servicemark "Medicus." It does not own any patents or
registered copyrights. The Company believes that patent and copyright
protection, even if available, are less important in its industry than
innovative software engineering skills, technological and engineering experience
and marketing capabilities. The Company relies largely upon its license
agreements with clients and its own security systems, confidentiality procedures
and employee nondisclosure agreements to maintain the trade secrecy of its
products. While the enforceability of such agreements cannot be assured, the
Company believes that they provide a deterrent to unauthorized use of the
Company's proprietary information.
 
  EMPLOYEES
 
     As of May 31, 1997, the Company employed 161 persons, of whom 65 were based
at the Company's Evanston, IL corporate offices, 45 were based at the Company's
Alameda, CA office, 16 were based at the Company's Chesterfield, MO office, and
35 were based at various other sales and service centers.
 
ITEM 2. PROPERTIES
 
     The Company's principal office is located in leased space in Evanston
containing approximately 23,200 square feet of space. The lease expires on June
30, 2006. The annual rent for fiscal 1998 for this space is $468,000.
 
     The Company also leases space for offices in Alameda, CA and Chesterfield,
MO. The leases for these two facilities expire on October 31, 1999 and April 30,
1998, respectively, and have an aggregate annual rent of $340,000 for fiscal
1998.
 
ITEM 3. LEGAL PROCEEDINGS
 
     On July 11, 1997, St. Joseph Hospital filed a lawsuit, St. Joseph Hospital
v. Medicus Systems Corporation, File No. 97-36574, in the District Court of
Harris County, Texas. The Company accepted service of the complaint on August
12, 1997. The complaint alleges primarily breach of a contract to provide case
management software, and seeks unspecified damages, including attorney's fees.
The Company vigorously denies any liability, and intends to file its answer
denying the plaintiff's claims prior to September 8, 1997, the date such answer
is due. The chief executive officers of the Company and the plaintiff have
recently met to discuss the matter.
 
                                       D-8
<PAGE>   132
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
     The following matters were submitted to a vote of security holders during
the Medicus Systems Corporation Annual Meeting of Stockholders held March 19,
1997:
 
<TABLE>
<CAPTION>
                                                                   VOTES CAST    AUTHORITY
                        DESCRIPTION OF MATTER                         FOR        WITHHELD
                        ---------------------                      ----------    ---------
<S>  <C>                                                           <C>           <C>
1.   Election of Directors
     William G. Brown............................................  6,134,711      160,232
     Jon E.M. Jacoby.............................................  6,134,897      160,046
     Richard C. Jelinek..........................................  6,134,897      160,046
     John P. Kunz................................................  6,134,897      160,046
     Risa Lavizzo-Mourey.........................................  6,134,897      160,046
     Walter J. McNerney..........................................  6,134,797      160,146
     Gail L. Warden..............................................  6,134,897      160,046
</TABLE>
 
<TABLE>
<CAPTION>
                                                  VOTES CAST   VOTES CAST               BROKER
                                                     FOR        AGAINST     WITHHELD   NON VOTES
                                                  ----------   ----------   --------   ---------
<S>  <C>                                          <C>          <C>          <C>        <C>
2.   Proposal to approve the Company's 1996       3,972,182     309,015      87,477    1,926,269
     C.E.O. Replacement Stock Option Plan.......
3.   Proposal to approve the Company's 1996       4,046,681     251,180      89,168    1,907,914
     C.E.O. Special Stock Option Plan...........
4.   Proposal to approve the amendments to and    5,878,995     311,162      16,096       88,690
     restatement of the Company's 1989, 1991,
     1993, 1993 Performance and 1994 Stock
     Option Plans...............................
5.   Proposal to approve the Company's 1997       3,714,827     754,942      12,513    1,812,661
     Employee Stock Option and Restricted Stock
     Plan.......................................
6.   Proposal to approve agreements pursuant to   4,304,924      43,168      20,583    1,926,268
     which the Company would repurchase Common
     Stock and Voting Preferred Stock from
     Richard C. Jelinek.........................
</TABLE>
 
                                    PART II
 
ITEM 5. MARKET FOR THE COMPANY'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS
 
     The Company's common stock is traded on the Nasdaq National Market under
the symbol "MECS". Trading commenced March 1, 1996 as a result of the
Distribution.
 
     The following table sets forth, for the periods indicated, the high and low
reported sale prices for the common stock as reported on the Nasdaq National
Market since the Distribution on March 1, 1996.
 
<TABLE>
<CAPTION>
                                                              HIGH      LOW
                                                              -----    -----
<S>                                                           <C>      <C>
FISCAL YEAR 1996
  Fourth Quarter............................................  $9.00    $5.25
FISCAL YEAR 1997
  First Quarter.............................................   6.50     4.75
  Second Quarter............................................   6.31     4.50
  Third Quarter.............................................   7.50     4.38
  Fourth Quarter............................................   6.50     5.25
</TABLE>
 
     There were 185 holders of record and approximately 2,160 beneficial holders
of the Company's common stock as of August 21, 1997.
 
     The Predecessor Corporation (prior to March 1, 1996) and the Company
(beginning March 1, 1996) declared quarterly dividends of $0.03 per share in
each of the quarters in fiscal years 1995 and 1996. The
 
                                       D-9
<PAGE>   133
 
Board of Directors of the Company has determined not to pay dividends on the
common stock for the foreseeable future.
 
     On December 5, 1996, the Company reached an agreement in principle (the
"Agreement") with its founder, Richard C. Jelinek, to purchase from Mr. Jelinek
and a trust of which Mr. Jelinek is a beneficiary (the "Trust") one million
shares of Common Stock and 500 shares of Voting Preferred Stock. Also, Mr.
Jelinek agreed to resign as Chairman and agreed, among other things, not to
attempt to seek voting control of the Company for a period of five years. (Mr.
Jelinek continues to serve as a Director.) In exchange, the Company agreed to
pay Mr. Jelinek and the Trust $4.5 million in cash and $2.0 million in 8%
two-year promissory notes, and to issue to Mr. Jelinek and the Trust 400,000
five-year warrants to purchase Common Stock at $8.00 per share. The Company's
Board of Directors approved the Agreement on January 2, 1997, and the Company's
stockholders approved the Agreement at the Annual Meeting of Stockholders on
March 19, 1997. Neither the warrants nor the shares of Common Stock issuable
upon exercise of the warrants were registered under the Securities Act of 1933,
pursuant to the exemption contained in Section 4(2) of that Act.
 
ITEM 6. SELECTED FINANCIAL DATA
 
     The selected financial data presented below has been derived from the
financial statements of the Company and the Report on Form 10 filed on January
25, 1996. The financial statements for each of the years in the five-year period
ended May 31, 1997 have been audited by Price Warehouse LLP, independent
accountants. Revenues and operating income (loss) have been restated to exclude
results from the Company's discontinued operation. Also, the assets and
liabilities related to this separate line of business are presented as net
assets of discontinued operations on the 1997 and 1996 Balance Sheet. This
selected financial data should be read in conjunction with "Management's
Discussion and Analysis of Results of Operations and Financial Condition" and
the Company's Financial Statements and Notes.
 
<TABLE>
<CAPTION>
                                     1997          1996          1995          1994          1993
                                  -----------   -----------   -----------   -----------   -----------
<S>                               <C>           <C>           <C>           <C>           <C>
Statement of Operations:
  Revenues......................  $18,269,700   $19,794,179   $22,507,267   $21,336,870   $18,140,323
  Operating income (loss).......   (7,355,865)   (7,444,704)    3,540,262     4,379,146     3,225,905
  Net income (loss).............   (4,220,018)   (3,725,991)    3,024,493     3,224,711     2,116,869
Loss per common share*..........  $     (0.70)           --            --            --            --
Pro forma earnings (loss) per
  common share*.................           --   $     (0.57)  $      0.45   $      0.51   $      0.39
Balance Sheet:
  Working capital...............  $ 2,090,534   $12,627,354   $17,149,499   $21,983,507   $ 9,411,327
  Total assets..................   22,848,672    27,688,565    30,881,842    35,509,776    17,804,670
  Stockholders' equity..........    9,501,609    18,201,237    22,304,371    25,574,678    11,460,792
</TABLE>
 
- ---------------
 
* Loss per common share and pro forma earnings (loss) per common share are based
  upon the actual capital structure of the Company since March 1, 1996, and the
  capital structure of the Predecessor Corporation prior to March 1, 1996.
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND
        FINANCIAL CONDITION
 
     This report contains statements that may be considered forward-looking,
such as the discussion of the Company's strategic goals, new products and cash
flows. These statements speak of the Company's plans, goals or expectations,
refer to estimates, or use similar terms. Actual results could differ materially
from the results indicated by these statements because the realization of those
results is subject to many uncertainties.
 
     Some of these uncertainties that may affect future results are discussed in
more detail below under "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and under "Item 1 -- Business." All
forward-looking statements included in this document are based upon information
presently available, and the Company assumes no obligation to update any
forward-looking statement.
 
                                      D-10
<PAGE>   134
 
RESULTS OF OPERATIONS
 
     The following table sets forth for the periods indicated (i) the percent of
revenue represented by certain line items in the Company's Statements of
Operations and (ii) the percentage change in each line item from the prior
period.
 
<TABLE>
<CAPTION>
                                                      PERCENT OF REVENUES           PERCENTAGE
                                                      FOR THE YEARS ENDED      INCREASE (DECREASE)
                                                            MAY 31,            --------------------
                                                    -----------------------    1996 TO     1995 TO
                                                    1997     1996     1995       1997        1996
                                                    -----    -----    -----    --------    --------
<S>                                                 <C>      <C>      <C>      <C>         <C>
Revenues:
  Software products and services..................   44.6%    52.4%    60.0%   (21.5)%     (23.1)%
  Maintenance and support services................   55.4     47.6     40.0      7.4         4.5
                                                    -----    -----    -----      ---         ---
                                                    100.0    100.0    100.0     (7.7)      (12.1)
                                                    -----    -----    -----      ---         ---
Costs and expenses:
  Software products and services..................   36.0     37.5     30.5    (24.5)       (5.5)
  Maintenance and support services................   50.4     59.1     48.5     (8.4)       27.2
                                                    -----    -----    -----      ---         ---
                                                     44.0     47.8     37.7    (15.0)       11.3
  Marketing, general and administrative...........   54.9     57.0     37.0    (11.1)       35.6
  Research and development........................   16.8      9.3      9.6     67.0       (14.6)
  Restructuring charges...........................   15.3     23.5       --    (39.9)        N/M
  Stock repurchase................................    9.3       --       --      N/M         N/M
                                                    -----    -----    -----      ---         ---
                                                    140.3    137.6     84.3     (5.9)       43.6
                                                    -----    -----    -----      ---         ---
Operating income (loss)...........................  (40.3)   (37.6)    15.7     (1.2)        N/M
Interest and other income.........................    2.0      2.8      3.0    (33.9)      (18.2)
                                                    -----    -----    -----      ---         ---
Income (loss) from continuing operations before
  income taxes....................................  (38.3)   (34.8)    18.7      1.4         N/M
Provision for (benefit from) income taxes.........  (14.1)   (14.2)     6.7     (8.8)        N/M
                                                    -----    -----    -----      ---         ---
Income (loss) from continuing operations..........  (24.2)   (20.6)    12.0      8.5         N/M
Discontinued operation, net of taxes..............    1.1      1.8      1.4    (42.6)        7.1
                                                    -----    -----    -----      ---         ---
Net income (loss).................................  (23.1)%  (18.8)%   13.4%     N/M         N/M
                                                    =====    =====    =====      ===         ===
</TABLE>
 
- ---------------
(1) Shown as a percent of related revenues.
 
     Operating revenues are derived from two sources: (1) license fees and the
related services for licensing the Company's software products; and (2)
maintenance and support services related to such software products.
 
COMPARISON OF FISCAL YEAR 1997 TO FISCAL YEAR 1996
 
  SOFTWARE PRODUCTS AND SERVICES
 
     Software products and services revenues decreased 22% to $8.1 million in
fiscal 1997 compared to $10.4 million in fiscal 1996. The decrease in revenues
was attributable, in part, to the delay in the release of certain new
Windows-based products, including the next generation of Decision Support
Systems. Also contributing to the decline was a continued lengthening of the
sales cycle, due to complex implementation plans related to the increasing
number of clients migrating from the DOS-based to Windows-based products,
principally in the CDS division. Additionally, the Company experienced a
continuing weakness in its existing markets and product lines, resulting from
price pressures and consolidations in the healthcare industry and in the managed
care environment. Costs and expenses for software products and services
decreased 25% to $2.9 million compared to $3.9 million in fiscal 1996. Costs and
expenses as a percentage of related revenue were 36% and 38% for fiscal 1997 and
1996, respectively. The decrease was due to cost containment measures initiated
by management and a lower volume of services provided.
 
                                      D-11
<PAGE>   135
 
  MAINTENANCE AND SUPPORT SERVICES
 
     Maintenance and support services revenues increased 7% to $10.1 million in
fiscal 1997 compared to $9.4 million in fiscal 1996. The increase was primarily
due to the continuing migration of clients to the Company's Windows-based
products, along with modest price increases for certain products. Costs and
expenses decreased 8% to $5.1 million in fiscal 1997 compared to $5.6 million in
fiscal 1996. Costs and expenses as a percentage of related revenue were 50% and
59% for fiscal 1997 and 1996, respectively. The decrease was primarily due to a
shift in focus of technical personnel from maintenance activities to development
activities to complete certain new Windows-based products.
 
  MARKETING, GENERAL AND ADMINISTRATIVE
 
     Marketing, general and administrative expenses decreased 11% to $10.0
million in fiscal 1997 compared to $11.3 million in fiscal 1996. The decrease
primarily was due to higher expenses in the prior year related to the increase
in the provision for doubtful accounts, and expenses related to the separation
of the managed care business.
 
  RESEARCH AND DEVELOPMENT
 
     Total expenditures for research and development (including amounts
capitalized and funded by clients) increased 12% to $4.6 million in fiscal 1997
from $4.1 million in fiscal 1996. Research and development costs charged to
expense were $3.1 million in fiscal 1997 compared to $1.8 million in fiscal
1996. The Company did not obtain funding from clients under development service
agreements during the twelve months ended May 31, 1997, compared to $218,000
obtained in fiscal 1996, for its research and development efforts. These
development service agreements provide for retention of ownership of the
products developed by the Company. The Company capitalized software development
costs of $1.8 million in fiscal 1997 and $2.0 million in fiscal 1996 pursuant to
Statement of Financial Accounting Standards No. 86. Costs capitalized in fiscal
1997 were partially offset by $240,000 in provisions recorded as part of the
abandonment of certain development efforts. Total research and development
expenditures (including amounts capitalized and funded by clients) were 56% and
39% of software products and services revenues during fiscal 1997 and 1996,
respectively. During fiscal 1997, the Company's development efforts focused on
the Clinical Data Systems and Decision Support Systems product lines. During
fiscal 1996, the Company's development efforts focused on the Resource Case
Management System, Medicus Architecture (MACH 1), and the Decision Support
Systems product line.
 
  RESTRUCTURING CHARGES
 
     As part of an ongoing evaluation, the Company refined its strategic
planning process during fiscal 1997, and assessed continuing obligations
associated with the implementation of its strategic plan. The Company continued
the process of implementing its plans during 1997 and, following the stock
repurchase from its founder in the quarter ended February 28, 1997, recorded
$2.8 million in restructuring charges to complete its plan, including accruing
costs to reorganize the Company's business units, to abandon certain development
efforts, and to increase the allowance for doubtful accounts. Specifically, the
Company decided to relocate operations for its Clinical Data Systems ("CDS")
division, based in Alameda, CA, to the Company's Evanston, IL corporate offices.
Costs associated with the relocation, which is expected to be completed during
the next nine months, included costs to cancel existing lease agreements, to
terminate employees and to write down abandoned assets. The Company did not
accrue estimated incremental costs of approximately $1.3 million associated with
the relocation. Such costs relate to the orderly transition of the division,
will be incurred during fiscal 1998 and are not accruable as part of the
restructuring charge under generally accepted accounting principles. In
addition, the Company increased it reserves for product line exit costs and
severance costs that relate to the remaining customers of the previously
discontinued Clinical Case Management Systems ("CCM") product line. Also,
certain product development efforts for the Company's Patient Focused Systems
("PFS") products were abandoned, and the associated development costs, which had
been previously capitalized, along with other related product line exit costs
were expensed. The Company has increased its allowance for doubtful accounts due
to the potential for certain additional billed and unbilled
                                      D-12
<PAGE>   136
 
accounts becoming uncollectible as a result of the decisions discussed above.
Direct costs and expenses of the restructuring were 15% of fiscal 1997 revenues.
 
  STOCK REPURCHASE
 
     On December 5, 1996, the Company reached an agreement in principle (the
"Agreement") with its founder, Richard C. Jelinek, to purchase from Mr. Jelinek,
and a trust of which he is a beneficiary (the "Trust"), one million shares of
Common Stock and 500 shares of Voting Preferred Stock. Also, Mr. Jelinek agreed
to resign as Chairman and agreed, among other things, not to attempt to seek
voting control of the Company for a period of five years. In exchange, the
Company agreed to pay Mr. Jelinek and the Trust $4.5 million in cash and $2.0
million in 8% two-year promissory notes, and to issue to Mr. Jelinek and the
Trust 400,000 five-year warrants to purchase Common Stock at $8.00 per share.
 
     The Company's results of operations for the year ended May 31, 1997
included $1,690,042 in related costs and expenses, as a result of the Agreement.
Amounts in excess of the market price of the Common Stock and the exercise price
of the Voting Preferred Stock, aggregating $1,319,000, have been expensed. Also
included are $371,042 in investment banking and other professional fees incurred
to consummate the Agreement.
 
  INTEREST AND OTHER INCOME
 
     Interest and other income decreased 34% to $367,000 in fiscal 1997 compared
to $556,000 in fiscal 1996, primarily due to lower average cash balances.
 
  INCOME TAXES
 
     The Company's effective income tax rate benefit decreased to 37% in fiscal
1997 compared to 41% in fiscal 1996. The decrease was primarily attributable to
the fiscal 1997 net operating loss and stock repurchase transaction.
 
  DISCONTINUED OPERATION
 
     Results from the Company's discontinued line of business decreased 43% to
$199,000 in fiscal 1997 compared to $347,000 in fiscal 1996, primarily due to
lower revenues from the contract to manage the information systems functions at
Bethesda, Inc. in Cincinnati, Ohio.
 
COMPARISON OF FISCAL YEAR 1996 TO FISCAL YEAR 1995
 
  SOFTWARE PRODUCTS AND SERVICES
 
     Software products and services revenues decreased 23% to $10.4 million in
fiscal 1996 compared to $13.5 million in fiscal 1995. The decrease in revenue
was attributable, in part, to a general weakness in the Company's primary
markets and product lines, resulting from continued consolidations in the
healthcare industry and growing price pressures in the current managed
healthcare environment. Also contributing to the decline were delays in the
release of certain Windows-based products, higher than expected turnover in the
sales force, the increasing complexity and size of new contracts and the related
lengthening of the sales cycle. Additionally, the Company continued to
experience increased competition in many of its markets. Costs and expenses for
software products and services decreased 6% to $3.9 million compared to $4.1
million in fiscal 1995. Costs and expenses as a percentage of related revenue
were 38% and 31% for fiscal 1996 and 1995, respectively. The increase was due to
the mix of software, hardware and implementation revenue.
 
  MAINTENANCE AND SUPPORT SERVICES
 
     Maintenance and support services revenues increased 5% to $9.4 million in
fiscal 1996 compared to $9.0 million in fiscal 1995. The increase was primarily
due to a larger installed base of licensed products and modest price increases
for the Company's maintenance and support services. Costs and expenses increased
27% to $5.6 million compared to $4.4 million in fiscal 1995. Costs and expenses
as a percentage of related
 
                                      D-13
<PAGE>   137
 
revenue were 59% and 49% for fiscal 1996 and 1995, respectively. The increase
was primarily due to a shift in focus of technical personnel to maintenance
activities from development activities during fiscal 1996, and incremental
expenses related to supporting clients on the Company's new Windows-based
products as well as the technology platforms historically support by the
Company.
 
  MARKETING, GENERAL AND ADMINISTRATIVE
 
     Marketing, general and administrative expenses increased 36% to $11.3
million in fiscal 1996 compared to $8.3 million in fiscal 1995. The increase
primarily resulted from an increase in the provision for doubtful accounts,
following a comprehensive analysis necessitated by the current market conditions
in the healthcare industry, and expenses related to the separation of the
managed care business.
 
  RESEARCH AND DEVELOPMENT
 
     Total expenditures for research and development (including amounts
capitalized and funded by clients) remained constant at $4.1 million in fiscal
1996 and 1995. Research and development costs charged to expense were $1.8
million in fiscal 1996 compared to $2.2 million in fiscal 1995. The Company
obtained funding from clients under product development service agreements of
$218,000 and $509,000 in fiscal 1996 and 1995, respectively, for its research
and development efforts. These development service agreements provide for
retention of ownership of the products developed by the Company. The Company
capitalized software development costs of $2.0 million in fiscal 1996 and $1.4
million in fiscal 1995 pursuant to Statement of Financial Accounting Standards
No. 86. Total research and development expenditures (including amounts
capitalized and funded by clients) were 39% and 30% of software products and
services revenues during fiscal 1996 and 1995, respectively. During fiscal 1996,
the Company's development efforts focused on the Resource Case Management
System, Medicus Architecture (MACH 1), and the Decision Support Systems product
line. During fiscal 1995, the Company's development efforts focused on the
Clinical Case Management System, the Resource Case Management System, the
WinCoder+ and Workload/Productivity modules.
 
  RESTRUCTURING CHARGES
 
     During February, 1996, the Company commenced a process to evaluate its
current strategic position, including the markets it expects to pursue and its
product offerings in those chosen markets. As a result of decisions made as part
of this evaluation process, the Company recorded $4.7 million in restructuring
charges, representing costs and expenses to exit certain product lines, to
abandon certain product development efforts and to provide for liabilities
resulting from the strategic redirection of the Company, including severance
costs. Specifically, the Company decided to exit the Clinical Case Management
Systems and the Executive Information Systems product lines. Additionally,
product development efforts for the Clinical Data Systems Wincoder V2 project
and portions of the MACH 1 project, which will no longer be utilized in the
Medicus product line, were abandoned and their associated development costs,
which had been previously capitalized, were expensed. Severance costs associated
with an officer and several employees, in addition to the write-off of a portion
of the Contract Management System, were also included in the restructuring
charge. Direct costs and expenses of the restructuring were 24% of fiscal 1996
revenues.
 
  INTEREST AND OTHER INCOME
 
     Interest and other income decreased 18% to $556,000 in fiscal 1996 compared
to $680,000 in fiscal 1995, primarily due to lower average cash balances.
 
  INCOME TAXES
 
     The Company's effective income tax rate increased to 41% in fiscal 1996
compared to 36% in fiscal 1995. The increase was primarily attributable to the
fiscal 1996 suspension of the research and development tax credit.
 
                                      D-14
<PAGE>   138
 
  DISCONTINUED OPERATION
 
     Results from the Company's discontinued line of business increased 7% to
$347,000 in fiscal 1996 compared to $324,000 in fiscal 1995, primarily due to
higher revenues from the contract to manage the information systems functions at
Bethesda, Inc. in Cincinnati, Ohio.
 
FINANCIAL CONDITION
 
  LIQUIDITY AND CAPITAL RESOURCES
 
     As a result of the Company's commitment to expand its software products and
services, funds are required to support its ongoing product research and
development activities and the infrastructure required to serve its customer
base. Historically, cash generated from its operations has been an important
contributor to these needs. As a result of the market factors adversely
affecting fiscal 1997 results, as well as the stock repurchase transaction, the
Company was required to use a significant portion of its cash reserves. It is
expected that, following the restructuring efforts described herein, the Company
will return to a situation where cash from operations will provide an important
source of liquidity to support its normal capital needs, although numerous
factors, including any reductions in revenues from currently anticipated
amounts, could affect the amount of such cash available.
 
     At May 31, 1997, the Company had available cash reserves of approximately
$1.2 million. In addition, the Company had a $2.5 million standby credit
facility available. $1.0 million of the principal amount of the Company's 8%
promissory notes, issued in connection with the Company's stock repurchase
agreement, is due in March 1998. In addition, the Company anticipates cash
outlays of approximately $3.2 million in the next nine months, resulting
primarily from its decision to reorganize its business units and to exit certain
product lines.
 
     The Board of Directors of the Company has determined not to pay dividends
on the common stock for the foreseeable future. While the Company has
experienced negative cash flows from operating activities during the past two
fiscal years, management believes that, as a result of significant reductions in
expenses, its cash flows will improve. While there can be no assurance that this
will occur, the Company currently believes that it will have adequate financial
resources available from operations and the available credit facility to provide
sufficient liquidity to meet its ordinary capital requirements for the
foreseeable future, including the March 1998 payment on the promissory notes and
cash outlays related to the Company's restructuring plan.
 
     During its second fiscal quarter, the Company bills its clients in advance
for the next calendar year's maintenance and support services provided on its
software products. This generates an increase in the Company's accounts
receivable and deferred revenue balances during those periods, and increases
cash balances in subsequent months as the related accounts receivable are
collected.
 
  IMPACT OF INFLATION
 
     To date, inflation has not had a material impact on the Company's revenues
or income.
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Report of Independent Accountants...........................  F-1
Balance Sheets as of May 31, 1997 and 1996..................  F-2
Statements of Operations for the years ended May 31, 1997,
  1996 and 1995.............................................  F-3
Statements of Changes in Stockholders' Equity for the years
  ended May 31, 1997, 1996 and 1995.........................  F-4
Statements of Cash Flows for the years ended May 31, 1997,
  1996 and 1995.............................................  F-5
Notes to Financial Statements...............................  F-6
</TABLE>
 
                                      D-15
<PAGE>   139
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Board of Directors and
Stockholders of Medicus Systems Corporation
 
     In our opinion, the accompanying balance sheets and the related statements
of operations, of changes in stockholders' equity and of cash flows present
fairly, in all material respects, the financial position of Medicus Systems
Corporation at May 31, 1997 and 1996, and the results of its operations and its
cash flows for each of the three years in the period ended May 31, 1997, in
conformity with generally accepted accounting principles. These financial
statements are the responsibility of the Company's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these statements in accordance with
generally accepted auditing standards which require that we plan and perform the
audits to obtain reasonable assurance about whether the financial statements are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by
management, and evaluating the overall financial statement presentation. We
believe that our audits provide a reasonable basis for the opinion expressed
above.
 
                                          PRICE WATERHOUSE LLP
 
Chicago, Illinois
July 23, 1997
 
                                       F-1
<PAGE>   140
 
                          MEDICUS SYSTEMS CORPORATION
 
                                 BALANCE SHEETS
                             MAY 31, 1997 AND 1996
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                 1997           1996
                                                              -----------    -----------
<S>                                                           <C>            <C>
Current assets:
  Cash and cash equivalents.................................  $ 1,205,135    $   765,312
  Short-term investments....................................           --      7,705,380
  Accounts receivable and unbilled services, net of
     allowance for doubtful accounts of $1,713,008 and
     $1,222,463, respectively...............................   10,500,676      8,451,675
  Inventories...............................................      214,264        235,398
  Prepaid expenses and other................................      258,725        638,669
  Prepaid and deferred income taxes.........................    2,147,416      2,650,076
  Due from Managed Care Solutions, Inc......................           --        647,408
  Net assets of discontinued operation......................      111,381      1,020,764
                                                              -----------    -----------
                                                               14,437,597     22,114,682
                                                              -----------    -----------
Property and equipment, at cost less accumulated
  depreciation..............................................    2,335,175      2,794,932
Internally developed software, at cost less accumulated
  amortization of $2,110,378 and $1,729,141, respectively...    3,087,849      2,152,419
Installment accounts receivable, due after one year, less
  unearned interest of $154,647 and $147,963,
  respectively..............................................      533,488        398,897
Deferred income taxes.......................................    2,454,563        227,635
                                                              -----------    -----------
                                                              $22,848,672    $27,688,565
                                                              ===========    ===========
                          LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable..........................................  $   597,787    $   188,777
  Accrued compensation......................................      453,035      1,487,551
  Accrued restructuring charges.............................    2,247,416      1,527,461
  Other accrued liabilities.................................    1,138,226        970,140
  Deferred revenue..........................................    6,910,599      5,313,399
  Notes payable.............................................    1,000,000             --
                                                              -----------    -----------
                                                               12,347,063      9,487,328
                                                              ===========    ===========
Notes payable...............................................    1,000,000             --
                                                              -----------    -----------
Stockholders' equity:
  Preferred stock $1,000 par, 500 shares authorized and
     issued.................................................      500,000             --
  Common stock $.01 par:
     Authorized -- 10,000,000 shares Issued -- 6,487,159
      shares and 6,456,447 shares, respectively.............       64,872         64,564
  Capital in excess of par value............................   22,063,715     21,880,994
  Capital in excess of par value -- warrant.................      944,000             --
  Less treasury stock:
     Preferred stock, at cost -- 500 shares.................     (500,000)            --
     Common stock, at cost -- 1,007,002 and 7,002 shares,
      resp..................................................   (5,687,418)       (62,418)
  Unrealized loss on short-term investments.................           --        (18,361)
  Accumulated deficit.......................................   (7,883,560)    (3,663,542)
                                                              -----------    -----------
                                                                9,501,609     18,201,237
                                                              -----------    -----------
                                                              $21,848,672    $27,688,565
                                                              ===========    ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       F-2
<PAGE>   141
 
                          MEDICUS SYSTEMS CORPORATION
 
                            STATEMENTS OF OPERATIONS
                FOR THE YEARS ENDED MAY 31, 1997, 1996 AND 1995
 
<TABLE>
<CAPTION>
                                                         1997           1996           1995
                                                      -----------    -----------    -----------
<S>                                                   <C>            <C>            <C>
Revenues:
  Software products and services....................  $ 8,148,858    $10,374,977    $13,495,033
  Maintenance and support services..................   10,120,842      9,419,202      9,012,234
                                                      -----------    -----------    -----------
                                                       18,269,700     19,794,179     22,507,267
                                                      -----------    -----------    -----------
Costs and expenses:
  Software products and services....................    2,936,115      3,889,458      4,117,822
  Maintenance and support services..................    5,098,992      5,563,821      4,374,432
                                                      -----------    -----------    -----------
                                                        8,035,107      9,453,279      8,492,254
  Marketing, general and administrative.............   10,034,473     11,287,826      8,325,563
  Research and development..........................    3,065,552      1,835,575      2,149,188
  Restructuring charges.............................    2,800,391      4,662,203             --
  Stock repurchase..................................    1,690,042             --             --
                                                      -----------    -----------    -----------
                                                       25,625,565     27,238,883     18,967,005
                                                      -----------    -----------    -----------
Operating income (loss).............................   (7,355,865)    (7,444,704)     3,540,262
  Interest and other income.........................      367,430        555,742        679,547
                                                      -----------    -----------    -----------
Income (loss) from continuing operations before
  income taxes......................................   (6,988,435)    (6,888,962)     4,219,809
Provision for (benefit from) income taxes...........   (2,569,365)    (2,816,313)     1,519,131
                                                      -----------    -----------    -----------
Income (loss) from continuing operations............   (4,419,070)    (4,072,649)     2,700,678
Discontinued operation, net of taxes................      199,052        346,658        323,815
                                                      -----------    -----------    -----------
Net income (loss)...................................  $(4,220,018)   $(3,725,991)   $ 3,024,493
                                                      ===========    ===========    ===========
Earnings (loss) per common and common equivalent
  share, pro forma for 1996 and 1995
  Continuing operations.............................  $     (0.73)   $     (0.62)   $      0.40
  Discontinued operation............................         0.03           0.05           0.05
                                                      -----------    -----------    -----------
                                                      $     (0.70)   $     (0.57)   $      0.45
                                                      ===========    ===========    ===========
Weighted average common and common equivalent shares
  outstanding.......................................    6,007,023      6,539,988      6,704,251
                                                      ===========    ===========    ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       F-3
<PAGE>   142
 
                          MEDICUS SYSTEMS CORPORATION
 
                 STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
                FOR THE YEARS ENDED MAY 31, 1997, 1996 AND 1995
<TABLE>
<CAPTION>
                                                                   CAPITAL IN                              UNREALIZED
                              PREFERRED    COMMON     CAPITAL IN   EXCESS OF     TREASURY      TREASURY      LOSS ON
                                STOCK       STOCK     EXCESS OF    PAR VALUE       STOCK        STOCK      SHORT-TERM      ACCUM.
                                VALUE     PAR VALUE   PAR VALUE     WARRANT     (PREFERRED)    (COMMON)    INVESTMENTS    DEFICIT
                              ---------   ---------   ----------   ----------   -----------   ----------   -----------   ----------
<S>                           <C>         <C>         <C>          <C>          <C>           <C>          <C>           <C>
Balance, May 31, 1994.......
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
 Net income.................
 Payments to Predecessor
   Corporation, net.........
 Market value adjustment of
   short-term investments,
   net of income taxes......                                                                                 (58,430)
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
Balance, May 31, 1995.......                                                                                 (58,430)
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
 Net loss prior to February
   29, 1996 distribution....
 Payments to Predecessor
   Corporation, net.........
 Market value adjustment of
   short-term investments,
   net of income taxes......                                                                                  57,379
 February 29, 1996
   distribution of common
   stock....................               64,320     21,702,593                                 (62,418)
 Net loss subsequent to
   February 29, 1996
   distribution.............                                                                                             (3,472,219)
 Sale of stock under
   employee stock purchase
   plan.....................                   79        42,574
 Sale of stock under
   employee stock option
   plan, including tax
   benefits.................                  165       112,835
 Vested portion of stock
   options applicable to
   compensation expense.....                             22,992
 Declaration of dividends...                                                                                               (191,323)
 Market value adjustment of
   short-term investments,
   net of income taxes......                                                                                 (17,310)
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
Balance, May 31, 1996.......        --     64,564     21,880,994         --            --        (62,418)    (18,361)    (3,663,542)
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
 Net loss...................                                                                                             (4,220,018)
 Stock repurchase...........  $500,000                              944,000      (500,000)    (5,625,000)
 Sale of stock under
   employee stock purchase
   plan.....................                  308       171,759
 Vested portion of stock
   options applicable to
   compensation expense.....                             10,962
 Mrkt value adjustment of
   short-term investments,
   net of income taxes......                                                                                  18,361
                              --------     ------     ----------    -------      --------     ----------    --------     ----------
Balance, May 31,1996........   500,000     64,872     22,063,715    944,000      (500,000)    (5,687,418)         --     (7,883,560)
 
<CAPTION>
 
                                 GROUP
                                EQUITY        TOTAL
                              -----------   ----------
<S>                           <C>           <C>
Balance, May 31, 1994.......   25,574,678   25,574,678
                              -----------   ----------
 Net income.................    3,024,493    3,024,493
 Payments to Predecessor
   Corporation, net.........   (6,236,370)  (6,236,370)
 Market value adjustment of
   short-term investments,
   net of income taxes......                   (58,430)
                              -----------   ----------
Balance, May 31, 1995.......   22,362,801   22,304,371
                              -----------   ----------
 Net loss prior to February
   29, 1996 distribution....     (253,772)    (253,772)
 Payments to Predecessor
   Corporation, net.........     (404,534)    (404,534)
 Market value adjustment of
   short-term investments,
   net of income taxes......                    57,379
 February 29, 1996
   distribution of common
   stock....................  (21,704,495)          --
 Net loss subsequent to
   February 29, 1996
   distribution.............                (3,472,219)
 Sale of stock under
   employee stock purchase
   plan.....................                    42,653
 Sale of stock under
   employee stock option
   plan, including tax
   benefits.................                   113,000
 Vested portion of stock
   options applicable to
   compensation expense.....                    22,992
 Declaration of dividends...                  (191,323)
 Market value adjustment of
   short-term investments,
   net of income taxes......                   (17,310)
                              -----------   ----------
Balance, May 31, 1996.......           --   18,201,237
                              -----------   ----------
 Net loss...................                (4,220,018)
 Stock repurchase...........                (4,681,000)
 Sale of stock under
   employee stock purchase
   plan.....................                   172,067
 Vested portion of stock
   options applicable to
   compensation expense.....                    10,962
 Mrkt value adjustment of
   short-term investments,
   net of income taxes......                    18,361
                              -----------   ----------
Balance, May 31,1996........           --    9,501,609
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       F-4
<PAGE>   143
 
                          MEDICUS SYSTEMS CORPORATION
 
                            STATEMENTS OF CASH FLOWS
                FOR THE YEARS ENDED MAY 31, 1997, 1996 AND 1995
 
<TABLE>
<CAPTION>
                                                        1997           1996            1995
                                                     -----------    -----------    ------------
<S>                                                  <C>            <C>            <C>
Cash flows from operating activities:
  Net income (loss)................................  $(4,220,018)   $(3,725,991)   $  3,024,493
  Adjustments to reconcile net income (loss) to net
     cash provided by (used in) operating
     activities:
     Depreciation and amortization of property and
       equipment...................................    1,097,274        683,281         592,411
     Amortization of software......................      381,238      1,229,408         538,933
     Deferred income taxes.........................      (62,612)    (2,410,259)        383,374
     Restructuring charges.........................    1,446,781      4,208,496              --
     Stock repurchase..............................    1,319,000             --              --
     Provision for doubtful accounts...............      368,361      1,483,173              --
     Changes in current assets and current
       liabilities:
       Accounts receivable and unbilled services...   (1,917,262)    (1,740,049)       (495,179)
       Due from Managed Care Solutions, Inc........      647,408       (647,408)             --
       Inventories.................................       21,134        (25,451)         67,641
       Prepaid expenses and other current assets...   (1,371,036)      (351,855)       (290,798)
       Installment accounts receivable.............     (134,591)       162,557        (290,685)
       Accounts payable............................      409,268       (433,420)        187,697
       Accrued compensation........................   (1,034,516)       768,542        (320,241)
       Other accrued liabilities...................      212,033        195,687        (141,065)
       Deferred revenue............................    1,597,200        299,375         300,080
                                                     -----------    -----------    ------------
Net cash provided by (used in) operating
  activities.......................................   (1,240,338)      (303,914)      3,556,661
                                                     -----------    -----------    ------------
Cash flows from investing activities:
  Additions to property and equipment..............     (619,932)      (806,997)       (871,222)
  Additions to internally developed software.......   (1,593,494)    (2,301,701)     (1,956,169)
  Purchase of short-term investments...............  (86,846,102)   (42,565,224)    (78,747,517)
  Proceeds from sale of short-term investments.....   89,798,110     39,903,650      61,760,000
  Proceeds from maturity of short-term
     investments...................................    4,784,360      5,033,377      23,683,611
                                                     -----------    -----------    ------------
Net cash provided by (used in) investing
  activities.......................................    5,522,942       (736,895)      3,868,703
                                                     -----------    -----------    ------------
Cash flows from financing activities:
     Sale of preferred stock.......................      500,000             --              --
     Sale of common stock..........................      157,219         38,830              --
     Stock repurchase..............................   (4,500,000)            --              --
     Payments from Predecessor Corporation.........           --        761,984       1,295,470
     Payments to Predecessor Corporation...........           --     (1,359,386)     (7,338,969)
     Dividends paid................................           --       (191,323)             --
                                                     -----------    -----------    ------------
Net cash used in financing activities..............   (3,842,781)      (749,895)     (6,043,499)
                                                     -----------    -----------    ------------
Net increase (decrease) in cash and cash
  equivalents......................................      439,823     (1,790,704)      1,381,865
Cash and cash equivalents:
          Beginning of period......................      765,312      2,556,016       1,174,151
                                                     -----------    -----------    ------------
          End of period............................  $ 1,205,135    $   765,312    $  2,556,016
                                                     ===========    ===========    ============
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       F-5
<PAGE>   144
 
                          MEDICUS SYSTEMS CORPORATION
 
                         NOTES TO FINANCIAL STATEMENTS
 
NOTE 1. GENERAL INFORMATION AND BASIS OF PRESENTATION
 
     Prior to March 1, 1996, the Company's predecessor (the "Predecessor
Corporation") operated a software and related services business and a small
managed care business. In connection with a series of transactions which
occurred on March 1, 1996, the Predecessor Corporation formed a new Delaware
subsidiary, Medicus Systems Software, Inc., to which it transferred all of its
assets and liabilities excluding only the defined assets and liabilities of its
managed care business. In turn, the stock of this newly-formed subsidiary was
distributed on a share-for-share basis to the stockholders of the Predecessor
Corporation (the "Distribution"), the name of the subsidiary was changed to
Medicus Systems Corporation (the "Company"), and the name of the Predecessor
Corporation was changed to Managed Care Solutions, Inc. ("MCS"). The Company is
liable for all obligations of the Predecessor Corporation except those
specifically related to the Predecessor Corporation's managed care business.
 
     Although the Company is, in substance, the Predecessor Corporation's
successor, the financial statements of the Company have been prepared as if the
Company had operated as a free-standing entity for all the periods presented
(excluding certain incremental corporate expenses that would have been incurred
had it operated on a stand-alone basis). Accordingly, the financial statements
include those assets, liabilities, revenues and expenses directly attributable
to the Company's operations and exclude those specifically related to the
managed care business. The Company believes this presentation most fairly
represents its financial condition, results of operations and changes in
stockholders' equity and cash flows. The financial statements included herein
for periods prior to the Distribution do not necessarily reflect what the
financial position and results of operations of the Company would have been had
it operated as a stand-alone entity during the periods covered, and may not be
indicative of future operations or financial position.
 
     The Company and MCS signed a services agreement, pursuant to which the
Company (i) made available to MCS certain services, including tax, accounting,
data processing, cash management, employee benefits, monitoring, operational,
supervisory, insurance purchasing and claims administration consulting services,
and (ii) provided certain financial services to MCS, including analysis and
advice regarding potential financial transactions (including but not limited to
proposed issuance of debt or equity securities, proposed merger or asset
acquisition or sale transactions and dividend, stock split or similar
transactions), assistance in budget and forecast preparation, relations with
financial analysts, financial press, and investors, and crisis management and
control. Such services commenced on March 1, 1996, and continued for one year.
MCS paid the Company $700,000 for such services. In order to compensate the
Company for fixed costs incurred in making such services available, MCS paid
such fees whether or not it elected to utilize the services. MCS also reimbursed
the Company for its out-of-pocket expenses in connection therewith. The services
agreement also provided that the Company would not be liable for any losses or
damages suffered in respect of services to be performed thereunder, other than
by reason of its willful misconduct or gross negligence in performing such
services. Marketing, general and administrative expenses were reduced by
$525,000 and $175,000 in the years ended May 31, 1997 and 1996, respectively, as
a result of this agreement.
 
NOTE 2. NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
NATURE OF OPERATIONS
 
     Medicus develops, markets, and supports a family of specialized integrated
software products utilized by healthcare financial administrators, physicians
and nursing executives, health information and other administrative departments
in the United States and Canada. The Company's software products and services
enable clients to capture, structure and analyze clinical, operational and
financial information thereby allowing these professionals to measure, monitor
and manage organizational performance and optimize outcomes. Medicus also
provides product-related maintenance and support services.
 
                                       F-6
<PAGE>   145
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
  Revenue recognition
 
     Revenue from software license agreements is recognized upon contract
execution, product delivery and client acceptance in instances where no
remaining obligations under the agreement exist. In instances where minor
obligations remain under a license agreement after the delivery of the product,
a pro rata portion of the revenue is deferred until the minor obligations have
been fulfilled. When the software product has been delivered but significant
obligations are present under a license agreement, the full amount of revenue
under the agreement is deferred and recognized as the related services are
performed. Revenue from maintenance and support agreements is recognized ratably
over the term of the contract.
 
  Inventories
 
     Inventories, which consist primarily of data processing equipment and
forms, are stated at the lower of cost or market value, cost being determined
using specific identification.
 
  Property and equipment
 
     Property and equipment are stated at cost. Depreciation is computed using
the straight-line method based upon an estimated useful life of five years.
Gains or losses resulting from sales or retirements are recorded as incurred, at
which time related costs and accumulated depreciation are removed from the
accounts. Renewals and betterments are capitalized and depreciated. Maintenance
and repairs are charged to expense as incurred.
 
     Purchased software used in operations is stated at cost. Amortization is
computed using the straight-line method based upon an estimated useful life of
three to five years. The amortization charged to expense in 1997, 1996 and 1995
totaled $305,415, $371,095 and $315,313, respectively.
 
  Internally developed software
 
     Costs of internally developed software (net of accumulated amortization)
aggregating $3,087,849 and $2,152,419 as of May 31, 1997 and 1996, respectively,
consist of certain production costs of computer software to be sold, leased or
otherwise marketed which have been capitalized in accordance with the provisions
of Statement of Financial Accounting Standards ("SFAS") No. 86. Capitalized
software costs are amortized on a product-by-product basis. Amortization is
computed based upon the ratio of current revenues to total anticipated revenues
or the straight-line method over the estimated life of the product (typically
three years), whichever provides the greater amortization. Amortization expense
for capitalized software costs totaled $381,237, $784,209 and $222,595 during
1997, 1996 and 1995, respectively.
 
  Research and development
 
     Research and development costs, principally the design and development of
proprietary software prior to the establishment of technological feasibility,
are expensed as incurred. Routine maintenance expenses incurred in connection
with specific software applications related to individual contracts are charged
to costs of software products and services as incurred.
 
  Income taxes
 
     The Company follows the provisions of Statement of Financial Accounting
Standards No. 109, "Accounting for Income Taxes." The statement requires an
asset and liability approach for financial accounting and reporting for income
taxes.
 
                                       F-7
<PAGE>   146
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
  Earnings per share
 
     Since the capital structure of the Company is comparable to that existing
prior to the Distribution, earnings (loss) per common share is based upon the
actual capital structure of the Company for the period from March 1, 1996
through May 31, 1997, and the capital structure of the Predecessor Corporation
for the period from June 1, 1995 through February 29, 1996. Pro forma earnings
(loss) per common share is based upon the capital structure of the Predecessor
Corporation, and does not necessarily reflect the results of operations of the
Company had it operated as a stand-alone entity during the periods presented,
and may not be indicative of future operations. Weighted average shares used in
the calculation of earnings (loss) per share represent common stock and common
stock equivalents. Common stock equivalents include shares issuable on the
exercise of stock options and the warrant (when dilutive), using the treasury
stock method from the date of grant.
 
  Management estimates
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities at the
date of the financial statements and the reported amounts of revenues and
expenses recognized during the periods presented. Actual results could differ
from those estimates.
 
  Fair value of financial instruments
 
     The carrying amounts reported in the balance sheets for cash, short-term
investments, accounts receivable, prepaid expenses and other current assets,
accounts payable, accrued expenses and notes payable approximate fair value
because of the immediate or short-term maturity of these financial instruments.
 
  Statements of cash flows
 
     For purposes of the Statements of Cash Flows, the Company considers cash
and cash equivalents to be cash and overnight investments. Actual cash paid for
income taxes for the years ended May 31, 1997, 1996 and 1995 was $90,561,
$539,559 and $1,427,700, respectively.
 
  Reclassifications
 
     Certain reclassifications have been made in the prior period financial
statements to conform to the current period presentation. These
reclassifications had no effect on previously reported total assets, total
liabilities, stockholders' equity or results of operations.
 
NOTE 3. DISCONTINUED OPERATION
 
     Effective May 31, 1997 the Company adopted a plan to discontinue its
contract services line of business. This separate line of business consisted of
information systems management contracts with two customers (one customer during
the year ended May 31, 1997). As a result of this decision, the net assets of
the contract services line of business have been reclassified in the Balance
Sheet at May 31, 1997 and 1996. Also, the results of operations of the contract
services business have been reclassified in the Statements of Operations for the
three years ended May 31, 1997.
 
                                       F-8
<PAGE>   147
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
     The assets and liabilities of the discontinued operation consist mainly of
the following:
 
<TABLE>
<CAPTION>
                                                       MAY 31,         MAY 31,
                                                         1997            1996
                                                     ------------    ------------
<S>                                                  <C>             <C>
Accounts receivable and unbilled services..........   $ 288,457       $1,212,747
Prepaid expenses and other.........................      45,702           70,725
Property and equipment.............................      37,032           54,617
Accounts payable and other accrued liabilities.....    (212,771)        (276,960)
Accrued compensation...............................     (47,039)         (40,365)
                                                      ---------       ----------
                                                      $ 111,381       $1,020,764
                                                      =========       ==========
</TABLE>
 
     The following table summarizes selected financial data of the contract
services business for the years ended May 31, 1997, 1996 and 1995:
 
<TABLE>
<CAPTION>
                                                    YEAR ENDED MAY 31,
                                          ---------------------------------------
                                             1997          1996          1995
                                          -----------   -----------   -----------
<S>                                       <C>           <C>           <C>
Revenues................................  $10,043,000   $11,271,000   $11,322,000
Operating income........................      324,000       573,000       506,000
Income tax expense......................      124,610       226,331       182,146
</TABLE>
 
     The contract services line of business is expected to continue operating
until the expiration of its remaining contract on May 31, 1998. This line of
business is not expected to incur losses or generate significant income prior to
its termination.
 
NOTE 4. RESTRUCTURING CHARGES
 
     During the third quarter of fiscal 1996, the Company commenced a process to
evaluate its strategic position, including the markets it will pursue and
product offerings in those chosen markets. As a result of decisions made in the
quarter ended February 29, 1996, the Company began a plan resulting in the
recording of approximately $1.6 million in charges to exit certain product lines
and abandon certain development efforts.
 
     Specifically, the Company decided to exit the Executive Information Systems
product line, recording charges to write down related customer accounts and
accrue future costs to provide maintenance associated with existing contractual
obligations. In addition, product development efforts for the Optimizer project
and portions of the MACH 1 project, which will no longer be utilized in the
Medicus product line, were abandoned and their associated development costs,
which had been previously capitalized, were expensed.
 
     During the fourth quarter of fiscal year 1996, the Company continued the
process resulting in additional charges of $3.1 million. The Company decided to
exit the Clinical Case Management Systems product line and abandon development
efforts for the Clinical Data Systems Wincoder V2 project. Severance costs
associated with an officer and several employees, in addition to the write-off
of a portion of the Contract Management System, were also included in the
restructuring charge.
 
     As part of an ongoing evaluation, the Company refined its strategic
planning process during fiscal 1997, and assessed continuing obligations
associated with the implementation of the plan. The Company continued the
process of implementing its plans during 1997 and, following the stock
repurchase from its founder in the quarter ended February 28, 1997, recorded
$2.8 million in charges to complete its plan, including accruing certain costs
to reorganize the Company's business units, to abandon certain development
efforts, and to increase the allowance for doubtful accounts. Specifically, the
Company decided to relocate operations for its Clinical Data Systems ("CDS")
division, based in Alameda, CA, to the Company's Evanston, IL corporate offices.
Costs accrued associated with the relocation, which is expected to be completed
during the next twelve months, included costs to cancel existing lease
agreements, to terminate employees and to write down abandoned assets. In
addition, the Company increased its reserves for product line exit costs and
severance
 
                                       F-9
<PAGE>   148
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
costs that relate to the remaining customer of the previously discontinued
Clinical Case Management Systems ("CCM") product line. Also, certain product
development efforts for the Company's Patient Focused Systems ("PFS") products
were abandoned, and the associated development costs, which had been previously
capitalized, along with other related product line exit costs were expensed. The
Company has increased its allowance for doubtful accounts due to the potential
for certain additional billed and unbilled accounts to become uncollectible as a
result of the decisions discussed above.
 
     The restructuring charges included in the Statements of Operations for the
years ended May 31, 1997 and May 31, 1996, respectively, were comprised of the
following items:
 
<TABLE>
<CAPTION>
                                                       MAY 31,       MAY 31,
                                                         1997          1996
                                                      ----------    ----------
<S>                                                   <C>           <C>
Product line exit costs.............................  $  798,000    $  856,633
Business unit reorganization costs..................     705,697            --
Employee termination and severance costs............     569,868     1,117,086
Accounts receivable and reserves....................     450,000       787,206
Capitalized software write-downs....................     276,826     1,901,278
                                                      ----------    ----------
                                                      $2,800,391    $4,662,203
                                                      ==========    ==========
</TABLE>
 
     The Company's revised strategic plan included the termination of three
officers and thirty-nine employees in 1997 and one officer and three employees
in 1996.
 
     At May 31, 1996, restructuring liabilities in the Balance Sheet aggregated
$1,527,461. During the year ended May 31, 1997, the Company increased its
reserve for employee termination and severance costs and product line exits
costs by $569,868 and $798,000, respectively, primarily due to the Company's
decision to relocate its CDS division and increase its CCM product line reserve.
The Company also recorded a $705,697 charge for business unit reorganization
costs associated with the relocation. The Company did not accrue estimated
incremental costs of approximately $1.3 million associated with the relocation.
Such costs relate to the orderly transition of the division, will be incurred
during fiscal 1998 and are not accruable as part of the restructuring charge
under generally accepted accounting principles. During the year ended May 31,
1997 the Company paid $763,844, $233,950 and $31,100 in severance benefits,
product line exit costs, and business unit reorganization costs, respectively.
The Company also reduced its reserve for severance obligations and continuing
obligations on product line exit costs by $124,716 and $200,000, respectively,
as a result of favorable settlements with two of its employees and negotiations
with its customers.
 
     The components of the restructuring reserve at May 31, 1997, which the
Company expects will be paid during the next twelve months, and at May 31, 1996
are as follows:
 
<TABLE>
<CAPTION>
                                                       MAY 31,       MAY 31,
                                                         1997          1996
                                                      ----------    ----------
<S>                                                   <C>           <C>
Product line exit costs.............................  $  774,425    $  410,375
Business unit reorganization costs..................     674,597            --
Employee termination and severance costs............     798,394     1,117,086
                                                      ----------    ----------
                                                      $2,247,416    $1,527,461
                                                      ==========    ==========
</TABLE>
 
NOTE 5. STOCK REPURCHASE
 
     On December 5, 1996, the Company reached an agreement in principle (the
"Agreement") with its founder, Richard C. Jelinek, to purchase from Mr. Jelinek,
and a trust of which he is a beneficiary (the "Trust"), one million shares of
Common Stock and 500 shares of Voting Preferred Stock. Also, Mr. Jelinek agreed
to resign as Chairman and agreed, among other things, not to attempt to seek
voting control of the Company for a period of five years. (Mr. Jelinek continues
to serve as a Director.) In exchange, the Company
 
                                      F-10
<PAGE>   149
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
agreed to pay Mr. Jelinek and the Trust $4.5 million in cash and $2.0 million in
8% two-year promissory notes, and to issue to Mr. Jelinek and the Trust 400,000
five-year warrants to purchase Common Stock at $8.00 per share. The Company's
Board of Directors approved the Agreement on January 2, 1997, and the Company's
stockholders approved the Agreement at the Annual Meeting of Stockholders on
March 19, 1997.
 
     The Company's results of operations for the year ended May 31, 1997
included $1,690,042 in related costs and expenses, as a result of the Agreement.
The fair value of consideration exchanged in excess of the market price of the
Common Stock and the exercise price of the Voting Preferred Stock, aggregating
$1,319,000, has been expensed. Also included are $371,042 in investment banking
and other professional fees incurred to consummate the Agreement. The Company
recorded the charge in the quarter ended February 28, 1997.
 
NOTE 6. PROPERTY AND EQUIPMENT
 
     Property and equipment as of May 31, 1997 and 1996 were comprised of the
following:
 
<TABLE>
<CAPTION>
                                                         1997          1996
                                                      ----------    ----------
<S>                                                   <C>           <C>
Equipment...........................................  $4,358,224    $3,797,976
Furniture and fixtures..............................     674,796       645,260
Leasehold improvements..............................     276,355       294,052
Purchased software used in operations...............   2,105,910     2,058,068
                                                      ----------    ----------
                                                       7,415,285     6,795,356
Less -- accumulated depreciation....................   5,080,110     4,000,424
                                                      ----------    ----------
                                                      $2,335,175    $2,794,932
                                                      ==========    ==========
</TABLE>
 
NOTE 7. INCOME TAXES
 
     The provision for (benefit from) income taxes from continuing operations
consisted of the following:
 
<TABLE>
<CAPTION>
                                                  YEAR ENDED MAY 31,
                                       ----------------------------------------
                                          1997           1996           1995
                                       -----------    -----------    ----------
<S>                                    <C>            <C>            <C>
Currently payable:
  Federal............................  $(2,183,016)   $  (344,770)   $  838,701
  State..............................     (323,737)       (61,284)      297,056
                                       -----------    -----------    ----------
                                        (2,506,753)      (406,054)    1,135,757
Deferred.............................      (62,612)    (2,410,259)      383,374
                                       -----------    -----------    ----------
                                       $(2,569,365)   $(2,816,313)   $1,519,131
                                       ===========    ===========    ==========
</TABLE>
 
     A reconciliation of total taxes based on the federal statutory rate and the
Company's actual total provision (benefit) was as follows:
 
<TABLE>
<CAPTION>
                                                  YEAR ENDED MAY 31,
                                       ----------------------------------------
                                          1997           1996           1995
                                       -----------    -----------    ----------
<S>                                    <C>            <C>            <C>
Income tax at the federal statutory
  rate of 34%........................  $(2,266,022)   $(2,147,430)   $1,606,762
State taxes, net of federal
  benefit............................     (197,944)      (281,377)      202,736
Research and development tax
  credit.............................     (111,439)            --      (179,659)
Effect of stock repurchase...........      191,760             --            --
Other, net...........................      (61,110)      (161,175)       71,438
                                       -----------    -----------    ----------
                                       $(2,444,755)   $(2,589,982)   $1,701,277
                                       ===========    ===========    ==========
</TABLE>
 
                                      F-11
<PAGE>   150
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
     The components of the deferred income tax provision (benefit) from
continuing operations were as follows:
 
<TABLE>
<CAPTION>
                                                   YEAR ENDED MAY 31,
                                          ------------------------------------
                                            1997          1996          1995
                                          ---------    -----------    --------
<S>                                       <C>          <C>            <C>
Provision for doubtful accounts.........  $(161,354)   $  (255,654)   $     --
Net operating loss carried forward......   (244,148)      (937,554)         --
Capitalization of software costs for
  financial reporting purposes..........    505,930       (350,483)    481,153
Depreciation............................    (14,751)       (53,416)    (58,122)
Financial reporting reserve recognized
  in advance of tax deduction...........   (148,289)      (813,152)    (39,657)
                                          ---------    -----------    --------
                                          $ (62,612)   $(2,410,259)   $383,374
                                          =========    ===========    ========
</TABLE>
 
     The deferred income tax assets and liabilities were comprised of the
following:
 
<TABLE>
<CAPTION>
                                                    AS OF MAY 31,
                                       ----------------------------------------
                                          1997           1996           1995
                                       -----------    -----------    ----------
<S>                                    <C>            <C>            <C>
Provision for doubtful accounts......  $  (659,508)   $  (498,154)   $ (242,500)
Financial reporting reserve
  recognized in advance of tax
  deduction..........................   (1,066,896)      (918,609)     (105,457)
Net operating loss carried forward...   (3,544,223)      (937,554)           --
Research and development credit
  carryforward.......................     (111,439)            --            --
Short-term investments...............           --        (12,628)      (40,184)
                                       -----------    -----------    ----------
Total deferred tax assets............   (5,382,066)    (2,366,945)     (388,141)
                                       -----------    -----------    ----------
Capitalization of software costs for
  financial reporting purposes.......    1,188,822        682,892     1,033,375
Depreciation.........................       12,277         27,028        80,444
                                       -----------    -----------    ----------
Total deferred tax liabilities.......    1,201,099        709,920     1,113,819
                                       -----------    -----------    ----------
Total net deferred taxes.............  $(4,180,968)   $(1,657,025)   $  725,678
                                       ===========    ===========    ==========
</TABLE>
 
     In connection with the Distribution, the Company and MCS agreed to share
the tax burdens of the Predecessor Corporation, based upon the taxable income of
the separate businesses prior to the Distribution. The Company and MCS are also
prohibited from taking any actions which are inconsistent with the tax-free
nature of the Distribution.
 
     The Company will be able to utilize tax net operating losses incurred
subsequent to the Distribution to the extent the Company has taxable income
subsequent to the Distribution.
 
     Management has determined that the net deferred tax asset more likely than
not will be realized in the future and, therefore, has not provided any
valuation allowances against these assets. The Company's net operating loss
carryforwards of $3,544,223 expire in 2011 and 2012, while research and
development tax credits expire in 2012.
 
NOTE 8. NOTES PAYABLE AND LINE OF CREDIT
 
     On December 5, 1996, the Company reached an agreement in principle with its
founder, Richard C. Jelinek, to purchase from Mr. Jelinek, and a trust of which
he is a beneficiary (the "Trust"), one million shares of Common Stock and 500
shares of Voting Preferred Stock. In exchange, the Company agreed to pay Mr.
Jelinek and the Trust $4.5 million in cash and $2.0 million in 8% two-year
promissory notes, and issued to
 
                                      F-12
<PAGE>   151
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
     Mr. Jelinek and the Trust 400,000 five-year warrants to purchase Common
Stock at $8.00 per share. The scheduled maturities are $1 million March 19, 1998
and $1 million March 19, 1999. Interest costs incurred and paid on the
promissory notes totaled $32,258 for the year ended May 31, 1997.
 
     In April 1997, the Company entered into an agreement with a bank that
provides for a secured, revolving line of credit up to a maximum of $2.5
million. The credit facility, which has an initial maturity date of October
1998, bears interest at the bank's prime rate and provides the bank with a first
security interest in all assets of the Company. Certain financial covenants and
reporting requirements are also included in the agreement. As of May 31, 1997,
the Company had not utilized the line of credit.
 
NOTE 9. STOCKHOLDERS' EQUITY
 
     The following table summarizes information regarding stockholders' equity
as of May 31, 1997:
 
<TABLE>
<CAPTION>
                                                                                               DIVIDEND
                                                                         TOTAL PAR    VOTES    RIGHT PER
                                     SHARES      SHARES     PAR VALUE      VALUE       PER       SHARE
                                   AUTHORIZED    ISSUED     PER SHARE   OUTSTANDING   SHARE    PER ANNUM
                                   ----------   ---------   ---------   -----------   ------   ---------
<S>                                <C>          <C>         <C>         <C>           <C>      <C>
Voting preferred stock...........         500          --   $1,000.00          --     44,000      (1)
Preferred stock..................   1,000,000          --         .01          --         (2)     (2)
Common stock.....................  10,000,000   6,487,159         .01     $64,872          1      --
</TABLE>
 
     The previous chairman of the board and chief executive officer exercised an
option to purchase all of the authorized and unissued shares of voting preferred
stock at $1,000 per share on March 19, 1997. The Company, as part of the stock
repurchase agreement, immediately repurchased these shares. The voting preferred
stock is currently held in treasury.
 
     The Board of Directors has the authority to determine the rights and
preferences of this preferred stock upon its issuance.
 
NOTE 10. STOCK OPTIONS AND WARRANTS
 
     Upon the Distribution, the Company adopted various stock option plans of
the Predecessor Corporation. Options to purchase Predecessor Corporation common
stock have been converted into options to purchase Medicus common stock based
upon the fair market value following the Distribution. The Company applies APB
Opinion 25 and related Interpretations to account for its plans. Accordingly, no
compensation cost is generally recognized for its stock option plans and its
employee stock purchase plan. Had compensation cost for the Company's
stock-based compensation plans been determined based on the fair value at the
grant dates for awards under those plans consistent with the method prescribed
by SFAS 123, "Accounting for Stock-Based Compensation," the Company's net income
and earnings per share would have been reduced to the pro forma amounts
indicated below:
 
<TABLE>
<CAPTION>
                                                         YEAR ENDED MAY 31,
                                                     --------------------------
                                                        1997           1996
                                                     -----------    -----------
<S>                                   <C>            <C>            <C>
Net income (loss)...................  As reported    $(4,220,018)   $(3,725,991)
                                      Pro forma       (5,187,253)    (4,262,364)
Earnings (loss) per share...........  As reported          (0.70)         (0.57)
                                      Pro forma            (0.86)         (0.65)
</TABLE>
 
     For purposes of SFAS 123, the fair value of each option grant is estimated
on the date of grant using the Black-Scholes option-pricing model with the
following weighted-average assumptions used for grants in 1997 and 1996
respectively: no expected dividends, expected volatility of and 76.36% and
72.17%, risk-free interest rates of 6.56% and 6.09% for the stock options; and
lives of 7 years. The weighted-average fair value of options granted in 1997 and
1996 was $4.18 and $5.30 respectively.
 
                                      F-13
<PAGE>   152
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
     The stock exercise price of each option is determined by a committee (the
"Committee") of no fewer than two Directors designated by the Board of
Directors, and shall not be less than the fair market value of the stock subject
to the option at the time the option is granted. Each option shall be for such
term of not more than ten years as shall be determined by the Committee at the
date of grant. The Committee shall have full and final authority, in its
absolute discretion, to determine the time or times when each option becomes
exercisable and the duration of the exercise period. The Committee may at its
discretion accelerate the exercisability of any option at any time before
expiration or termination of an option previously granted, extend the terms of
such option, except that an aggregate option period may never exceed ten years.
 
     As of May 31, 1997, the Company had 358,879 options available for grant
under all plans. A summary of the status of the Company's option plans as of May
31, 1997 and 1996, and changes during the years then ended is presented below:
 
<TABLE>
<CAPTION>
                                                    YEAR ENDED              YEAR ENDED
                                                   MAY 31, 1996            MAY 31, 1997
                                               ---------------------   ---------------------
                                                           WEIGHTED                WEIGHTED
                                                           AVGERAGE                AVGERAGE
                                                           EXERCISE                EXERCISE
                                                SHARES       PRICE      SHARES       PRICE
                                               ---------   ---------   ---------   ---------
<S>                                            <C>         <C>         <C>         <C>
Outstanding at beginning of year.............         --        --     1,387,350     $7.53
Conversion at Distribution of options
  previously held............................  1,035,850     $7.85            --        --
Granted......................................    368,000      6.28       615,100      5.49
Exercised....................................    (16,500)     0.48            --        --
Cancelled/Forfeited..........................         --        --      (320,100)     6.10
                                               ---------               ---------
Outstanding at End of year...................  1,387,350      7.53     1,682,350      6.79
                                               =========               =========
Options Exercisable at year-end..............    332,950      7.78       414,950      7.70
                                               =========               =========
</TABLE>
 
     The following table summarizes information about the stock options
outstanding at May 31, 1997:
 
<TABLE>
<CAPTION>
                                              OPTIONS OUTSTANDING
                                      ------------------------------------    OPTIONS EXERCISABLE
                                                     WEIGHTED                ----------------------
                                                      AVERAGE     WEIGHTED                 WEIGHTED
                                        NUMBER       REMAINING    AVERAGE      NUMBER      AVERAGE
              RANGE OF                OUTSTANDING   CONTRACTUAL   EXERCISE   EXERCISABLE   EXERCISE
          EXERCISE PRICES             AT 5/31/97    LIFE (YRS.)    PRICE     AT 5/31/97     PRICE
          ---------------             -----------   -----------   --------   -----------   --------
<S>                                   <C>           <C>           <C>        <C>           <C>
$ 0.19 to  2.00.....................     19,650         7.8        $ 1.87       19,650      $ 1.87
  5.00 to  5.82.....................    529,000         9.5          5.38        7,500        5.25
  6.25 to  6.82.....................    644,200         7.9          6.56      169,550        6.69
  7.02 to  7.60.....................    182,000         8.6          7.44       47,750        7.29
  8.97 to  9.62.....................    273,500         6.9          9.34      153,500        9.34
 11.89 to 16.50.....................     34,000         7.4         11.90       17,000       11.90
</TABLE>
 
     The Company realizes an income tax benefit from the exercise of certain
stock options. These income tax benefits result in a decrease in current income
taxes payable and an increase in capital in excess of par value.
 
     A healthcare services organization with which the Company maintains a joint
development agreement holds a warrant to purchase 100,000 shares of the
Company's common stock at a price of $7.80 per share, exercisable any time
before March, 1999. The value of the warrant is being amortized on a
straight-line basis over its six-year life.
 
     The Company's founder, Richard C. Jelinek, holds 400,000 warrants to
purchase common stock at $8.00 per share. The value of the warrant was recorded
as part of the stock repurchase agreement recorded in the quarter ended February
28, 1997.
 
                                      F-14
<PAGE>   153
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 11. EMPLOYEE BENEFITS
 
     In connection with the Distribution, the Company adopted an employee stock
purchase plan under which the sale of common stock to employees was authorized.
Employees may designate up to the lesser of $10,000 or 10% of their compensation
for the purchase of stock. The purchase price is the lesser of 85% of the fair
market value of the stock on either the date of grant of a one-year purchase
option or the date the purchase option is exercised. During the year ended May
31, 1997 and the period from March 1, 1996 through May 31, 1996, 29,162 and
7,132 shares, respectively, of common stock were issued under the plan for an
aggregate purchase price of $128,423 and $38,352, respectively. Compensation
cost related to the employee stock purchase plan, as determined based on the
fair value method of SFAS 123, would have aggregated $139,000 and $75,000,
respectively, for the years ended May 31, 1997 and 1996 had the Company adopted
this statement. For purposes of SFAS 123, these amounts were estimated using the
Black-Scholes model with the following assumptions for the years ended May 31,
1997 and 1996, respectively: no expected dividends, an expected life of one
year, expected volatility of 130.17% and 158.17% and risk-free interest rates of
5.40% and 5.45%.
 
     The Company has a contributory retirement savings plan ("401(k) Plan")
which covers eligible employees who qualify as to age and length of service.
Participants may contribute 1% - 15% of their salaries, subject to maximum
contribution limitations imposed by the IRS. The expense of the 401(k) Plan,
consisting of discretionary Company contributions, was $134,795, $121,602 and
$101,512 for the years ended May 31, 1997, 1996 and 1995, respectively.
 
NOTE 12. COMMITMENTS
 
     The Company has various lease agreements for real and personal property.
These obligations extend through 2006 and in some cases contain renewal options.
As of May 31, 1997, future minimum lease payments for non-cancelable operating
leases in excess of one year are as follows:
 
<TABLE>
<S>                                <C>
Year Ending May 31,
  1998...........................  $  977,404
  1999...........................   1,017,264
  2000...........................     847,322
  2001...........................     716,538
  2002...........................     677,786
  Thereafter.....................   2,890,522
                                   ----------
                                   $7,126,836
                                   ==========
</TABLE>
 
     Rental expense on all operating leases totaled $828,221, $682,400, and
$664,844, during fiscal 1997, 1996 and 1995, respectively.
 
NOTE 13. RELATED PARTY TRANSACTIONS
 
     As discussed in Note 1, the Company and MCS signed a services agreement.
For the year ended May 31, 1997 and during the fourth quarter of fiscal 1996,
the Company charged MCS $525,000 and $175,000, respectively, for services under
this agreement, reducing general and administrative expense by these amounts.
Due from Managed Care Solutions, Inc. on the Balance Sheet includes this charge
plus amounts owing related to the Distribution. During fiscal 1996 and 1995, the
Company provided MCS cash infusions for operating purposes of $250,000 and
$5,000,000, respectively.
 
     The Company has repurchased Common Stock and Voting Preferred Stock from
its founder, Richard C. Jelinek, and a trust of which he is a beneficiary,
pursuant to a transaction described in Note 5 and Note 8. Mr. Jelinek continues
to serve as a Director.
 
                                      F-15
<PAGE>   154
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 14. CONCENTRATIONS OF CREDIT RISK
 
     The Company's revenues are generated from clients operating in the
healthcare industry, and accordingly, as of May 31, 1997 and 1996, all of the
Company's trade receivables and installment receivables were from entities in
this industry. The Company has no policy requiring collateral for the extension
of trade credit in the ordinary course of business.
 
NOTE 15. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS
 
     SFAS No. 128, "Earnings per Share," issued in February 1997, changes the
method of calculating earnings per share and will be effective for the Company's
financial statements for the year ending May 31, 1998. Earlier application is
not permitted. However, the Company is permitted to disclose pro forma earnings
per share amounts computed using this Statement in periods prior to adoption.
Upon adoption, all prior period earnings per share data presented shall be
restated to conform to this Statement. The calculation of earnings per share
under this Statement is simpler than prior methods and more consistent with
international accounting standards. Given the Company's historical losses,
common stock equivalents were excluded from prior pro forma earnings per share
calculations because they were anti-dilutive. Therefore, adoption of this
Statement is not expected to have a material impact on amounts previously
reported as pro forma net loss per common share.
 
     SFAS No. 130, "Reporting Comprehensive Income," issued in June 1997, will
require the Company to disclose, in financial statement format, all non-owner
changes in equity. Such changes include, for example, cumulative foreign
currency translation adjustments, certain minimum pension liabilities and
unrealized gains and losses on available-for-sale securities. This Statement is
effective for fiscal years beginning after December 15, 1997 and requires
presentation of prior period financial statements for comparability purposes.
The Company expects to adopt this Statement beginning with its financial
statements for the year ending May 31, 1998.
 
     SFAS No. 131, "Disclosures about Segments of an Enterprise and Related
Information," issued in June 1997, establishes standards for reporting
information about operating segments in annual financial statements and interim
financial reports. It also establishes standards for related disclosures about
products and services, geographic areas and major customers. Operating segments
are components of an enterprise about which separate financial information is
available that is evaluated regularly by the chief operating decision maker in
deciding how to allocate resources and in assessing performance. Generally,
financial information is required to be reported on the basis that is used
internally for evaluating segment performance and deciding how to allocate
resources to segments. The Company expects to adopt this Statement in its
financial statements for the year ending May 31, 1998.
 
                                      F-16
<PAGE>   155
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 16. QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
 
     Unaudited quarterly financial information for the years ended May 31, 1997
and 1996 is supplementary and is provided in the following summary:
 
<TABLE>
<CAPTION>
                                                    THREE MONTHS ENDED
                                 ---------------------------------------------------------
                                   MAY 31,      FEBRUARY 28,    NOVEMBER 30,    AUGUST 31,
                                    1997            1997            1996           1996
                                 -----------    ------------    ------------    ----------
<S>                              <C>            <C>             <C>             <C>
Total revenues.................  $ 4,845,868    $ 4,064,276     $ 5,162,777     $4,196,779
Total operating expenses.......    2,075,024      5,259,597       2,121,897      1,378,980
Operating income (loss)........   (1,399,027)    (6,347,410)        109,905        280,667
Net income (loss)..............     (793,571)    (3,930,237)        211,574        292,216
Earnings (loss) per common
  share........................        (0.14)         (0.60)           0.03           0.05
</TABLE>
 
<TABLE>
<CAPTION>
                                                    THREE MONTHS ENDED
                                 ---------------------------------------------------------
                                   MAY 31,      FEBRUARY 29,    NOVEMBER 30,    AUGUST 31,
                                    1996            1996            1995           1995
                                 -----------    ------------    ------------    ----------
<S>                              <C>            <C>             <C>             <C>
Total revenues.................  $ 4,871,723    $ 4,203,719     $ 5,318,504     $5,400,233
Total operating expenses.......    5,664,899      3,278,847       2,612,565      2,559,171
Operating income (loss)........   (5,946,480)    (1,596,314)       (104,481)       202,571
Net income (loss)..............   (3,472,218)      (781,890)        188,090        340,027
Earnings (loss) per common
  share........................        (0.54)            --              --             --
Pro forma earnings (loss) per
  common share.................           --          (0.12)           0.03           0.05
</TABLE>
 
     Results of operations for the quarters ended February 28, 1997, May 31,
1996, and February 29, 1996 include restructuring charges discussed in Note 4
and the stock repurchase discussed in Note 5. Total revenues, total operating
expenses, and operating income for all periods have been restated for the
discontinued operation discussed in Note 3.
 
                                      F-17
<PAGE>   156
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE
 
     None.
 
                                    PART III
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
     The officers of the Company, their ages and their positions with the
Company are provided in the table below. The other information called for by
Item 10 is incorporated by reference to the Registrant's Proxy Statement being
sent to stockholders in connection with the 1997 Annual Meeting of Stockholders
to be held on November 18, 1997 (the "Proxy Statement").
 
<TABLE>
<CAPTION>
         NAME            AGE                      POSITION
         ----            ---                      --------
<S>                      <C>   <C>
Patrick C. Sommers       50    President, Chief Executive Officer and
                               Chairman
Angus J. Carroll         38    Senior Vice President
Marlon T. Gruen          43    Senior Vice President
Robert C. Steffel        44    Senior Vice President
Daniel P. DiCaro         40    Vice President, Chief Financial Officer and
                               Asst. Secretary
Susan K. Doctors         56    Vice President
Lynda D. Hernandez       41    Vice President
Timothy K. Rutledge      39    Vice President
William G. Brown         54    Secretary and Director
</TABLE>
 
     Officers serve at the pleasure of the Board.
 
     PATRICK C. SOMMERS, President, Chief Executive Officer, and Chairman of the
Board of Directors joined the Company in February 1996. From 1992 to 1996, Mr.
Sommers served as President of Ceridian Employer Services, a $400 million
division of Ceridian Corporation (formerly Control Data Corporation). From 1990
to 1992, Mr. Sommers was President of GTE Information Services, a division of
GTE Corporation, and from 1969 to 1990, he served in successive management
positions with Dun & Bradstreet Corporation, culminating with his position as
President of Dun & Bradstreet Information Resources, Inc.
 
     ANGUS J. CARROLL, Senior Vice President, joined the Company in July 1996
and is responsible for strategic planning and business development. From 1993 to
1996, Mr. Carroll served as Vice President of Business Development at Ceridian
Employer Services. From 1990 to 1993, he was Director of Business Planning at
GTE Corporation. From 1979 to 1990, Mr. Carroll held successive management
positions with Dun & Bradstreet Corporation, culminating with the position of
Assistant Vice President of Computer Development. Mr. Carroll received his
M.B.A. from Fairleigh-Dickinson University.
 
     MARLON T. GRUEN, Senior Vice President, joined the company in February 1997
and is responsible for marketing. From 1992 to 1997, Mr. Gruen served as Vice
President of Marketing for Merck-Medco Managed Care, LLC, a division of Merck &
Company. From 1991 to 1992, he was Director of Product Planning at GTE Health
Systems, a division of GTE Corporation. From 1990 to 1991, Mr. Gruen served as
Director of Product Planning at Consumer Health Services, Inc. Prior to that,
from 1977 to 1990, he held successive management positions with Dun & Bradstreet
Corporation, culminating with the position of Assistant Vice President of
Product Planning & Development.
 
     ROBERT C. STEFFEL, Senior Vice President, is responsible for the contract
management and information services businesses. Prior to joining the Company in
December 1991, he was Vice President, Information Systems of Specialty Home
Health Care from 1989 to 1991. He also served as Director of Information Systems
and Management Engineering at Curaflex Home Health Care from 1988 to 1989.
 
     DANIEL P. DICARO, Vice President, Chief Financial Officer and Assistant
Secretary, joined the Company in January 1997. Mr. DiCaro was one of the
founders of Imagination Pilots Entertainment (IPE), a
 
                                      F-18
<PAGE>   157
 
joint venture with Time Warner in consumer multimedia software. Mr. DiCaro
served as the Chief Financial Officer and Chief Operating Officer of IPE from
1994 to 1997. He is currently a director of IPE. From 1990 to 1994, Mr. DiCaro
served as the Chief Financial Officer of a group of privately held, venture
capital backed, software and information service companies. Previously, he was
the Vice President of Finance for CCC Information Services Inc. (1987 to 1990)
and a member of the international accounting firm of Arthur Young and Company
(1984 to 1987). Mr. DiCaro received his M.B.A. from DePaul University and is a
certified public accountant.
 
     SUSAN K. DOCTORS, Vice President, joined the Company in January 1995 and is
responsible for Human Resources and Administration. From 1993 to 1995, she
worked as an independent consultant. Prior to 1993, Ms. Doctors worked 19 years
at Official Airline Guides, Inc. holding successive management positions
culminating with her position as Vice President of Human Resources. Ms. Doctors
received her Masters in Management from the Kellogg Graduate School at
Northwestern University.
 
     LYNDA D. HERNANDEZ, Vice President, is responsible for the operations of
the Clinical Data Systems division. Most recently, Ms. Hernandez served as
Senior Director for operations. From 1990 to 1992, she was manager of Technical
Support, Interfaces and Client Services in the Clinical Data Systems division.
Prior to 1990, Ms. Hernandez served in successive technical and management
positions with the Company.
 
     TIMOTHY K. RUTLEDGE, Vice President, is responsible for the operations of
the Decision Support Systems division. He joined the Company in June 1992
following the acquisition of Innovate Software Solutions, Inc. which he
co-founded in 1989. He held successive management positions with that firm until
its acquisition by Medicus. Previously, he served as a manager for Price
Waterhouse.
 
     WILLIAM G. BROWN is a partner of Bell, Boyd & Lloyd, Chicago, IL, legal
counsel to the Company, and has been Secretary and a Director of the Predecessor
Corporation since its incorporation in December 1984, and of MCS and the Company
since March 1, 1996. Mr. Brown is also a Director of MYR Group, Dovenmuehle
Mortgage and CFC International, Inc.
 
ITEM 11. EXECUTIVE COMPENSATION
 
     The information called for by Item 11 is incorporated by reference to the
information under the caption "Compensation" in the Registrant's Proxy Statement
for the 1997 Annual Meeting of Stockholders to be held on November 18, 1997 (the
"Proxy Statement").
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
     The information called for by Item 12 is incorporated by reference to the
information under the caption "Common Stock Ownership by Management" in the
Proxy Statement.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
     The information called for by Item 13 is incorporated by reference to the
information under the caption "Certain Transactions" in the Proxy Statement.
 
                                      F-19
<PAGE>   158
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Report of Independent Accountants...........................  F-1
Balance Sheets at May 31, 1997 and 1996.....................  F-2
Statements of Operations for the years ended May 31, 1997,
  1996 and 1995.............................................  F-3
Statements of Changes in Stockholders' Equity for the years
  ended May 31, 1997, 1996 and 1995.........................  F-4
Statements of Cash Flows for the years ended May 31, 1997,
  1996 and 1995.............................................  F-5
Notes to Financial Statements...............................  F-6
</TABLE>
 
     All supplemental schedules other than as set forth above are omitted as
inapplicable or because the required information is included in the Financial
Statements or the Notes to Financial Statements.
 
EXHIBITS
 
     A list of Exhibits is set forth in the Exhibit Index, which index precedes
such exhibits and which is incorporated herein by this reference thereto.
Included in the exhibits listed therein are the following exhibits which
constitute management contracts or compensatory plans or arrangements:
 
<TABLE>
<C>      <S>
   (i.)  1989 Stock Option Plan, as amended
  (ii.)  1991 Stock Option Plan
 (iii.)  1993 Stock Option Plan
  (iv.)  1993 Performance Stock Option Plan
   (v.)  Stock Purchase Plan, as amended
  (vi.)  Form of Indemnification Contract between Registrant and each
         officer and director
 (vii.)  Retirement Savings Plan
(viii.)  1994 Stock Option Plan
  (ix.)  1994 Directors' Stock Option Plan
   (x.)  1995 RCM Stock Option Plan
  (xi.)  1996 C.E.O. Stock Option Plan
 (xii.)  1996 C.E.O. Replacement Stock Option Plan
(xiii.)  1996 C.E.O. Special Stock Option Plan
 (xiv.)  1997 Employee Stock Option and Restricted Stock Plan
  (xv.)  Amendment to and Restatement of the 1989, 1991, 1993, 1993
         Performance and 1994 Stock Option Plans
 (xvi.)  Stock Repurchase and Warrant Agreement between the Company
         and Richard C. Jelinek
(xvii.)  Stock Repurchase and Warrant Agreement between the Company
         and the Boston Safe Deposit and Trust Company of California,
         or its successors, as trustee of the Richard C. Jelinek
         Charitable Remainder Unitrust dated August 3, 1993
</TABLE>
 
REPORTS ON FORM 8-K
 
     No reports on Form 8-K were filed during the last quarter of the fiscal
year ended May 31, 1997.
 
                                      F-20
<PAGE>   159
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
         EXHIBIT
         NUMBER                              DESCRIPTION
         -------                             -----------
        <C>          <S>
         2           Distribution Agreement between the Predecessor Corporation
                     and the Registrant (Incorporated by Reference to Exhibit
                     2(b) to the Predecessor Corporation's Report on Form 8-K
                     (Commission File No. 0-19393) dated March 1, 1996, as
                     amended by Form 8-K/A-1 filed on April 30, 1996).
        3(a)         Restated Certificate of Incorporation (incorporated by
                     reference to Exhibit 4(a) to Registration Statement number
                     333-3028).
                 (b) Bylaws (incorporated by reference to Exhibit 3(b) to the
                     Registrant's Registration Statement on Form 10 (Commission
                     File No. 0-27614)).
        10(b)        Agreement between the Registrant and Comshare, Inc.**
                 (c) 1989 Stock Option Plan, as amended**
                 (c)(1) 1991 Stock Option Plan***
                 (c)(2) 1993 Stock Option Plan****
                 (c)(3) 1993 Performance Stock Option Plan****
                 (c)(4) 1994 Stock Option Plan*****
                 (c)(5) 1994 Directors' Stock Option Plan#
                 (c)(6) 1995 RCM Stock Option Plan##
                 (c)(7) 1996 C.E.O. Stock Option Plan##
                 (c)(8) 1996 C.E.O. Replacement Stock Option Plan##
                 (c)(9) 1996 C.E.O. Special Stock Option Plan##
                 (c)(10) 1997 Employee Stock Option and Restricted Stock Plan
                     (Incorporated by Reference to Exhibit D to the Company's
                     Proxy Statement dated February 17, 1997 (Commission File No.
                     0-27614))
                 (c)(11) Amendment to and Restatement of the 1989, 1991, 1993, 1993
                     Performance and 1994 Stock Option Plans (Incorporated by
                     Reference to Exhibit C to the Company's Proxy Statement
                     dated February 17, 1997 (Commission File No. 0-27614))
                 (e)(1) Stock Repurchase and Warrant Agreement between the Company
                     and Richard C. Jelinek (Incorporated by Reference to Exhibit
                     E to the Company's Proxy Statement dated February 17, 1997
                     (Commission File No. 0-27614))
                 (e)(2) Stock Repurchase and Warrant Agreement between the Company
                     and the Bostons Safe Deposit and Trust Company of
                     California, or its successors, as trustee of the Richard C.
                     Jelinek Charitable Remainder Unitrust dated August 3, 1993
                     (Incorporated by Reference to Exhibit E to the Company's
                     Proxy Statement dated February 17, 1997 (Commission File No.
                     0-27614))
                 (f) Stock Purchase Plan, as amended##
                 (g) Form of Indemnification Contract between Registrant and each
                     officer and director**
                 (h) Retirement Savings Plan****
                 (i) Lease of Evanston, IL office##
                 (j) Lease of Alameda, CA office##
                 (k) Lease of Cincinnati, OH office***
</TABLE>
 
                                      F-21
<PAGE>   160
 
<TABLE>
<CAPTION>
         EXHIBIT
         NUMBER                              DESCRIPTION
         -------                             -----------
        <C>          <S>
                 (l) Lease of Chesterfield, MO office##
                 (m) Loan and Security Agreement with Cole Taylor Bank
        23           Consent of Price Waterhouse LLP
</TABLE>
 
- ---------------
     * Indicated only on manually signed original of report.
 
   ** Incorporated by reference to the exhibit with the same designation filed
      as part of Registration Statement No. 33-41253.
 
  *** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1992.
 
 **** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1993.
 
***** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1994.
 
    # Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1995.
 
  ## Incorporated by reference to the exhibit with the same designation filed as
     part of the Annual Report on Form 10-K of the Registrant for the fiscal
     year ended May 31, 1996.
 
                                      F-22
<PAGE>   161
 
                                   SIGNATURES
 
     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
 
                                          MEDICUS SYSTEMS CORPORATION
 
                                          By:    /s/ PATRICK C. SOMMERS
                                            ------------------------------------
                                                     Patrick C. Sommers
                                             Chairman, Chief Executive Officer
                                                       and President
 
Dated: August 28, 1997
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of registrant
and in the capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                      SIGNATURE                                     TITLE                    DATE
                      ---------                                     -----                    ----
<C>                                                    <C>                              <S>
               /s/ PATRICK C. SOMMERS                     Chairman of the Board of      August 28, 1997
- -----------------------------------------------------    Directors, Chief Executive
                 Patrick C. Sommers                         Officer and President
 
                /s/ DANIEL P. DICARO                      Vice President (principal     August 28, 1997
- -----------------------------------------------------     financial and accounting
                  Daniel P. Dicaro                                officer)
 
                /s/ WILLIAM G. BROWN                              Director              August 28, 1997
- -----------------------------------------------------
                  William G. Brown
 
                 /s/ JON E.M. JACOBY                              Director              August 28, 1997
- -----------------------------------------------------
                   Jon E.M. Jacoby
 
               /s/ RICHARD C. JELINEK                             Director              August 28, 1997
- -----------------------------------------------------
                 Richard C. Jelinek
 
                  /s/ JOHN P. KUNZ                                Director              August 28, 1997
- -----------------------------------------------------
                    John P. Kunz
 
               /s/ RISA LAVIZZO-MOUREY                            Director              August 28, 1997
- -----------------------------------------------------
                 Risa Lavizzo-Mourey
 
                 /s/ GAIL L. WARDEN                               Director              August 28, 1997
- -----------------------------------------------------
                   Gail L. Warden
</TABLE>
 
                                      F-23
<PAGE>   162
 
================================================================================
 
                                 UNITED STATES
                         SECURITIES EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                 FORM 10-K/A-1
                            ------------------------
 
[X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
      ACT OF 1934
 
                                       OR
 
[ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934
 
                     FOR THE FISCAL YEAR ENDED MAY 31, 1997
 
                          COMMISSION FILE NO. 0-27614
 
                          MEDICUS SYSTEMS CORPORATION
                             A DELAWARE CORPORATION
 
                                   36-4056769
                        IRS EMPLOYER IDENTIFICATION NO.
 
                         ONE ROTARY CENTER, SUITE 1111
                            EVANSTON, ILLINOIS 60201
                                 (847) 570-7500
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
                                      NONE
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:
                     COMMON STOCK, PAR VALUE $.01 PER SHARE
                                (TITLE OF CLASS)
 
     Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.  Yes [X]  No [ ]
 
     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Registration S-K is not contained herein, and will not be contained, to
the best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K.  [X]
 
     As of August 21, 1997, there were 5,483,207 shares of common stock
outstanding, and the aggregate market value of the common stock (based upon the
August 21, 1997 closing sale price on the Nasdaq National Market) held by
non-affiliates was approximately $23,290,034.
 
================================================================================
<PAGE>   163
 
                          MEDICUS SYSTEMS CORPORATION
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Report of Independent Accountants...........................  F-1
Balance Sheets at May 31, 1997 and 1996.....................  F-2
Statements of Operations for the years ended May 31, 1997,
  1996 and 1995.............................................  F-3
Statements of Changes in Stockholders' Equity for the years
  ended May 31, 1997, 1996 and 1995.........................  F-4
Statements of Cash Flows for the years ended May 31, 1997,
  1996 and 1995.............................................  F-5
Notes to Financial Statements...............................  F-6
</TABLE>
 
     All supplemental schedules other than as set forth above are omitted as
inapplicable or because the required information is included in the Financial
Statements or the Notes to Financial Statements.
 
EXHIBITS
 
     A list of Exhibits is set forth in the Exhibit Index, which index precedes
such exhibits and which is incorporated herein by this reference thereto.
Included in the exhibits listed therein are the following exhibits which
constitute management contracts or compensatory plans or arrangements:
 
<TABLE>
    <C>      <S>
       (i.)  1989 Stock Option Plan, as amended
      (ii.)  1991 Stock Option Plan
     (iii.)  1993 Stock Option Plan
      (iv.)  1993 Performance Stock Option Plan
       (v.)  Stock Purchase Plan, as amended
      (vi.)  Form of Indemnification Contract between Registrant and each
             officer and director
     (vii.)  Retirement Savings Plan
    (viii.)  1994 Stock Option Plan
      (ix.)  1994 Directors' Stock Option Plan
       (x.)  1995 RCM Stock Option Plan
      (xi.)  1996 C.E.O. Stock Option Plan
     (xii.)  1996 C.E.O. Replacement Stock Option Plan
     xiii.)  1996 C.E.O. Special Stock Option Plan
     (xiv.)  1997 Employee Stock Option and Restricted Stock Plan
      (xv.)  Amendment to and Restatement of the 1989, 1991, 1993, 1993
             Performance and 1994 Stock Option Plans
     (xvi.)  Stock Repurchase and Warrant Agreement between the Company
             and Richard C. Jelinek
    (xvii.)  Stock Repurchase and Warrant Agreement between the Company
             and the Boston Safe Deposit and Trust Company of California,
             or its successors, as trustee of the Richard C. Jelinek
             Charitable Remainder Unitrust dated August 3, 1993
</TABLE>
 
REPORTS ON FORM 8-K
 
     No reports on Form 8-K were filed during the last quarter of the fiscal
year ended May 31, 1997.
 
                                       [2]
<PAGE>   164
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
                                                                               SEQUENTIALLY
     EXHIBIT                                                                     NUMBERED
     NUMBER                              DESCRIPTION                              PAGE*
     -------                             -----------                           ------------
    <C>          <S>                                                           <C>
     2           Distribution Agreement between the Predecessor Corporation
                 and the Registrant (Incorporated by Reference to Exhibit
                 2(b) to the Predecessor Corporation's Report on Form 8-K
                 (Commission File No. 0-19393) dated March 1, 1996, as
                 amended by Form 8-K/A-1 filed on April 30, 1996)............
    3(a)         Restated Certificate of Incorporation (incorporated by
                 reference to Exhibit 4(a) to Registration Statement number
                 333-3028)...................................................
             (b) Bylaws (incorporated by reference to Exhibit 3(b) to the
                 Registrant's Registration Statement on Form 10 (Commission
                 File No. 0-27614))..........................................
    10(b)        Agreement between the Registrant and Comshare, Inc.**.......
             (c) 1989 Stock Option Plan, as amended**........................
             (c)(1) 1991 Stock Option Plan***...................................
             (c)(2) 1993 Stock Option Plan****..................................
             (c)(3) 1993 Performance Stock Option Plan****......................
             (c)(4) 1994 Stock Option Plan*****.................................
             (c)(5) 1994 Directors' Stock Option Plan#..........................
             (c)(6) 1995 RCM Stock Option Plan##................................
             (c)(7) 1996 C.E.O. Stock Option Plan##.............................
             (c)(8) 1996 C.E.O. Replacement Stock Option Plan##.................
             (c)(9) 1996 C.E.O. Special Stock Option Plan##.....................
             (c)(10) 1997 Employee Stock Option and Restricted Stock Plan
                 (Incorporated by Reference to Exhibit D to the Company's
                 Proxy Statement dated February 17, 1997 (Commission File No.
                 0-27614))...................................................
             (c)(11) Amendment to and Restatement of the 1989, 1991, 1993, 1993
                 Performance and 1994 Stock Option Plans (Incorporated by
                 Reference to Exhibit C to the Company's Proxy Statement
                 dated February 17, 1997 (Commission File No. 0-27614))......
             (e)(1) Stock Repurchase and Warrant Agreement between the Company
                 and Richard C. Jelinek (Incorporated by Reference to Exhibit
                 E to the Company's Proxy Statement dated February 17, 1997
                 (Commission File No. 0-27614))..............................
             (e)(2) Stock Repurchase and Warrant Agreement between the Company
                 and the Boston Safe Deposit and Trust Company of California,
                 or its successors, as trustee of the Richard C. Jelinek
                 Charitable Remainder Unitrust dated August 3, 1993
                 (Incorporated by Reference to Exhibit E to the Company's
                 Proxy Statement dated February 17, 1997 (Commission File No.
                 0-27614))...................................................
             (f) Stock Purchase Plan, as amended##...........................
             (g) Form of Indemnification Contract between Registrant and each
                 officer and director**......................................
             (h) Retirement Savings Plan****.................................
             (i) Lease of Evanston, IL office##..............................
             (j) Lease of Alameda, CA office##...............................
             (k) Lease of Cincinnati, OH office***...........................
             (l) Lease of Chesterfield, MO office##..........................
</TABLE>
 
                                       [3]
<PAGE>   165
 
<TABLE>
<CAPTION>
                                                                               SEQUENTIALLY
     EXHIBIT                                                                     NUMBERED
     NUMBER                              DESCRIPTION                              PAGE*
     -------                             -----------                           ------------
    <C>          <S>                                                           <C>
             (m) Loan and Security Agreement with Cole Taylor Bank###........
    23           Consent of Price Waterhouse###..............................
    27           Financial Data Schedule.....................................
</TABLE>
 
- ---------------
     * Indicated only on manually signed original of report.
 
   ** Incorporated by reference to the exhibit with the same designation filed
      as part of Registration Statement No. 33-41253.
 
  *** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1992.
 
 **** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1993.
 
***** Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1994.
 
    # Incorporated by reference to the exhibit with the same designation filed
      as part of the Annual Report on Form 10-K of the Predecessor Corporation
      for the fiscal year ended May 31, 1995.
 
  ## Incorporated by reference to the exhibit with the same designation filed as
     part of the Annual Report on Form 10-K of the Registrant for the fiscal
     year ended May 31, 1996.
 
 ### Filed as part of the Annual Report on Form 10-K of the Registrant for the
     fiscal year ended May 31, 1997, as originally filed on August 28, 1997.
 
                                       [4]
<PAGE>   166
 
                                   SIGNATURES
 
     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
 
                                          MEDICUS SYSTEMS CORPORATION
 
                                          By:    /s/ PATRICK C. SOMMERS
                                            ------------------------------------
                                                     Patrick C. Sommers
                                             Chairman, Chief Executive Officer
                                                       and President
Dated: December 10, 1997
 
                                       [5]
<PAGE>   167
 
                                                                         ANNEX E
================================================================================
 
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-Q
                            ------------------------
 
[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934
 
                FOR THE QUARTERLY PERIOD ENDED NOVEMBER 30, 1997
 
                                       OR
 
[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934
 
                         FOR THE TRANSITION PERIOD FROM
                               --------------- TO
                                ---------------
 
                          MEDICUS SYSTEMS CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                            <C>
                   DELAWARE                                      36-4056769
       (STATE OR OTHER JURISDICTION OF              (I.R.S. EMPLOYER IDENTIFICATION NO.)
        INCORPORATION OF ORGANIZATION)
        ONE ROTARY CENTER, SUITE 1111,                         (847) 570-7500
           EVANSTON, ILLINOIS 60201                   (REGISTRANT'S TELEPHONE NUMBER)
   (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
</TABLE>
 
                         COMMISSION FILE NUMBER 0-27614
 
                            ------------------------
 
     Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.
                           [X]  Yes          [ ]  No
 
     There were 5,523,169 shares of common stock outstanding as of January 12,
1998.
 
================================================================================
<PAGE>   168
 
                                     PART I
 
                             FINANCIAL INFORMATION
 
ITEM 1. FINANCIAL STATEMENTS
 
                          MEDICUS SYSTEMS CORPORATION
 
                                 BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                              NOVEMBER 30,      MAY 31,
                                                                  1997           1997
                                                              ------------    -----------
                                                              (UNAUDITED)
<S>                                                           <C>             <C>
Current assets
  Cash and cash equivalents.................................  $   244,217     $ 1,205,135
  Accounts receivable and unbilled services, net of
     allowance for doubtful accounts of $1,290,459 and
     1,713,008..............................................   13,224,602      10,500,676
  Inventories...............................................      181,572         214,264
  Prepaid expenses and other................................      235,616         258,725
  Prepaid and deferred income taxes.........................    1,756,163       2,147,416
  Net assets of discontinued operation......................           --         111,381
                                                              -----------     -----------
                                                               15,642,170      14,437,597
                                                              -----------     -----------
Property and equipment, net of accumulated depreciation of
  $5,578,254 and $5,080,110.................................    1,977,827       2,335,175
Internally developed software, net of accumulated
  amortization of $2,648,322 and $2,110,378.................    2,673,710       3,087,849
Installment accounts receivable due after one year, net of
  unearned interest of $117,309 and $154,647................      431,345         533,488
Deferred income taxes.......................................    3,414,474       2,454,563
                                                              -----------     -----------
                                                              $24,139,526     $22,848,672
                                                              ===========     ===========
                          LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Accounts payable..........................................  $   251,608     $   597,787
  Accrued compensation......................................      554,716         453,035
  Accrued restructuring charge..............................    1,627,616       2,247,416
  Other accrued liabilities.................................    1,475,901       1,138,226
  Deferred revenue..........................................    9,872,854       6,910,599
  Notes payable.............................................    1,000,000       1,000,000
                                                              -----------     -----------
                                                               14,782,695      12,347,063
                                                              -----------     -----------
Notes payable...............................................    1,000,000       1,000,000
                                                              -----------     -----------
Stockholders' equity
  Preferred stock $1,000 par, 500 shares authorized and
     issued.................................................      500,000         500,000
  Common stock $.01 par:
  Authorized -- 10,000,000 shares
  Issued -- 6,492,803 and 6,487,159 shares, respectively....       64,928          64,872
  Capital in excess of par value............................   22,310,767      22,063,715
  Capital in excess of par value -- warrant.................      944,000         944,000
  Less treasury stock:
  Preferred stock, at cost -- 500 shares....................     (500,000)       (500,000)
  Common stock, at cost -- 1,007,002 shares.................   (5,687,418)     (5,687,418)
  Accumulated deficit.......................................   (9,275,446)     (7,883,560)
                                                              -----------     -----------
                                                                8,356,831       9,501,609
                                                              -----------     -----------
                                                              $24,139,526     $22,848,672
                                                              ===========     ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       E-2
<PAGE>   169
 
                          MEDICUS SYSTEMS CORPORATION
 
                            STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                   THREE MONTHS ENDED
                                                              ----------------------------
                                                              NOVEMBER 30,    NOVEMBER 30,
                                                                  1997            1996
                                                              ------------    ------------
<S>                                                           <C>             <C>
Revenues
  Software products and services............................  $ 1,384,083     $ 2,286,033
  Maintenance and support services..........................    2,384,357       2,876,744
                                                              -----------     -----------
                                                                3,768,440       5,162,777
Costs and expenses
  Software products and services............................      528,763         724,747
  Maintenance and support services..........................    1,387,933       1,397,150
                                                              -----------     -----------
                                                                1,916,696       2,121,897
  Marketing, general and administrative.....................    2,662,236       2,232,201
  Research and development..................................      522,375         698,774
                                                              -----------     -----------
                                                                5,101,307       5,052,872
                                                              -----------     -----------
Operating income (loss).....................................   (1,332,867)        109,905
  Interest and other income, net............................        6,023         155,303
                                                              -----------     -----------
Income (Loss) from continuing operations before income
  taxes.....................................................   (1,326,844)        265,208
                                                              -----------     -----------
  Provision for (benefit from) income taxes.................     (510,835)         98,876
                                                              -----------     -----------
Income (Loss) from continuing operations....................     (816,009)        166,332
Discontinued operation, net of taxes........................      (69,068)         45,242
                                                              -----------     -----------
Net income (loss)...........................................  $  (885,077)    $   211,574
                                                              ===========     ===========
Earnings (loss) per common and common equivalent share
  Continuing operations.....................................  $     (0.15)    $      0.02
  Discontinued operation....................................        (0.01)           0.01
                                                              -----------     -----------
                                                              $     (0.16)    $      0.03
                                                              ===========     ===========
Weighted average common and common equivalent shares
  outstanding...............................................    5,500,536       6,496,990
                                                              ===========     ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       E-3
<PAGE>   170
 
                          MEDICUS SYSTEMS CORPORATION
 
                            STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                   SIX MONTHS ENDED
                                                              ---------------------------
                                                              NOVEMBER 30,    NOVEMBER 30
                                                                  1997           1996
                                                              ------------    -----------
<S>                                                           <C>             <C>
Revenues
  Software products and services............................  $ 3,627,943     $ 4,101,769
  Maintenance and support services..........................    4,760,407       5,257,787
                                                              -----------     -----------
                                                                8,388,350       9,359,556
Costs and expenses
  Software products and services............................    1,247,031       1,238,540
  Maintenance and support services..........................    2,515,083       2,262,337
                                                              -----------     -----------
                                                                3,762,114       3,500,877
  Marketing, general and administrative.....................    5,385,899       4,263,893
  Research and development..................................    1,503,434       1,204,214
                                                              -----------     -----------
                                                               10,651,447       8,968,984
                                                              -----------     -----------
Operating income (loss).....................................   (2,263,097)        390,572
  Interest and other income, net............................        8,872         275,397
                                                              -----------     -----------
Income (loss) from continuing operations before income
  taxes.....................................................   (2,254,225)        665,969
  Provision for (benefit from) income taxes.................     (867,876)        258,419
                                                              -----------     -----------
Income(loss)from continuing operations......................   (1,386,349)        407,550
Discontinued operation, net of taxes........................       (5,537)         96,240
                                                              -----------     -----------
Net income (loss)...........................................  $(1,391,886)    $   503,790
                                                              ===========     ===========
Earnings (loss) per common and common equivalent share
  Continuing operations.....................................  $     (0.25)    $      0.06
  Discontinued operation....................................         0.00            0.02
                                                              -----------     -----------
                                                              $     (0.25)    $      0.08
                                                              ===========     ===========
Weighted average common and common equivalent shares
  outstanding...............................................    5,501,233       6,485,121
                                                              ===========     ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       E-4
<PAGE>   171
 
                          MEDICUS SYSTEMS CORPORATION
 
                            STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                   SIX MONTHS ENDED
                                                              ---------------------------
                                                              NOVEMBER 30,    NOVEMBER 30
                                                                  1997           1996
                                                              ------------    -----------
<S>                                                           <C>             <C>
Cash flows from operating activities
  Income (loss) from continuing operations..................  $(1,386,349)    $   407,550
  Adjustments to reconcile to net cash from operating
     activities:
     Depreciation of property and equipment.................      498,144         557,087
     Amortization of internally developed software..........      537,944         151,588
     Deferred income taxes..................................     (468,832)        119,507
     Accrued restructuring charge...........................     (540,153)       (646,281)
     Allowance for doubtful accounts........................      150,000              --
     Changes in certain current assets and current
      liabilities:
       Accounts receivable and unbilled services............   (2,953,573)     (3,032,605)
       Due from Managed Care Solutions, Inc.................           --         515,361
       Inventories..........................................       32,692          15,962
       Prepaid expenses and other current assets............      (76,717)        719,239
       Accounts payable.....................................     (346,179)      1,371,842
       Accrued compensation.................................      101,681      (1,358,114)
       Deferred revenue.....................................    2,962,255        (531,386)
     Other, net.............................................      421,971          91,466
                                                              -----------     -----------
                                                               (1,067,116)     (1,618,784)
                                                              -----------     -----------
Cash flows from investing activities
  Additions to property and equipment.......................     (140,796)       (312,695)
  Additions to internally developed software................     (123,805)       (946,749)
  Proceeds from maturity of short-term investments..........           --       3,594,793
  Proceeds from sale of short-term investments..............           --      58,588,023
  Purchases of short-term investments.......................           --     (59,896,661)
                                                              -----------     -----------
                                                                 (264,601)      1,026,711
                                                              -----------     -----------
Cash flows from financing activities
  Sale of common stock......................................      247,108          79,476
                                                              -----------     -----------
                                                                  247,108          79,476
                                                              -----------     -----------
Net decrease in cash and cash equivalents...................   (1,084,609)       (512,597)
Cash and cash equivalents, beginning of period..............    1,205,135         765,312
Net cash activity from discontinued operation...............      123,691         571,994
                                                              -----------     -----------
Cash and cash equivalents, end of period....................  $   244,217     $   824,709
                                                              ===========     ===========
</TABLE>
 
        The accompanying notes are an integral part of these statements.
                                       E-5
<PAGE>   172
 
                          MEDICUS SYSTEMS CORPORATION
 
                         NOTES TO FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
NOTE 1. BASIS OF PRESENTATION
 
     In management's opinion, the financial statements of Medicus Systems
Corporation (the "Company" or "Medicus") reflect all adjustments (consisting
only of normal recurring adjustments) considered necessary for a fair
presentation of the operating results for the quarters and six months ended
November 30, 1997 and 1996. Certain reclassifications have been made in the
prior period financial statements to conform to the current period presentation.
These reclassifications had no effect on previously reported total assets, total
liabilities, equity or results of operations.
 
     Operating results for the interim periods are not necessarily indicative of
the results to be expected for the full year. The financial information included
herein should be read in conjunction with the financial statements and footnotes
thereto included in the Company's Annual Report on Form 10-K for the year ended
May 31, 1997.
 
     During the quarter and six months ended November 30, 1996, Medicus
performed certain administrative services for Managed Care Solutions, Inc.
("MCS") under a services agreement resulting from the spin off of the Company
from MCS on March 1, 1996. During the quarter and six months ended November 30,
1996, the Company received $175,000 and $350,000, respectively, in consideration
for these services, and reduced marketing, general and administrative expenses
by this amount.
 
NOTE 2. QUADRAMED ACQUISITION
 
     On November 9, 1997, QuadraMed Corporation, a Delaware corporation
("QuadraMed") acquired (the "Acquisition") 56.7% of the outstanding capital
stock of the Company. The Acquisition was completed by means of Stock Purchase
Agreements, dated as of November 9, 1997, with certain stockholders of the
Company (the "Selling Stockholders"). Pursuant to the terms of the Stock
Purchase Agreements, the Selling Stockholders agreed to sell an aggregate of
3,111,105 shares of Medicus Common Stock to QuadraMed. In consideration for the
transfer of these shares to QuadraMed, QuadraMed paid to the Selling
Stockholders $7.50 per share, in cash, without interest, or approximately $23.3
million, together with warrants (the "Warrants") entitling the Selling
Stockholders to acquire 0.3125 shares of QuadraMed Common Stock for each share
of the Medicus Common Stock sold (subject to adjustment in accordance with the
Agreement). The Warrants entitle the Selling Stockholders to purchase QuadraMed
Common Stock at a price of $24.00 per share, on the terms set forth in the
Warrants.
 
     Simultaneously with the execution of the Stock Purchase Agreements,
QuadraMed and the Company entered into an Agreement and Plan of Reorganization
dated as of November 9, 1997 (the "Agreement") pursuant to which a wholly-owned
subsidiary of QuadraMed will be merged, subject to the approval of the
stockholders of QuadraMed, with and into the Company (the "Merger"). At the
effective time of the Merger, the stockholders of the Company participating in
the Merger will exchange all outstanding shares of Medicus Common Stock for any
of (i) a cash payment of $7.50 per share of Medicus Common Stock, (ii) 0.3125
shares of QuadraMed Common Stock per share of Medicus Common Stock sold (subject
to adjustment in accordance with the Agreement), or (iii) a combination of
QuadraMed Common Stock and cash. In addition, all stock options previously
issued by Medicus and outstanding at the time of the Merger will be assumed by
QuadraMed at an exchange ratio of 0.3565 shares of QuadraMed Common Stock for
each share of Medicus Common Stock subject to such options. The Acquisition is
intended to qualify as a tax-free reorganization within the meaning of Section
368(a) of the Internal Revenue Code of 1986 and will be accounted for as a
purchase transaction.
 
     The acquisition is subject to approval of the Company's stockholders at a
Special Meeting of Stockholders. The terms of the acquisition are set forth in
the Agreement filed with the Securities and Exchange Commission by QuadraMed on
November 21, 1997.
 
                                       E-6
<PAGE>   173
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 3. RESTRUCTURING CHARGES
 
     During February, 1996, the Company commenced a process to evaluate its
current strategic position, including the markets it expects to pursue and its
product offerings in those chosen markets. As a result of decisions made as part
of this evaluation process, the Company recorded $4.7 million in restructuring
charges, representing costs and expenses to exit certain product lines, to
abandon certain product development efforts and to provide for liabilities
resulting from the strategic redirection of the Company, including severance
costs. Specifically, the Company decided to exit the Clinical Case Management
Systems ("CCM") and the Executive Information Systems product lines.
Additionally, product development efforts for the Clinical Data Systems Wincoder
V2 project and portions of the MACH 1 project, which will no longer be utilized
in the Medicus product line, were abandoned and their associated development
costs, which had been previously capitalized, were expensed. Severance costs
associated with an officer and several employees, in addition to the write-off
of a portion of the Contract Management System, were also included in the
restructuring charge.
 
     As part of an ongoing evaluation, the Company refined its strategic
planning process during fiscal 1997, and assessed continuing obligations
associated with the implementation of the plan. The Company continued the
process of implementing its plans during 1997 and, following the stock
repurchase from its founder in the quarter ended February 28, 1997, recorded
$2.8 million in charges to complete its plan, including accruing certain costs
to reorganize the Company's business units, to abandon certain development
efforts, and to increase the allowance for doubtful accounts. Specifically, the
Company decided to relocate operations for its Clinical Data Systems ("CDS")
division, based in Alameda, CA, to the Company's Evanston, IL corporate offices.
Costs accrued associated with the relocation included costs to cancel existing
lease agreements, to terminate employees and to write down abandoned assets. In
addition, the Company increased its reserves for product line exit costs and
severance costs that relate to the remaining customer of the previously
discontinued CCM product line. Also, certain product development efforts for the
Company's Patient Focused Systems ("PFS") products were abandoned, and the
associated development costs, which had been previously capitalized, along with
other related product line exit costs were expensed. The Company also increased
its allowance for doubtful accounts due to the potential for certain additional
billed and unbilled accounts to become uncollectible as a result of the
decisions discussed above.
 
     The components of the restructuring reserve, which the Company expects will
be utilized during the next six months, are as follows:
 
<TABLE>
<CAPTION>
                                                     NOVEMBER 30,     MAY 31,
                                                         1997           1997
                                                     ------------    ----------
<S>                                                  <C>             <C>
Product line exit costs............................   $  671,978     $  774,425
Business unit reorganization costs.................      418,550        674,597
Employee termination and severance costs...........      537,088        798,394
                                                      ----------     ----------
                                                      $1,627,616     $2,247,416
                                                      ==========     ==========
</TABLE>
 
     During the quarter ended November 30, 1997, the Company paid $161,436 in
business unit reorganization costs related to the relocation of the CDS division
and $86,857 in severance benefits and employee termination costs. During the six
months ended November 30, 1997, the Company incurred $79,647 in write-downs of
accounts receivable and $22,800 in product line exit costs related to the
remaining customer of the previously discontinued CCM product line. The Company
also paid $256,047 in business unit reorganization costs related to the
relocation of the CDS division and $261,306 in severance benefits and employee
termination costs.
 
NOTE 4. DISCONTINUED OPERATION
 
     Effective May 31, 1997 the Company adopted a plan to discontinue its
contract services line of business. This separate line of business consisted of
information systems management contracts with Bethesda, Inc. As
 
                                       E-7
<PAGE>   174
                          MEDICUS SYSTEMS CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
a result of this decision, the net assets of the contract services line of
business, principally accounts receivable and unbilled services, property and
equipment, and accounts payable and other accrued liabilities have been
reclassified in the Balance Sheets at November 30, 1997 and May 31, 1997. In
addition, the results of operations of the contract services business have been
reclassified in the Statements of Operations for the quarters and six months
ended November 30, 1997 and 1996 and in the Statements of Cash Flows for the six
months ended November 30, 1997 and 1996.
 
     The following table summarizes unaudited selected financial data of the
contract services business for the quarters and six months ended November 30,
1997 and 1996:
 
<TABLE>
<CAPTION>
                                 THREE MONTHS ENDED             SIX MONTHS ENDED
                             ---------------------------   ---------------------------
                             NOVEMBER 30,   NOVEMBER 30,   NOVEMBER 30,   NOVEMBER 30,
                                 1997           1996           1997           1996
                             ------------   ------------   ------------   ------------
<S>                          <C>            <C>            <C>            <C>
Revenues...................   $2,501,000     $2,539,000     $5,002,000     $5,036,000
Operating income (loss)....     (112,000)        73,000         (9,000)       156,000
</TABLE>
 
     In December 1997, following meetings with representatives from both Medicus
and Bethesda, Inc., the contracts to manage the information systems functions
were terminated, effective December 31, 1997. As a result, the Company recorded
$150,000 in related settlement costs for the quarter and six months ended
November 30, 1997.
 
NOTE 5. EARNINGS PER SHARE
 
     Earnings (loss) per common share have been computed by dividing net income
(loss) by the weighted average of common stock and common stock equivalents
outstanding during the period. Common stock equivalents include shares issuable
on the exercise of stock options and the warrant (when dilutive), using the
treasury method from the date of grant. Common stock equivalents are not
included in the calculation of loss per share because they are antidilutive.
 
NOTE 6. NOTE PAYABLE AND LINE OF CREDIT
 
     On December 5, 1996, the Company reached an agreement in principle with its
founder, Richard C. Jelinek, to purchase from Mr. Jelinek, and a trust of which
he is a beneficiary (the "Trust"), one million shares of Medicus Common Stock
and 500 shares of Medicus Voting Preferred Stock. In exchange, the Company
agreed to pay Mr. Jelinek and the Trust $4.5 million in cash and $2.0 million in
8% two-year promissory notes, and issued to Mr. Jelinek and the Trust 400,000
five-year warrants to purchase Medicus Common Stock at $8.00 per share. Interest
costs incurred and paid on the promissory notes totaled $40,040 and $79,705 for
the quarter and six months ended November 30, 1997. In December 1997, the notes
and related interest were redeemed in their entirety by QuadraMed.
 
     In April 1997, the Company entered into an agreement with a bank that
provides for a secured, revolving line of credit up to a maximum of $2.5
million. The credit facility, which has an initial maturity date of October
1998, bears interest at the bank's prime rate and provides the bank with a first
security interest in all assets of the Company. Certain financial covenants and
reporting requirements are also included in the agreement. As of November 30,
1997, the Company had not utilized the line of credit.
 
                                       E-8
<PAGE>   175
 
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS
 
                          MEDICUS SYSTEMS CORPORATION
 
                             RESULTS OF OPERATIONS
 
     This report contains statements that may be considered forward-looking,
such as the discussion of the Company's strategic goals, new products and cash
flows. These statements speak of the Company's plans, goals or expectations,
refer to estimates, or use similar terms. Actual results could differ materially
from the results indicated by these statements because the realization of those
results is subject to many uncertainties.
 
     Some of these uncertainties that may affect future results are discussed in
more detail below under "Management's Discussion and Analysis of Financial
Condition and Results of Operations." All forward-looking statements included in
this document are based upon information presently available, and the Company
assumes no obligation to update any forward-looking statement.
 
     The Company's quarterly operating results historically have varied
depending upon such factors as the timing of significant sales and the timing of
new product introductions. Consequently, the results for any one quarter may not
be indicative of future operating results.
 
     The following table sets forth for the periods indicated (i) the percent of
revenues represented by certain line items in the Company's Statements of
Operations and (ii) the percentage change in each line item from the prior year
period.
 
<TABLE>
<CAPTION>
                                            PERCENT OF REVENUES                          PERCENT OF REVENUES       PERCENTAGE
                                            THREE MONTHS ENDED         PERCENTAGE         SIX MONTHS ENDED          INCREASE
                                        ---------------------------     INCREASE     ---------------------------   (DECREASE)
                                        NOVEMBER 30,   NOVEMBER 30,    (DECREASE)    NOVEMBER 30,   NOVEMBER 30,     1996 TO
                                            1997           1996       1996 TO 1997       1997           1996          1997
                                        ------------   ------------   ------------   ------------   ------------   -----------
<S>                                     <C>            <C>            <C>            <C>            <C>            <C>
Revenues
  Software products and services......       37%            44%           (39)%           43%            44%           (12)%
  Maintenance and support services....       63             56            (17)            57             56             (9)
                                            ---            ---            ---            ---            ---            ---
                                            100            100            (27)           100            100            (10)
                                            ---            ---            ---            ---            ---            ---
Costs and expenses Software products
  and services........................       38             32            (27)            34             30              1
Maintenance and support services......       58             49             (1)            53             43             11
                                            ---            ---            ---            ---            ---            ---
                                             51             41            (10)            45             37              7
Marketing, general and
  administrative......................       70             43             19             64             46             26
  Research and development............       14             14            (25)            18             13             25
                                            ---            ---            ---            ---            ---            ---
                                            135             98              1            127             96             19
                                            ---            ---            ---            ---            ---            ---
Operating income (loss)...............      (35)             2            N/M            (27)             4            N/M
  Interest and other income, net......       --              3            (96)            --              3            (97)
                                            ---            ---            ---            ---            ---            ---
Income (Loss) from continuing
  operations before income taxes......      (35)             5            N/M            (27)             7            N/M
  Provision for (benefit from) income
     taxes............................      (14)             2            N/M            (10)             3            N/M
                                            ---            ---            ---            ---            ---            ---
Income (Loss) from continuing
  operations..........................      (21)             3            N/M            (17)             4            N/M
Discontinued operation, net of
  taxes...............................       (2)             1            N/M             --              1            N/M
                                            ---            ---            ---            ---            ---            ---
Net income (loss).....................      (23)%            4%           N/M            (17)%            5%           N/M
                                            ===            ===            ===            ===            ===            ===
</TABLE>
 
Shown as a percent of related revenues.
 
                                       E-9
<PAGE>   176
                          MEDICUS SYSTEMS CORPORATION
 
                       RESULTS OF OPERATIONS (CONTINUED)
 
     Operating revenues are derived from two sources: (1) license fees and the
related services for licensing the Company's proprietary software products; and
(2) maintenance and support services related to such software products.
 
SOFTWARE PRODUCTS AND SERVICES
 
     Revenues decreased 39% to $1.4 million for the quarter and 12% to $3.6
million for the six months, primarily due to sales force turnover and continued
weakness in the Company's primary markets and product lines. Also contributing
to the decline for the six months were delays in the release of certain Windows
based products from the Clinical Data Systems and Decision Support Systems
divisions. Costs and expenses decreased 27% for the quarter but increased 1% for
the six months, compared to the corresponding prior year period, and as a
percentage of related revenues, increased to 38% from 32% for the quarter and to
34% from 30% for the six months. The decrease for the quarter and six months
resulted primarily from lower personnel and service-related expenses, partially
offset by increased amortization of capitalized software for the newly released
products. In addition, costs and expenses for the six months ended November 30,
1996 included the effect of the Company's decision to reduce its reserve for
continuing obligations on product line exit costs by $200,000, as a result of
favorable negotiations with its customers.
 
MAINTENANCE AND SUPPORT SERVICES
 
     Revenues decreased 17% to $2.4 million for the quarter and 9% to $4.8
million for the six months, primarily due to modest increases associated with
customer migrations being more than offset by discontinued support services on
individual modules from the Company's PFS customers as well as slightly higher
cancellations overall. Costs and expenses for the quarter decreased 1% but
increased 11% for the six months compared to the corresponding prior year
periods, and as a percentage of related revenues, increased to 58% from 49% for
the quarter and to 53% from 43% for the six months. The increase for the six
months is primarily due to additional labor costs incurred to support new
product releases from the Clinical Data Systems and Decision Support Systems
divisions and higher labor costs resulting from shifts to maintenance and
support activities from development activities.
 
MARKETING, GENERAL AND ADMINISTRATIVE
 
     Expenses increased 19% to $2.7 million for the quarter and 26% to $5.4
million for the six months. The increase was primarily due to $162,000 and
$301,000 in costs and expenses, for the quarter and six months, respectively,
related to the move of the Alameda office. Additionally, costs and expenses for
the quarter and six months ended November 30, 1996 include the effect of
$175,000 and $350,000, respectively, in administrative fees the Company received
as a result of the services agreement with MCS. Costs and expenses for the
quarter ended November 30, 1996 also include the effect of the Company's
decision to reduce its reserve for future severance obligations by $100,000, due
to favorable settlements with two of its employees.
 
RESEARCH AND DEVELOPMENT
 
     Actual research and development expenses decreased 52% to $576,000 for the
quarter and 29% to $1,627,000 for the six months. Research and development costs
presented in the accompanying financial statements were $522,000 and $1,503,000
for the quarter and six months, respectively, compared to $699,000 and
$1,204,000 in the corresponding prior year periods. The Company also capitalized
software development costs of $54,000 and $124,000 during the quarter and six
months, respectively, compared to $476,000 and $947,000 in the corresponding
prior year periods, reflecting the release of new products in the quarter ended
August 31, 1997 and the resulting cessation of software cost capitalization.
Actual research and development expenditures were 42% and 45% of software
products and services revenues for the quarter and six months ended November 30,
1997, respectively, compared to 52% and 56% in the corresponding prior year
periods.
 
                                      E-10
<PAGE>   177
                          MEDICUS SYSTEMS CORPORATION
 
                       RESULTS OF OPERATIONS (CONTINUED)
 
     During the first six months of fiscal 1998, the Company's development
efforts were focused on the Decision Support Systems product line and the
Clinical Data Systems product line. During the first six months of fiscal 1997,
the Company was engaged in several development projects, including the Resource
Case Management System, and the Decision Support Systems and Clinical Data
Systems product lines.
 
INTEREST AND OTHER INCOME, NET
 
     Interest and other income, net decreased 96% to $6,000 for the quarter and
97% to $9,000 for the six months, primarily due to lower average cash balances
and interest expense incurred relating to the promissory notes.
 
INCOME TAXES
 
     The Company's effective tax rate was 38.5% for the quarter and six months
ended November 30, 1997, compared to 37.3% and 38.8% in the corresponding prior
periods.
 
FINANCIAL CONDITION
 
     As a result of the Company's commitment to expand its software products and
services, funds are required to support its ongoing product research and
development activities and the infrastructure required to serve its customer
base. Historically, cash generated from its operations has been an important
contributor to these needs. As a result of the market factors adversely
affecting fiscal 1997 results, as well as the stock repurchase transaction, the
Company was required to use a significant portion of its cash reserves. It is
expected that, following the restructuring efforts begun in prior periods, the
Company will return to a situation where cash from operations will provide an
important source of liquidity to support its normal capital needs, although
numerous factors, including any reductions in revenues from currently
anticipated amounts, could affect the amount of such cash available.
 
     At November 30, 1997, the Company had available cash reserves of $244,000.
In addition, the Company had a $2.5 million standby credit facility as well as
funds from QuadraMed available. The Company anticipates cash outlays of
approximately $1.7 million in the next six months, resulting primarily from its
decision to reorganize its business units and to exit certain product lines.
However, cash outlays related to the Company's 8% promissory notes no longer
exist since the notes were redeemed in their entirety by QuadraMed in December,
1997.
 
     While the Company has experienced negative cash flows from operating
activities during the past two fiscal years, management believes that, as a
result of significant reductions in expenses, its cash flows will improve. While
there can be no assurance that this will occur, the Company currently believes
that it will have adequate financial resources available from operations and the
available credit facility and intercompany (QuadraMed) sources to provide
sufficient liquidity to meet its ordinary capital requirements for the
foreseeable future, including cash outlays related to the Company's
restructuring plan.
 
     During its second fiscal quarter, the Company billed its clients in advance
for the next calendar year's maintenance and support services provided on its
software products. This generated an increase in the Company's accounts
receivable and deferred revenue balances, and will increase cash balances in
subsequent months as the related accounts receivable are collected.
 
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS
 
     Statement of Financial Accounting Standards ("SFAS") No. 128, "Earnings per
Share," issued in February 1997, changes the method of calculating earnings per
share and will be effective for the Company's financial statements for the year
ending May 31, 1998. Earlier application is not permitted. However, the Company
is permitted to disclose pro forma earnings per share amounts computed using
SFAS 128 in periods
                                      E-11
<PAGE>   178
                          MEDICUS SYSTEMS CORPORATION
 
                       RESULTS OF OPERATIONS (CONTINUED)
 
prior to adoption. Upon adoption, all prior period earnings per share data
presented shall be restated to conform to SFAS 128. The calculation of earnings
per share under SFAS 128 is simpler than prior methods and more consistent with
international accounting standards. Because a majority of the Company's common
stock equivalents have exercise prices in excess of the Company's Common Stock
price, the Company does not believe that the adoption of SFAS 128 will have a
significant impact on amounts reported as net income (loss) per common share.
 
                                      E-12
<PAGE>   179
 
                                    PART II
 
                               OTHER INFORMATION
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.
 
     The following matters were submitted to a vote of security holders during
the Medicus Systems Corporation Annual Meeting of Stockholders held November 17,
1997:
 
<TABLE>
<CAPTION>
                                                                   VOTES CAST    AUTHORITY
                        DESCRIPTION OF MATTER                         FOR        WITHHELD
                        ---------------------                      ----------    ---------
<S>  <C>                                                           <C>           <C>
1.   Election of Directors:
     William G. Brown............................................  5,157,437      18,877
     Dorsey R. Gardner...........................................  5,157,623      18,691
     Jon E. M. Jacoby............................................  5,157,623      18,691
     Richard C. Jelinek..........................................  5,151,778      24,536
     John P. Kunz................................................  5,157,323      18,991
     Risa Lavizzo-Mourey.........................................  5,157,623      18,691
     Patrick C. Sommers..........................................  5,157,578      18,736
     Gail L. Warden..............................................  5,157,623      18,691
</TABLE>
 
<TABLE>
<CAPTION>
                                                 VOTES CAST   VOTES CAST                  BROKER
                                                    FOR        AGAINST     ABSTENTIONS   NON-VOTES
                                                 ----------   ----------   -----------   ---------
<S>  <C>                                         <C>          <C>          <C>           <C>
2.   Proposal to approve the Company's 1997
     Directors' Stock Option Plan..............  5,102,927      48,794       10,604       13,989
</TABLE>
 
ITEM 5. OTHER INFORMATION.
 
     On November 9, 1997, QuadraMed Corporation, a Delaware corporation
("QuadraMed") acquired (the "Acquisition") 56.7% of the outstanding capital
stock of the Company. The Acquisition was completed by means of Stock Purchase
Agreements, dated as of November 9, 1997, with certain stockholders of the
Company (the "Selling Stockholders"). Pursuant to the terms of the Stock
Purchase Agreements, the Selling Stockholders agreed to sell an aggregate of
3,111,105 shares of Medicus Common Stock to QuadraMed. In consideration for the
transfer of these shares to QuadraMed, QuadraMed paid to the Selling
Stockholders $7.50 per share, in cash, without interest, or approximately $23.3
million, together with warrants (the "Warrants") entitling the Selling
Stockholders to acquire 0.3125 shares of QuadraMed Common Stock for each share
of the Medicus Common Stock sold (subject to adjustment in accordance with the
Agreement). The Warrants entitle the Selling Stockholders to purchase QuadraMed
Common Stock at a price of $24.00 per share, on the terms set forth in the
Warrants.
 
     Simultaneously with the execution of the Stock Purchase Agreements,
QuadraMed and the Company entered into an Agreement and Plan of Reorganization
dated as of November 9, 1997 (the "Agreement") pursuant to which a wholly-owned
subsidiary of QuadraMed will be merged, subject to the approval of the
stockholders of QuadraMed, with and into the Company (the "Merger"). At the
effective time of the Merger, the stockholders of the Company participating in
the Merger will exchange all outstanding shares of Medicus Common Stock for any
of (i) a cash payment of $7.50 per share of Medicus Common Stock, (ii) 0.3125
shares of QuadraMed Common Stock per share of Medicus Common Stock sold (subject
to adjustment in accordance with the Agreement), or (iii) a combination of
QuadraMed Common Stock and cash. In addition, all stock options previously
issued by Medicus and outstanding at the time of the Merger will be assumed by
QuadraMed at an exchange ratio of 0.3565 shares of QuadraMed Common Stock for
each share of Medicus Common Stock subject to such options. The Acquisition is
intended to qualify as a tax-free reorganization within the meaning of Section
368 (a) of the Internal Revenue Code of 1986 and will be accounted for as a
purchase transaction.
 
                                      E-13
<PAGE>   180
 
ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K.
 
        (a) Exhibits
          Exhibit 27 -- Financial Data Schedule
 
        (b) Reports on Form 8-K
 
     The Company filed a report on Form 8-K (dated November 9, 1997) with the
Securities and Exchange Commission on November 10, 1997.
 
                                      E-14
<PAGE>   181
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.
 
                                               MEDICUS SYSTEMS CORPORATION
 
                                          --------------------------------------
                                                       (Registrant)
 
                                                 /s/  PATRICK C. SOMMERS
 
                                          --------------------------------------
                                                    Patrick C. Sommers
                                                        President
                                                (Chief Executive Officer)
                                                  /s/  BERNIE J. MURPHY
 
                                          --------------------------------------
                                                     Bernie J. Murphy
                                                      Vice President
 
                                                (Chief Financial Officer)
January 14, 1998
January 14, 1998
 
                                      E-15
<PAGE>   182
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Section 145(a) of the Delaware General Corporation Law (the "DGCL")
provides in relevant part that "[a] corporation may indemnify any person who was
or is a party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the corporation) by
reason of the fact that he is or was a director, officer, employee or Agent of
the corporation, or is or was serving at the request of the corporation as a
director, officer, employee or Agent of another corporation, partnership, joint
venture, trust or other enterprise against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by him in connection with such action, suit or proceeding if he acted in good
faith and in a manner he reasonably believed to be in or not opposed to the best
interests of the corporation, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe his conduct was unlawful." With
respect to derivative actions, Section 145(b) of the DGCL provides in relevant
part that "[a] corporation may indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action or
suit by or in the right of the corporation to procure a judgment in its favor
[by reason of his service in one of the capacities specified in the preceding
sentence] against expenses (including attorneys' fees) actually and reasonably
incurred by him in connection with the defense or settlement of such action or
suit if he acted in good faith and in a manner he reasonably believed to be in
or not opposed to the best interests of the corporation and except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation
unless and only to the extent that the Court of Chancery or the court in which
such action or suit was brought shall determine upon application that, despite
the adjudication of liability but in view of all the circumstances of the case,
such person is fairly and reasonably entitled to indemnity for such expenses
which the Court of Chancery or such other court shall deem proper."
 
     Article 5 of Medicus' Amended and Restated Bylaws provides that Medicus
shall indemnify each person who is or was a director or executive officer of
Medicus to the full extent permitted by the DGCL. Such Article also provides
that Medicus may, but is not required to, indemnify its employees and agents
(other than directors and officers) to the extent and in the manner permitted by
the DGCL.
 
     QuadraMed has entered into an indemnification agreement with each of its
directors and officers and intends to maintain insurance for the benefit of its
directors and officers insuring such persons against certain liabilities,
including liabilities under the securities laws.
 
     See Item 22 of this Registration Statement regarding the position of the
Securities and Exchange Commission on indemnification for liabilities arising
under the Securities Act.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
     (2) Plan of Acquisition, Reorganization, Arrangement, Liquidation or
Succession.
 
        2.10: Agreement and Plan of Reorganization, dated as of November 9,
        1997, by and among QuadraMed Corporation and Medicus Systems Corporation
        (Incorporated herein by reference from the exhibit with the same number
        attached to QuadraMed's Current Report on Form 8-K, as filed with the
        Commission on November 21, 1997).
 
     (5) Opinion regarding legality.
 
        5.1: Opinion of Brobeck, Phleger & Harrison LLP.*
 
     (23) Consents.
 
   
        23.1: Consent of Arthur Andersen LLP*
    
 
   
        23.2: Consent of Price Waterhouse LLP*
    
 
        23.3: Consent of Brobeck, Phleger & Harrison LLP (included in Exhibit
        5.1)*
 
                                      II-1
<PAGE>   183
 
     (24) Power of Attorney.
 
        24.1: Power of Attorney (included on the signature page hereto).
 
     (99) Additional Exhibits.
 
        99.1 Form of Proxy
 
        99.2 Form of Election
 
        99.3 Consent of Volpe Brown Whelan & Company, LLC*
- ---------------
 
* To be filed by Amendment.
 
ITEM 22. UNDERTAKINGS
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of
QuadraMed pursuant to the foregoing provisions, or otherwise, QuadraMed has been
advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by QuadraMed of expenses incurred or
paid by a director, officer or controlling person of QuadraMed in the successful
defense of any action, suit or proceeding) is asserted by such director, officer
or controlling person in connection with the securities being registered,
QuadraMed will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication
of such issue.
 
     QuadraMed hereby undertakes:
 
          (1) To respond to requests for information that is incorporated by
     reference into the prospectus pursuant to Items 4, 10(b), 11 or 13 of this
     Form, within one business day of receipt of such request, and to send the
     incorporated documents by first class mail or other equally prompt means.
     This includes information contained in documents filed subsequent to the
     effective date of the Registration Statement through the date of responding
     to the request;
 
          (2) To supply by means of a post-effective amendment all information
     concerning a transaction, and the company being acquired involved therein,
     that was not the subject of and included in the registration statement when
     it became effective;
 
          (3) That, for purposes of determining any liability under the
     Securities Act of 1933, each filing of its annual report pursuant to
     section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and,
     where applicable, each filing of an employee benefit plan's annual report
     pursuant to section 15(d) of the Securities Exchange Act of 1934) that is
     incorporated by reference in the registration statement shall be deemed to
     be a new registration statement relating to the securities offered therein,
     and the offering of such securities at that time shall be deemed to be the
     initial bona fide offering thereof;
 
          (4) That prior to any public reoffering of the securities registered
     hereunder through use of a prospectus which is a part of this registration
     statement, by any person or party who is deemed to be an underwriter within
     the meaning of Rule 145(c), the issuer undertakes that such reoffering
     prospectus will contain the information called for by the applicable
     registration form with respect to reofferings by persons who may be deemed
     underwriters, in addition to the information called for by the other Items
     of the applicable form; and
 
          (5) That every prospectus (i) that is filed pursuant to paragraph (4)
     immediately preceding, or (ii) that purports to meet the requirements of
     section 10(a)(3) of the Act and is used in connection with an offering of
     securities subject to Rule 415 will be filed as a part of an amendment to
     the registration statement and will not be used until such amendment is
     effective, and that, for purposes of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new registration statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof.
 
                                      II-2
<PAGE>   184
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER                            EXHIBIT TITLE
- -------                           -------------
<C>        <S>
 23.1      Consent of Arthur Andersen, LLP
 23.2      Consent of Price Waterhouse, LLP
 99.1      Form of Proxy
 99.2      Form of Election
 99.3*     Consent of Volpe Brown Whelan & Company, LLC
</TABLE>
    
 
- ---------------
 
   
* To be filed by amendment.
    
 
                                      II-3
<PAGE>   185
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act, Quadramed Corporation
has duly caused this Amendment No. 1 to Registration Statement No. 333-44767 to
be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Larkspur, State of California, on March 5, 1998.
    
 
                                          QUADRAMED CORPORATION
 
   
                                          By:     /s/ KEITH M. ROBERTS
    
 
                                            ------------------------------------
   
                                                      Keith M. Roberts
    
   
                                                     Vice President and
    
   
                                                      General Counsel
    
   
    
 
                                      II-4

<PAGE>   1
 
                                                                    EXHIBIT 23.1
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     As independent public accountants, we hereby consent to the incorporation
by reference in this Proxy Statement/Prospectus of our reports dated March 5,
1997 included in QuadraMed Corporation's Form 10-K for the year ended December
31, 1996 and to all references to our Firm included in this Proxy Statement/
Prospectus.
 
                                                             ARTHUR ANDERSEN LLP
 
   
[            ], 1998
    
San Jose, California

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in the Prospectus
constituting part of this Registration Statement on Form S-4 of QuadraMed
Corporation of our report dated July 23, 1997 appearing on page F-2 of the
Medicus Systems Corporation Annual Report on Form 10-K for the year ended May
31, 1997. We also consent to the references to us under the headings "Experts'
and "Selected Financial Data" in such Prospectus. However, it should be noted
that Price Waterhouse LLP has not prepared or certified such "Selected Financial
Data."
 
                                          PRICE WATERHOUSE LLP
 
Chicago, Illinois
   
[            ], 1998
    

<PAGE>   1
 
                                                                    EXHIBIT 99.1
 
PROXY                                                                      PROXY
                          MEDICUS SYSTEMS CORPORATION
 
                        SPECIAL MEETING OF STOCKHOLDERS
   
                                [APRIL 16], 1998
    
 
              PROXY SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
   
     The undersigned hereby appoints Patrick C. Sommers and William G. Brown,
and each of them, the attorneys and proxies of the undersigned, each with full
power of substitution, to vote all shares of Common Stock of Medicus Systems
Corporation which the undersigned would be entitled to vote if personally
present at the Special Meeting of Stockholders of Medicus Systems Corporation to
be held at the offices of Brobeck, Phleger & Harrison LLP, Spear Street Tower,
One Market, Conference Room 2852, San Francisco, California 94105, at 10:00 a.m.
on [April 16], 1998, and at any adjournments or postponements thereof, as
indicated herein.
    
 
   
     THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS DIRECTED HEREIN, BUT
IF NO DIRECTION IS GIVEN, THE SHARES WILL BE VOTED FOR THE PROPOSAL SET FORTH IN
ITEM 1 HEREOF AND OTHER MATTERS PROPERLY PRESENTED BEFORE THE STOCKHOLDERS AT
THE SPECIAL MEETING. THIS PROXY CAN BE REVOKED AT ANY TIME BEFORE IT IS VOTED,
EITHER IN PERSON AT THE SPECIAL MEETING, BY WRITTEN NOTICE TO THE SECRETARY OF
THE COMPANY, OR BY DELIVERY OF A LATER-DATED PROXY.
    
 
        PLEASE MARK THIS PROXY AND SIGN AND DATE IT ON THE REVERSE SIDE
                     AND RETURN IT IN THE ENCLOSED ENVELOPE
 
                 (Continued and to be signed on reverse side.)
 
PLEASE MARK VOTE BY CHECKING BOX, USING DARK INK ONLY:
 
1. Adoption and approval of that certain Agreement and Plan of Reorganization,
   dated as of November 9, 1997, by and among QuadraMed Corporation and Medicus
   Systems Corporation and the transactions contemplated thereby.
 
                   FOR [ ]      AGAINST [ ]      ABSTAIN [ ]
 
2. In their discretion, proxies are authorized to transact and vote upon such
   other business as may properly come before the meeting or any adjournments or
   postponements thereof.
 
THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE PROPOSAL SET FORTH ABOVE. IF NO
INSTRUCTION TO THE CONTRARY IS INDICATED, THIS PROXY WILL BE VOTED FOR ITEM 1.
 
Dated
 
                                          --------------------------------------
 
                                          --------------------------------------
                                                       Signature(s)
 
     Please sign exactly as your name (or names) appears herein. Executors,
administrators, trustees and others signing in representative capacity should
indicate the capacity in which they sign. Where there is more than one owner,
each should sign.

<PAGE>   1
 
   
                                                                    EXHIBIT 99.2
    
 
   
                          MEDICUS SYSTEMS CORPORATION
    
 
                   FORM OF ELECTION AND LETTER OF TRANSMITTAL
 
   
     THIS FORM OF ELECTION AND LETTER OF TRANSMITTAL ("FORM OF ELECTION") IS TO
ACCOMPANY CERTIFICATES REPRESENTING SHARES OF MEDICUS SYSTEMS CORPORATION
("MEDICUS") COMMON STOCK PAR VALUE $.01 PER SHARE (THE "SHARES" OR "MEDICUS
COMMON STOCK"), WHEN SUBMITTED PURSUANT TO AN ELECTION TO RECEIVE (I) $7.50 IN
CASH PER SHARE OR (II) 0.3125 SHARES OF QUADRAMED CORPORATION ("QUADRAMED")
COMMON STOCK, PAR VALUE $.01 PER SHARE ("QUADRAMED COMMON STOCK") PER SHARE,
SUBJECT TO ADJUSTMENT AND CERTAIN LIMITATIONS AS PROVIDED IN THE MERGER
AGREEMENT (AS DEFINED BELOW) OR A COMBINATION OF CASH AND QUADRAMED COMMON
STOCK.
    
 
   
                             The Exchange Agent is:
    
   
                      State Street Bank and Trust Company
    
                 Exchange Agent Address & Mailing Instructions
 
   
<TABLE>
<S>                                <C>                                <C>
By Mail via the enclosed envelope:  By Overnight Courier or Express                By Hand:
                                                 Mail:
      State Street Bank and              State Street Bank and        Securities Transfer and Reporting
          Trust Company                      Trust Company                  Services, Inc. (STARS)
     Corporate Reorganization           Corporate Reorganization           Corporate Reorganization
       Post Office Box 9061               70 Campanelli Drive            1 Exchange Plaza/55 Broadway
 Boston, Massachusetts 02205-8686    Braintree, Massachusetts 02184               3rd Floor
                                             1-800-426-5533                New York, New York 10006
</TABLE>
    
 
   
     THIS FORM OF ELECTION, TOGETHER WITH ALL OTHER REQUIRED DOCUMENTS, SHOULD
BE RETURNED TO THE EXCHANGE AGENT IN THE ACCOMPANYING GREEN ENVELOPE. DELIVERY
OF THIS FORM OF ELECTION TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE WILL NOT
CONSTITUTE A VALID DELIVERY. YOU MUST SIGN THIS FORM OF ELECTION WHERE INDICATED
BELOW AND COMPLETE THE SUBSTITUTE FORM W-9 PROVIDED BELOW. THIS FORM OF ELECTION
AND ALL REQUIRED DOCUMENTS MUST BE RECEIVED BY THE EXCHANGE AGENT NO LATER THAN
5:00 P.M., NEW YORK CITY TIME, ON [APRIL 15], 1998.
    
 
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                        <C>                      <C>
                                           DESCRIPTION OF MEDICUS SHARES
                                    (Attach separate signed list if necessary)
- -------------------------------------------------------------------------------------------------------------------
                 NAME(S) AND ADDRESS(ES)                                                   NUMBER OF SHARES
                 OF REGISTERED HOLDER(S)                    CERTIFICATE NUMBER(S)     EVIDENCED BY CERTIFICATE(S)
- -------------------------------------------------------------------------------------------------------------------
 
                                                           ------------------------------------------------------
 
                                                           ------------------------------------------------------
 
                                                           ------------------------------------------------------
 
                                                           ------------------------------------------------------
 
                                                           ------------------------------------------------------
 
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
 
        PLEASE READ THE INSTRUCTIONS SET FORTH IN THIS FORM OF ELECTION
                      CAREFULLY BEFORE MAKING ANY ELECTION
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                        <C>                      <C>
                                   TYPE OF ELECTION (SEE INSTRUCTIONS B1 AND B2)
- -------------------------------------------------------------------------------------------------------------------
                                                                CASH ELECTION
              TOTAL NUMBER OF MEDICUS SHARES                  (NUMBER OF MEDICUS            STOCK ELECTION
     WITH RESPECT TO WHICH AN ELECTION IS BEING MADE               SHARES)            (NUMBER OF MEDICUS SHARES)
- -------------------------------------------------------------------------------------------------------------------
 
- -------------------------------------------------------------------------------------------------------------------
</TABLE>
 
     If you wish make a Cash Election (as defined below) or a Stock Election (as
defined below), you must so indicate in the box immediately above. If you make
no election in the box, you will be treated as described in Instruction B below.
 
   
     The Medicus Common Stock is being exchanged pursuant to the terms of an
Agreement and Plan of Reorganization, dated as of November 9, 1997 (the "Merger
Agreement"), by and among QuadraMed and Medicus, pursuant to which a wholly
owned subsidiary of QuadraMed will be merged with and into Medicus (the
"Merger"), and each share of Medicus Common Stock issued and outstanding at the
effective time of the Merger will be converted into the right to
    
<PAGE>   2
 
   
receive any of (i) a cash payment of $7.50 per share of Medicus Common Stock (a
"Cash Election"), (ii) 0.3125 shares of Common Stock, par value $.01 per share,
of QuadraMed (the "QuadraMed Common Stock") for each share of Medicus Common
Stock (a "Stock Election"), subject to adjustment and certain limitations as
provided in the following paragraph (the "Exchange Ratio"), or (iii) a
combination of cash and QuadraMed Common Stock. All of the foregoing may be
referred to herein as the "Merger Consideration."
    
 
   
     The Exchange Ratio is subject to the following adjustments: (1) if the
QuadraMed Stock Value exceeds $27.60, then the Exchange Ratio shall be the
quotient obtained by dividing (A) $8.625 by (B) the QuadraMed Stock Value, and
(2) if the QuadraMed Stock Value is less than $24.00, then the Exchange Ratio
shall be the quotient obtained by dividing (A) $7.50 by (B) the QuadraMed Stock
Value. Additionally, if the QuadraMed Stock Value is less than $20.40, then
QuadraMed may elect, at its sole discretion, to cause all or any portion of the
shares of Medicus Common Stock to be converted into the Per Share Cash Amount
(the "QuadraMed Cash Election"). The "QuadraMed Stock Value" is equal to the
average of the closing prices of QuadraMed Common Stock during the fifteen (15)
days prior to the second day prior to the date of the Special Meeting. If the
QuadraMed Stock Value is less than $20.40, then QuadraMed may, at its sole
discretion, elect to have all or any portion of the shares of Medicus Common
Stock converted into cash (the "QuadraMed Cash Election"). QuadraMed will issue
no more than 1,800,000 shares of QuadraMed Common Stock pursuant to the Merger
and pursuant to the exercise of warrants held by certain former stockholders of
Medicus, which shares are subject to pro rata allocation in the event stock
elections by Medicus stockholders and warrant exercises exceed the share
limitation.
    
 
   
     The following table illustrates the Exchange Ratio in the Merger at various
QuadraMed Stock Values:
    
 
   
<TABLE>
<CAPTION>
QUADRAMED STOCK VALUE   EXCHANGE RATIO
- ---------------------   --------------
<S>                     <C>
       $15.00               .5000
       $20.00               .3750
       $20.40               .3676
       $24.00               .3125
       $27.60               .3125
       $30.00               .2875
       $35.00               .2464
</TABLE>
    
 
   
     As a further example, if the Special Meeting were held on March 4, 1998,
the QuadraMed Stock Value (calculated based on the 15 trading days commencing
February 6, 1998 and ending February 27, 1998) would have been $28.027,
resulting in an Exchange Ratio of .3077.
    
 
     Consummation of the Merger is subject to various conditions, including the
affirmative vote of holders of a majority of the outstanding shares of Medicus
Common Stock entitled to vote at the Special Meeting.
 
     NONE OF QUADRAMED, MEDICUS, THE MEDICUS BOARD OF DIRECTORS OR THE QUADRAMED
BOARD OF DIRECTORS OR TRUSTEES MAKES ANY RECOMMENDATION AS TO WHETHER
STOCKHOLDERS OF MEDICUS SHOULD ELECT TO RECEIVE CASH OR SHARES. EACH MEDICUS
STOCKHOLDER MUST MAKE HIS OR HER OWN DECISION WITH RESPECT TO SUCH ELECTION.
 
     THE UNDERSIGNED UNDERSTANDS AND AGREES THAT THE ACCEPTANCE AND DELIVERY OF
ANY FORMS OF ELECTION BY OR TO THE EXCHANGE AGENT (OR ANY OTHER AUTHORIZED
PERSON) WILL NOT OF ITSELF CREATE ANY RIGHT TO RECEIVE CASH OR QUADRAMED SHARES.
 
                                        2
<PAGE>   3
 
Ladies and Gentlemen:
 
     The undersigned hereby surrenders the Certificates evidencing Shares listed
above, and elects to have such Shares converted, upon consummation of the
Merger, into the right to receive cash and/or shares of QuadraMed Common Stock,
or, if the undersigned has made no Election, to have such Shares converted, upon
consummation of the Merger, into the right to receive an allocation of cash
and/or QuadraMed Common Stock as described in Instruction B2. The undersigned
understands that the purpose of the election procedure is to permit the holders
of Shares to express their preference for the type of Consideration they wish to
receive in the Merger, subject to the limitations described herein, but does not
guarantee receipt by holders of their preferred form of Merger Consideration.
 
     The undersigned authorizes and instructs BankBoston, as Exchange Agent, to
deliver the Shares listed above and to receive on behalf of the undersigned, in
exchange for the Shares represented thereby, any check for the cash and/or any
certificates for the shares of QuadraMed Common Stock issuable in the Merger to
be forwarded to the undersigned.
 
     The undersigned understands and acknowledges that all questions as to the
validity, form and eligibility of any Election and delivery and/or surrender of
Certificates and Shares hereunder shall be reasonably determined by QuadraMed
(which may delegate power in whole or in part to the Exchange Agent), and such
determination shall be final and binding. No authority herein conferred or
agreed to be conferred shall be affected by, and all such authority shall
survive, the death or incapacity of the undersigned. All obligations of the
undersigned hereunder shall be binding upon the heirs, personal representatives,
successors and assigns of the undersigned.
 
   
     Unless otherwise indicated in the box entitled "Special Payment
Instructions," the Exchange Agent will issue any check and register any
certificate for shares of QuadraMed Common Stock in the name of the registered
holder(s) of the Shares appearing above under "Description of Shares."
Similarly, unless otherwise indicated in the box entitled "Special Delivery
Instructions," the Exchange Agent will mail any check and any certificate for
shares of QuadraMed Common Stock to the registered holder(s) of the Shares at
the address(es) of the registered holder(s) appearing above under "Description
of Shares." In the event that the boxes entitled "Special Payment Instructions"
and "Special Delivery Instructions" are both completed, the Exchange Agent will
issue any check and any certificate for shares of QuadraMed Common Stock in the
name(s) of, and mail such check and such certificate to, the person(s) so
indicated.
    
 
                                        3
<PAGE>   4
 
                                   IMPORTANT:
   
                      ALL MEDICUS STOCKHOLDERS SUBMITTING
    
                      THIS FORM OF ELECTION MUST SIGN HERE
 
   
     The undersigned hereby represents and warrants that the undersigned has
full power and authority to complete and deliver this Form of Election and to
surrender the Certificate(s) surrendered herewith, free and clear of any liens,
claims, charges or encumbrances whatsoever. The undersigned, upon request, shall
execute and deliver all additional documents deemed by the Exchange Agent or
QuadraMed to be necessary or desirable to complete the sale, assignment,
transfer, cancellation and retirement of the Shares delivered herewith.
    
 
SIGN HERE:
 
- ------------------------------------------------------------
 
- ------------------------------------------------------------
                          (SIGNATURE(S) OF HOLDER(S))
 
Name(s):
 
- ------------------------------------------------------------
 
- ------------------------------------------------------------
                                 (PLEASE PRINT)
 
- ------------------------------------------------------------
                        (AREA CODE AND TELEPHONE NUMBER)
 
Dated:
- ----------------------------------------------------
 
Must be signed by registered holder(s) exactly as name(s) appear(s) on stock
certificate(s) or by person(s) authorized to become registered holder(s) by
certificates and documents transmitted herewith. If signature is by attorney or
guardian or other acting in fiduciary capacity, set forth full title and see
Instruction A2.
 
                              SIGNATURE GUARANTEE
                         (COMPLETE ONLY IF REQUIRED --
                          SEE INSTRUCTIONS A2 AND A3)
 
Note:  A notarization by a notary public is not acceptable.
 
                              FOR USE BY ELIGIBLE
                               INSTITUTIONS ONLY
 
                          PLACE MEDALLION GUARANTEE IN
                                  SPACE BELOW
 
                          SPECIAL PAYMENT INSTRUCTIONS
                          (SEE INSTRUCTIONS A3 AND C2)
 
  To be completed ONLY if the check is to be made payable to, or the
certificates for shares of QuadraMed Common Stock are to be registered in the
name of, someone other than the person(s) signing this page.
 
Name
                                 (PLEASE PRINT)
 
Address
 
- ------------------------------------------------------------
(CITY)                                (STATE)                         (ZIP CODE)
 
- ------------------------------------------------------------
              (SOCIAL SECURITY OR EMPLOYER IDENTIFICATION NUMBER)
 
                         SPECIAL DELIVERY INSTRUCTIONS
                          (SEE INSTRUCTIONS A3 AND C2)
 
  To be completed ONLY if the check or the certificates for shares of QuadraMed
Common Stock are to be mailed to someone other than the person(s) signing this
page or to the person(s) signing this page at an address other than that shown
under "Description of Medicus Shares."
 
Mail checks and/or certificate to:
 
Name
                                 (PLEASE PRINT)
 
Address
 
- ------------------------------------------------------------
(CITY)                                (STATE)                         (ZIP CODE)
 
                                        4
<PAGE>   5
 
     In order to ensure compliance with federal income tax requirements, each
holder of Shares is requested to provide the Exchange Agent with his or her
correct TIN and to certify whether he or she is subject to backup federal income
tax withholding by completing and signing the Substitute Form W-9 below. (See
Instruction C and accompanying Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9).
 
   
<TABLE>
<S>                            <C>                                                    <C>
- ---------------------------------------------------------------------------------------------------------------------------
PAYER: BANKBOSTON, N.A.
- ---------------------------------------------------------------------------------------------------------------------------
 SUBSTITUTE                     Part I: PLEASE PROVIDE YOUR TIN IN THE BOX AT RIGHT   -------------------------------
                                AND CERTIFY BY SIGNING AND DATING BELOW               Social Security Number(s)
                                                                                      OR
                                                                                      Employer Identification Number
                                                                                      (If awaiting TIN, write "Applied For"
                                                                                      and check the box in Part III)
                               ------------------------------------------------------------------------------------------
                                Part II: For Payees Exempt From Backup Withholding, see the enclosed Guidelines and
                                complete as instructed therein.
 
                                Certification. Under penalties of perjury, I certify that:
                                (i) The number shown on this form is my correct Taxpayer Identification Number (or a
                                Taxpayer Identification Number has not been issued to me and either (a) I have mailed or
FORM W-9                            delivered an application to receive a Taxpayer Identification Number to the appropriate
                                    Internal Revenue Service ("IRS") or Social Security Administration office or (b) I
   DEPARTMENT OF THE TREASURY       intend to mail or deliver an application in the near future. I understand that if I do
   INTERNAL REVENUE SERVICE         not provide a Taxpayer Identification Number within sixty (60) days, 31% of all
                                    reportable payments made to note thereafter will be withheld until I provide a number),
   PAYER'S REQUEST FOR              and
     TAXPAYER                   (2) I am not subject to backup withholding either because I have not been notified by the
   IDENTIFICATION NUMBER        Internal Revenue Service (IRS) that I am subject to backup withholding, as a result of
     ("TIN")                        failure to report all interest or dividends, or the IRS has notified me that I am no
                                    longer subject to backup withholding.
                                CERTIFICATION INSTRUCTIONS. You must cross out item (2) above if you have been notified by
                                the IRS that you are subject to backup withholding because of underreported interest or
                                dividends on your tax return. However, if after being notified by the IRS that you were
                                subject to backup withholding you received another notification from the IRS that you are
                                no longer subject to backup withholding, do not cross out item (2). (Also see instructions
                                in the enclosed Guidelines.)
                               ------------------------------------------------------------------------------------------
    
   
 
                                Signature ------------------------- Date              Part III: Awaiting TIN  [ ]
                                --------------
- ---------------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
   
NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
      OF 31% OF ANY CASH PAYMENTS MADE TO YOU PURSUANT TO THE COMBINATION.
      PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER
      IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
    
 
                                        5
<PAGE>   6
 
                                  INSTRUCTIONS
 
A. FORM OF ELECTION
 
     1. Delivery of Form of Election and Certificates. This Form of Election
must be used if Certificates are to be forwarded herewith. All documents
required by this Form of Election must be received by the Exchange Agent at its
address set forth above prior to the Election Deadline. Such documents include
Certificates evidencing all delivered Shares, together with a properly completed
and duly executed Form of Election with any required signature guarantees. If
Certificates are forwarded to the Exchange Agent in multiple deliveries, a
properly completed and duly executed Form of Election must accompany each such
delivery.
 
     Holders of Shares who are nominees only may submit a separate Form of
Election for each beneficial owner for whom such holder is a nominee; provided,
however, that at the request of the Exchange Agent, such holder shall certify to
the satisfaction of the Exchange Agent that such person holds such Shares as
nominee for the beneficial owner thereof. Each beneficial owner for whom a Form
of Election is submitted will be treated as a separate holder of Shares.
 
     Holders of Shares whose Forms of Election and all required documents are
not received prior to the Election Deadline will be treated as having not made
an Election and will be allocated cash and/or shares of QuadraMed Common Stock
in the manner described in Instruction B2.
 
   
     THE METHOD OF DELIVERY OF THIS FORM OF ELECTION, CERTIFICATES AND ALL OTHER
REQUIRED DOCUMENTS IS AT THE OPTION AND RISK OF THE STOCKHOLDER, AND THE
DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE AGENT
AT ITS ADDRESS SET FORTH ABOVE PRIOR TO THE ELECTION DEADLINE. THE RISK OR LOSS
OF SUCH CERTIFICATE(S) FOR SHARES WILL PASS ONLY AFTER THE EXCHANGE AGENT HAS
ACTUALLY RECEIVED THE CERTIFICATE(S) FOR SHARES. IF DELIVERY IS BY MAIL,
REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS RECOMMENDED.
IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.
    
 
     2. Signatures on Form of Election; Stock Powers and Endorsements. If this
Form of Election is signed by the registered holder(s) of the Shares delivered
herewith, the signature(s) must correspond with the name(s) as written on the
face of the Certificates evidencing such Shares without alteration, enlargement
or any other change whatsoever.
 
     If any Share delivered herewith is owned of record by two or more persons,
all such persons must sign this Form of Election. If any of the Shares delivered
herewith are registered in the names of different holders, it will be necessary
to complete, sign and submit as many separate Forms of Election as there are
different registrations of such Shares.
 
     If this Form of Election is signed by the registered holder(s) of the
Shares delivered herewith, no endorsements of Certificates or separate stock
powers are required, unless checks or certificates evidencing shares of
QuadraMed Common Stock are to be payable to the order of, or registered in the
name of, a person other than the registered holder(s), in which case the
Certificate(s) evidencing the Shares delivered herewith must be endorsed or
accompanied by appropriate stock powers, in either case signed exactly as the
name(s) of the registered holder(s) appear(s) on such Certificate(s). Signatures
on such Certificate(s) and stock powers must be guaranteed by an Eligible
Institution (as defined below).
 
     If this Form of Election is signed by a person other than the registered
holder(s) of the Shares delivered herewith, the Certificate(s) evidencing the
Shares delivered herewith must be endorsed or accompanied by appropriate stock
powers, in either case signed exactly as the name(s) of the registered holder(s)
appear(s) on such Certificate(s). The Signature on such Certificate(s) and stock
powers must be guaranteed by an Eligible Institution.
 
     If this Form of Election or any Certificate or stock power is signed by a
trustee, executor, administrator, guardian, attorney-in-fact, officer of a
corporation or other person acting in a fiduciary or representative capacity,
such person should so indicate when signing, and proper evidence satisfactory to
QuadraMed of such person's authority to so act must be submitted.
 
     3. Guarantee of Signatures. Except as otherwise provided below, all
signatures on this Form of Election must be guaranteed by a firm which is a
bank, broker, dealer, credit union, savings association or other entity that is
a member in good standing of the Securities Transfer Agent's Medallion Program
(each, an "Eligible Institution"). No signature guarantee is required on this
Form of Election if this Form of Election is signed by the registered holder(s)
of Shares delivered herewith, unless such holder(s) has completed either the box
entitled "Special Payment Instructions' or the box entitled "Special Delivery
Instructions" below. If a Certificate is registered in the name of a person
other than the signer
 
                                        6
<PAGE>   7
 
of this Form of Election, or if checks or certificates are to be payable to the
order of or registered in the name of a person other than the registered
holder(s), then the Certificate must be endorsed or accompanied by appropriate
stock powers, in either case signed exactly as the name(s) of the registered
holder(s) appear(s) on the Certificate, with the signature(s) on such
Certificate or stock powers guaranteed as described above.
 
   
     4. Determination of Proper Election. QuadraMed will have discretion, which
it may delegate in whole or in part to the Exchange Agent, to reasonably
determine whether Forms of Election have been properly completed, signed and
submitted, modified or revoked, and to disregard immaterial defects in Forms of
Election. The decision of QuadraMed (or the Exchange Agent) in such matters
shall be conclusive and binding. Neither QuadraMed nor the Exchange Agent will
be under any obligation to notify any person of any defect in a Form of Election
submitted to the Exchange Agent. The Exchange Agent shall also make all
computations contemplated by the Merger Agreements and all such computations
shall be conclusive and binding on the holders of Medicus Common Stock. No
alternative, conditional or contingent Elections will be accepted. If QuadraMed
or the Exchange Agent shall reasonably determine that any purported Cash
Election or Stock Election was not properly made, such purported Cash Election
or Stock Election shall be deemed to be of no force and effect and the
stockholder making such purported Cash Election or Stock Election shall, for
purposes hereof, be deemed to have not made an Election, with the result that
the Shares as to which such purported Cash Election or Stock Election was made
shall be designated "Non-Election Shares." Non-Election Shares shall be
converted into the right to receive shares of QuadraMed Common Stock at the
Effective Time of the Merger (subject to QuadraMed's right to make the QuadraMed
Cash Election and QuadraMed's obligation to issue no more than 1,800,000 shares
of QuadraMed Common Stock in the Merger. The shares of Medicus Common Stock for
which cash is elected are referred to herein as "Cash Election Shares" and
shares of Medicus Common Stock for which QuadraMed Common Stock is elected are
referred to herein as "Stock Election Shares." TO BE EFFECTIVE, A PROPERLY
COMPLETED FORM OF ELECTION MUST BE SUBMITTED TO, AND RECEIVED BY, THE EXCHANGE
AGENT NO LATER THAN 5:00 P.M., NEW YORK CITY TIME, ON [APRIL 15,] 1998 (THE
"ELECTION DEADLINE").
    
 
     5. Inadequate Space. If the space provided herein under "Description of
Shares" is inadequate, the Certificate numbers, the number of Shares evidenced
by such Certificates and the number of Shares with respect to which Elections
are made should be listed on a separate schedule, signed and attached hereto.
 
     6. Dissenters' Rights. Holders of Medicus Common Stock who have demanded
dissenters' rights and who desire to seek appraisal of their Shares should not
complete this Form of Election. For more information, see the discussion in the
Proxy Statement/Prospectus set forth under "SPECIAL FACTORS -- Appraisal
Rights."
 
B. ELECTION AND ALLOCATION PROCEDURES
 
     1. Elections. By completing the box entitled "Type of Election" and this
Form of Election in accordance with the instructions hereto, a holder of Shares
will be permitted to make a Cash Election or a Stock Election with respect to
each of the Shares held by such holder. The shares of Medicus Common Stock for
which cash is elected are referred to herein as "Cash Election Shares" and
shares of Medicus Common Stock for which QuadraMed Common Stock is elected are
referred to herein as "Stock Election Shares." A holder of Shares is also
permitted to make a mixed election of cash and QuadraMed Common Stock for the
holders' Medicus Common Stock. The shares of Medicus Common Stock for which no
Election is made are referred to herein as "Non-Election Shares." To be
effective, a properly completed Form of Election must be submitted to, and
received by, the Exchange Agent on or before the Election Deadline.
 
     If a stockholder either (i) does not submit a properly completed Form of
Election in a timely fashion, or (ii) revokes the Form of Election prior to the
Election Deadline, the Shares of Medicus Common Stock held by such stockholder
will be designated "Non-Election Shares." The Exchange Agent has reasonable
discretion to determine whether an election, revocation or change has been
properly or timely made and to disregard immaterial defects in any Form of
Election, and any good faith decisions of the Exchange Agent regarding such
matters will be binding and conclusive. In addition, neither QuadraMed nor the
Exchange Agent will be under any obligation to notify any person of any defect
in an Form of Election.
 
   
     A HOLDER OF SHARES WHO FAILS (A) TO COMPLETE PROPERLY AND TO RETURN THIS
FORM OF ELECTION TO THE EXCHANGE AGENT BY THE ELECTION DEADLINE, (B) DELIVER
HEREWITH HIS OR HER CERTIFICATES OR (C) TO DELIVER HEREWITH ANY OTHER REQUIRED
DOCUMENTS, WILL CAUSE EACH OF SUCH HOLDER'S SHARES TO BE TREATED AS NOT HAVING
MADE AN ELECTION IN THE MERGER AND HIS OR HER SHARES WILL BE DESIGNATED
"NON-ELECTION SHARES." THE "NON-ELECTION SHARES" SHALL BE CONVERTED INTO THE
RIGHT TO
    
 
                                        7
<PAGE>   8
 
   
RECEIVE SHARES OF QUADRAMED COMMON STOCK AT THE EFFECTIVE TIME (SUBJECT TO
QUADRAMED'S RIGHT TO MAKE THE QUADRAMED CASH ELECTION AND QUADRAMED'S OBLIGATION
TO ISSUE NO MORE THAN 1,800,000 SHARES OF QUADRAMED COMMON STOCK IN THE MERGER).
    
 
     2. Allocation Procedures. Within five business days after the Effective
Time, QuadraMed will cause the Exchange Agent to allocate to the holders of
Medicus Common Stock the right to receive, with respect to each Share of Medicus
Common Stock, cash and/or QuadraMed Common Stock in accordance with the
allocation procedures set forth in the Merger Agreement.
 
   
     3. Election Deadline. IN ORDER FOR AN ELECTION TO BE EFFECTIVE, THE
EXCHANGE AGENT MUST RECEIVE A PROPERLY COMPLETED FORM OF ELECTION, ACCOMPANIED
BY ALL REQUESTED DOCUMENTS, NO LATER THAN 5:00 P.M., NEW YORK CITY TIME, ON
[APRIL 15,] 1998.
    
 
   
     4. Changes to Elections. Any holder of Shares who has made an Election may,
at any time prior to the Election Deadline, change his or her Election by
submitting to the Exchange Agent a properly completed and signed revised Form of
Election and all required additional documents, provided that the Exchange Agent
receives such revised Form of Election and other necessary documents prior to
the Election Deadline. Any holder of Medicus Common Stock may at any time prior
to the Election Deadline revoke his or her Election and withdraw his or her
Certificates deposited with the Exchange Agent by written notice to the Exchange
Agent received prior to the Election Deadline.
    
 
     5. No Fractional Shares. No fraction of a share of QuadraMed Common Stock
will be issued in the Merger. In lieu of any fractional shares that would
otherwise be issuable in the Merger in exchange for shares of Medicus Common
Stock, QuadraMed shall pay the proportionate amount of the Per Share Cash Amount
that would be payable in respect of such fractional share.
 
                                     * * *
 
   
     A more complete description of the election and allocation procedures is
set forth in the accompanying Proxy Statement/Prospectus under "THE
MERGER -- Election Procedures; Procedures For Surrender and Exchange of
Certificates." All Elections are subject to compliance with the election
procedures provided for in the Merger Agreement. In connection with making any
Election, a holder of Shares should read carefully, among other matters, the
description and statement of the information contained in the Proxy
Statement/Prospectus under "SPECIAL FACTORS -- Federal Income Tax Consequences."
Each holder should consult his or her own tax advisor as to the specific tax
consequences of the Election and the Merger to such stockholder.
    
 
C. RECEIPT OF CONSIDERATION, SPECIAL INSTRUCTIONS, TAXES AND ADDITIONAL COPIES
 
     1. Receipt of Consideration. As soon as practicable after the allocation by
the Exchange Agent, holders who have surrendered their Certificates to the
Exchange Agent for cancellation, together with this Form of Election duly
executed and completed in accordance with the instructions hereto and such other
documents as are required pursuant to such instructions, shall receive in
exchange therefor (A) a check in the amount equal to the cash, if any, which
such holder has a right to receive (including cash in lieu of any fractional
Shares) and (B) a certificate representing that number of whole shares of
QuadraMed Common Stock, if any, which such holder has the right to receive. All
cash paid or shares of QuadraMed Common Stock issued upon conversion of the
Shares in accordance with the terms of the Merger Agreement shall be deemed to
have been paid or issued in full satisfaction of all rights pertaining to such
Shares.
 
     2. Special Payment and Delivery Instructions. If any check or certificates
evidencing shares of QuadraMed Common Stock are to be payable to the order of,
or registered in the name of, a person other than the person(s) signing this
Form of Election or if such checks or such certificates are to be sent to
someone other than the person(s) signing this Form of Election or to the
person(s) signing this Form of Election but at an address other than that shown
in the box entitled "Description of Medicus Shares," the appropriate boxes on
this Form of Election must be completed.
 
   
     3. Stock Transfer Taxes. QuadraMed will bear the liability for any state
stock transfer taxes applicable to the issuance and delivery of checks and
certificates in connection with the Merger; provided, however, that if any such
check or certificate is to be issued in a name other than that in which the
Certificates surrendered in exchange therefor are registered, it shall be a
condition of such exchange that the person requesting such exchange shall pay
the amount of any
    
 
                                        8
<PAGE>   9
 
stock transfer taxes (whether imposed on the registered holder or such person),
payable on the account of the transfer to such person, to the Exchange Agent or
satisfactory evidence of the payment of such taxes, or exemption therefrom,
shall be submitted to the Exchange Agent before any such check or certificate is
issued. EXCEPT AS PROVIDED IN THIS INSTRUCTION C3, IT WILL NOT BE NECESSARY FOR
TRANSFER TAX STAMPS TO BE AFFIXED TO THE CERTIFICATES EVIDENCING THE SHARES
DELIVERED HEREWITH.
 
     4. Withholding Period. QuadraMed and the Exchange Agent shall be entitled
to deduct and withhold from the Merger Consideration otherwise payable pursuant
to the Merger Agreement to any holder of Shares such amounts as it is required
to deduct and withhold with respect to the making of such payment under the
Internal Revenue Code of 1986, as amended, or any provision of state, local or
foreign tax law. To the extent that amounts are so withheld by QuadraMed or the
Exchange Agent, as the case may be, such withheld amounts shall be treated for
all purposes of the Merger Agreement as having been paid to the holder of the
Shares in respect of which such deduction and withholding was made by QuadraMed
or the Exchange Agent, as the case may be.
 
     5. Requests for Assistance or Additional Copies. Requests for assistance
may be directed to the Exchange Agent at its respective address or telephone
number set forth below. Additional copies of the Proxy Statement/Prospectus,
this Form of Election and the Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9 may be obtained from the Exchange
Agent or from brokers, dealers, commercial banks or trust companies.
 
   
     6. Substitute Form W-9. Under the federal income tax law, a stockholder who
delivers Shares is required by law to provide the Exchange Agent (as payer) with
such stockholder's correct Taxpayer Identification Number ("TIN") on the
Substitute Form W-9 above. If such stockholder is an individual, the TIN is such
stockholder's Social Security Number. If the Exchange Agent is not provided with
the correct TIN, the stockholder may be subject to a $50 penalty imposed by the
Internal Revenue Service (the "IRS"). In addition, any cash payments that are
made to such stockholder with respect to Shares converted in the Merger may be
subject to backup withholding of 31%. Certain stockholders (including, among
others, all corporations and certain foreign individuals) are not subject to
these backup withholding and reporting requirements. In order for a foreign
individual to qualify as an exempt recipient, such individual must submit a
statement, signed under penalties of perjury, attesting to such individual's
exempt status. Forms of such statements can be obtained from the Exchange Agent.
See the enclosed Guidelines for Certification of Taxpayer Identification Number
on Substitute Form W-9 for additional instructions. If backup withholding
applies with respect to a shareholder, the Exchange Agent is required to
withhold 31% of any cash payments made to such stockholder. Backup withholding
is not an additional tax. Rather, the tax liability of persons subject to backup
withholding will be reduced by the amount of tax withheld. If withholding
results in an overpayment of taxes, a refund may be obtained from the IRS upon
filing of the applicable tax return.
    
 
   
     To prevent backup withholding on any cash payments that are made to a
stockholder with respect to Shares delivered herewith, the stockholder is
required to notify the Exchange Agent of such stockholder's correct TIN by
completing the Substitute Form W-9 above certifying (a) that the TIN provided on
Substitute Form W-9 is correct (or that such stockholder is awaiting a TIN) and
(b) that (i) such stockholder has not been notified by the IRS that such
stockholder is subject to backup withholding as a result of a failure so report
all interest or dividends or (ii) the IRS has notified such stockholder that
such stockholder is no longer subject to backup withholding.
    
 
   
     The stockholder is required to give the Exchange Agent the Social Security
Number or Employer Identification Number of the record holder of the Shares
rendered hereby. If the Shares are in more than one name or are not in the name
of the actual owner, consult the enclosed Guidelines for Certification of
Taxpayer Identification Number on Substitute Form W-9 for additional guidance
concerning which number to report. If the stockholder has not been issued a TIN
and has applied for a number or states, under penalty of perjury, the intention
to apply for a number in the near future, such stockholder should write "Applied
For" in the space provident for the TIN in Part I, and sign and date the
Substitute Form W-9. If "Applied For" is written in Part I and the Exchange
Agent is not provided with a TIN within 60 days, the Exchange Agent will
withhold 31% of all cash payments to such stockholder until a TIN is provided to
the Exchange Agent.
    
 
   
     Each Medicus stockholder should consult his or her own accountant or tax
advisor for further guidance in completing the Substitute Form W-9.
    
 
                                        9
<PAGE>   10
 
   
     7. Lost, Stolen or Destroyed Certificate(s). If any Certificate(s)
representing Shares has been lost, destroyed or stolen, the Certificate holder
should promptly notify [NAME OF TRANSFER AGENT AT                ]. Such
Certificate holder will then be instructed as to the steps that must be taken in
order to replace the Certificate(s). Upon the making of an affidavit of that
fact by the person claiming such Certificate(s) to be lost, stolen or destroyed
and the posting by such person of a bond as indemnity against any claim that may
be made with respect to such Certificate(s), [NAME OF TRANSFER AGENT] will issue
in exchange for such lost, stolen or destroyed Certificate(s) a new Certificate
representing such Shares. This Form of Election cannot be processed until the
procedures for replacing lost or destroyed Certificates have been followed.
    
 
                                  * * * * * *
 
   
     Questions and requests for assistance or additional copies of the Proxy
Statement/Prospectus or this Form of Election may be directed to the Exchange
Agent at (800) 426-5523 or at the address set forth above.
    
 
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