Exhibit 23.1

                         CONSENT OF INDEPENDENT AUDITORS
                         -------------------------------

          We consent to the reference to our firm in Item 6 to the financial
data table and to the incorporation by reference in the Registration Statements
(Form S-4 Nos. 333-67981, as amended as of March 22, 1999 and No. 333-28391) of
IDX Systems Corporation; the Registration Statements (Forms S-8 333-31047,
333-64028, 333-88464) pertaining to the 1985 Incentive Stock Option Plan, the
1994 Incentive Stock Option Plan, the 1995 Director Stock Option Plan, the 1995
Employee Stock Purchase Plan, the 1995 Stock Option Plan, the restricted stock
agreement, the 2002 Stock Incentive Plan for Non-Employee Directors, and
non-statutory stock options granted to directors and officers of IDX Systems
Corporation; the Registration Statement (Form S-8 No. 333-31045) pertaining to
the PHAMIS, Inc. Amended and Restated 1983 Combined Nonqualified and Incentive
Stock Option Plan, the PHAMIS, Inc. 1993 Combined Incentive and Nonqualified
Stock Option Plan as amended through May 14, 1996, the PHAMIS, Inc. 1994
Nonemployee Director Stock Option Plan as amended through January 1, 1996, the
PHAMIS, Inc. Salary Savings and Deferral Plan and Trust as amended through
February 22, 1996 and the PHAMIS, Inc. Cain Option Agreement; of our report
dated January 31, 2003 with respect to the consolidated financial statements and
schedule of IDX Systems Corporation included in this Annual Report (Form 10-K)
for the year ended December 31, 2002.

                                                  /s/ Ernst & Young LLP
                                         ---------------------------------------

Boston, Massachusetts
Dated: March 25, 2003