1 Exhibit 23.4 CONSENT OF INDEPENDENT AUDITORS ENVOY Corporation Nashville, Tennessee With respect to our report dated February 28, 1996, relating to the financial statements of Teleclaims, Inc., as of and for the years ended December 31, 1995 and 1994, we hereby consent to the inclusion and use of our report in the Registration Statement on Form S-3 of ENVOY Corporation, incorporated by reference in the prospectus. /s/ Hardman Guess Frost & Cummings, P.C. ------------------------------------ Hardman Guess Frost & Cummings, P.C. Birmingham, Alabama August 7, 1996