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                                                                    EXHIBIT 99.1


                                                        Jim D. Kever
                                                        President/Co-Chief
                                                        Executive Officer
                                                        (615) 885-3700

                          ENVOY CORPORATION TO ACQUIRE
                            EXPRESSBILL(R) COMPANIES

NASHVILLE, Tennessee (February 23, 1998) - ENVOY Corporation (Nasdaq/NM:ENVY), a
leading provider of health care electronic data interchange services, today
announced the execution of definitive agreements to acquire the three companies
operating the ExpressBill(R) patient statement processing and printing services
businesses, for an aggregate of 3,500,000 shares of ENVOY common stock.
Shareholders of XpiData, Inc., based in Scottsdale, Arizona, will receive
1,365,000 shares and Professional Office Services, Inc. and its affiliated
company, Automated Revenue Management, Inc., both of which are based in Toledo,
Ohio, will receive an aggregate of 2,135,000 shares. The ExpressBill(R) patient
statement services include electronic data transmission and formatting,
statement printing and mailing services for health care providers and practice
management system vendors. The transactions are expected to be tax-free
exchanges of capital stock and will be accounted for as poolings of interests.

         Commenting on the announcement, Fred C. Goad, Jr., chairman and
co-chief executive officer of ENVOY, said, "Not only will these transactions be
accretive to ENVOY's financial results, the acquisitions of the ExpressBill(R)
companies and their patient statement services fit perfectly with ENVOY's
strategy to further expand the breadth of our service offering to the health
care provider's desktop."

         ENVOY Corporation is a leading provider of electronic data interchange
services to participants in the health care market, including pharmacies,
physicians, hospitals, dentists, billing services, commercial insurance
companies, managed care organizations, state and federal government agencies and
others. Further information about ENVOY Corporation is available on-line at:
http://www.ENVOYCORP.com.

         This press release contains forward-looking statements within the
meaning of the Private Litigation Act of 1995. These statements are based on
current plans and expectations of ENVOY Corporation and involve risks and
uncertainties that could cause actual future activities and results of
operations to be materially different from those set forth in the
forward-looking statements. Among the important factors that could cause actual
results to differ materially from those indicated by such forward-looking
statements are competitive pressures, changes in pricing policies, delays in
product development, business conditions in the marketplace, general economic
conditions and the risk factors detailed from time to time in the Company's
periodic reports and registration statements filed with the Securities and
Exchange Commission. The Company expressly disclaims any intent or obligation to
update these forward-looking statements.




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