NEWPORT BEACH, Calif. – June 23, 2005 – The TriZetto Group Inc. (NASDAQ: TZIX) announced that it is expanding its existing Medicare software and services to support the new requirements for Medicare Part D, the government's prescription drug benefit that will take effect January 1, 2006. TriZetto currently has 23 Medicare health plan customers, which use its Facets® enterprise software to process medical transactions for 16 percent of all managed Medicare members.

Facets has supported Medicare Advantage plans since 1997; however, TriZetto is now enhancing the software to administer the new Medicare Part D drug benefit. In conjunction with these software enhancements, TriZetto will also be offering a new Medicare Part D FastTrak service, a fully outsourced option that combines hosted Facets software with business services. This solution will allow a health plan to enter the Part D market faster and with minimal impact to its current operations.

Part D FastTrak, as well as the Medicare Part D software, will be available to customers in September. The Part D software will also be retrofitted back to existing Facets customers currently using the 4.x version of the software.

Key new features of Facets will include the following:

Enrollment and Billing: Facets will receive and store the additional information that the Center for Medicare Services (CMS) requires to enroll a Part D beneficiary. Facets will be automatically populated with the data returned by CMS, and this information can be used for monthly and annual reconciliation activities.

Facets will support direct payment of the enrollee's premiums to the health plan, for those members who select this option. Health plans will also be able to administer and track late enrollment penalties.

Reporting/Fulfillment Services: Through Facets, the health plan will be able to generate member ID cards and correspondence related to Part D benefits. In addition, Facets can be configured to provide pharmacy benefits managers (PBM) with the member's co-pay, deductible and co-insurance information, for accurate claims processing.

Customer Service: The influx of new enrollees and the complexities associated with the Part D product are likely to increase the volume and duration of inquiries to the health plan's customer service desk. Inquiries pertaining to eligibility for benefits, late enrollment penalties, and continuity of coverage can be easily handled through Facets' customer service application.

Appeals and Grievances: Facets has a separate application designed specifically to handle the rigorous record keeping that CMS requires for tracking and reporting all formal grievances and appeals.

Reconciliation: Using Facets, the health plan can identify any discrepancies in the monthly CMS capitation payments it receives. It can also validate the member's risk adjustment factors, on which CMS payments are based. The health plan can also use this functionality to manage reinsurance and risk corridor calculations.

"Health plans must move quickly to get their systems ready for November enrollment of Part D members," said Bellomo. "At TriZetto, we are committed to providing complete and timely Medicare and Part D solutions to get health plans up and running quickly. Our enhancements to Facets will address not only Part D enrollment, but also billing and connectivity to the Centers for Medicare and Medicaid Services. Our software will also provide the health plan with the customer service tools it needs to track and handle the new types of inquiries Part D is likely to generate from members. .At TriZetto, we can offer an end-to-end Part D technology solution to help our customers in all these areas."

TriZetto Medicare Part D FastTrak can be deployed by health plans of any size in less than six months. This service uses pre-configured benefits and implementation methodologies to reduce the time and expense of running Facets for Part D. The hosted software is integrated with Medicare CMS eligibility systems, and the business services include eligibility and enrollment administration, as well as premium billing.

"Whether a health plan prefers to license software, or fully outsource the hosting and administration to our professional staff, TriZetto has the technology and services expertise to help our customers compete effectively in the government arena," added Bellomo.

About TriZetto

TriZetto serves the payer market, comprised of national and regional health insurance plans as well as benefits administrators, which provide transaction services to self-insured employer groups. The company offers a broad portfolio of information technology products - software, outsourcing services, and consulting services - tailored to the needs of healthcare payers. Headquartered in Newport Beach, Calif., TriZetto can be reached at (949) 719-2200 or www.trizetto.com.

Important Notice Regarding Forward-Looking Statements

This press release contains forward-looking statements that involve risks and uncertainties. The forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include statements about future revenue, profits, cash flows and financial results, the market for TriZetto's services, future service offerings, industry trends, client and partner relationships, TriZetto's operational capabilities, future financial structure, uses of cash or proposed transactions. Actual results may differ materially from those stated in any forward-looking statements based on a number of factors, including the effectiveness of TriZetto's implementation of its business plan, the market's acceptance of TriZetto's new and existing products and services, the timing of new bookings, risks associated with management of growth, reliance on third parties to supply key components of TriZetto's services, attraction and retention of employees, variability of quarterly operating results, competitive factors, risks associated with acquisitions, changes in demand for third party products or solutions which form the basis of TriZetto's service and product offerings, financial stability of our customers, the ability of TriZetto to meet its contractual obligations to customers, including service level and disaster recovery commitments, changes in government laws and regulations and risks associated with rapidly changing technology, as well as the other risks identified in TriZetto's SEC filings, including, but not limited to, its annual report on Form 10-K and quarterly reports on Form 10-Q, copies of which may be obtained by contacting TriZetto's Investor Relations department at 949-719-2225 or at TriZetto's web site at www.trizetto.com. All information in this release is as of June 23, 2005. TriZetto undertakes no duty to update any forward-looking statement to conform the statement to actual results or changes in the company's expectations.

CONTACTS:

Media Contact:
Audrey McDill
303-495-7197
audrey.mcdill@trizetto.com