SAN FRANCISCO and NEWPORT BEACH, Calif. - January 29, 2008 - Blue Shield of California has contracted with the TriZetto Group Inc. (NASDAQ: TZIX) to acquire software for a major system-wide technology upgrade expected to launch in 2009. The multi-year project is part of Blue Shield's strategy to make it easier to do business with the not-for-profit plan by improving data systems associated with claims processing, membership, customer service, sales channels, and new product development. TriZetto is providing a number of software systems, including Facets®, Facets™ Workflow, Facets™ eXtended Integration, NetworX Modeler™, NetworX Pricer™, web solutions and ITS Interface software; on-going application management services; and implementation consulting services to Blue Shield.

"Overhauling our technology will allow us to better serve our consumers, business partners, insurance brokers and healthcare providers by enabling more efficient processes and tools," said Bob Novelli, executive vice president of customer services & corporate marketing at Blue Shield of California. "We are excited to have a trusted implementation partner in TriZetto to achieve that goal."

Elinor MacKinnon, Blue Shield's senior vice president and chief information officer, added, "This is one of the largest and most important technology projects Blue Shield has ever undertaken. Upgrading our core technology and business systems is central to delivering on our commitment to making health coverage easier for Californians. With the selection of this software package, we are off to a strong start."

Blue Shield of California chose TriZetto for its affiliations with many Blues plans and for being the industry-wide standard. Blue Shield of California represents the 79th payer and 16th Blue Cross Blue Shield Association member plan to standardize on Facets. The contract was signed in January 2008 and is expected to comprise approximately $100 million of new contract bookings for TriZetto. A small portion of the revenue under this agreement will be recognized in the first quarter of 2008 and the remainder is expected to be recognized in future periods.

"Our success with Blue Shield of California underscores the unique breadth, scalability and integration that TriZetto solutions offer to help payers improve productivity, enhance growth and accelerate new offerings and value for their members," said Tony Bellomo, TriZetto's executive vice president of product management. "I am proud of the strong partnership that was built between Blue Shield of California and TriZetto in this first part of the process. Leveraging that teamwork with our best practice implementation methodology, tools and templates will help assure a successful technology upgrade for Blue Shield of California."

About Blue Shield of California

Blue Shield of California, an independent member of the Blue Shield Association, is a not-for-profit health plan dedicated to providing Californians with access to high quality care at a reasonable price. Founded in 1939, it now has 3.2 million members, 4,500 employees, one of the largest provider networks and more than 20 office locations, providing a wide range of commercial and government products throughout the state. The company has contributed $100 million over the past three years to the Blue Shield of California Foundation to fund nonprofit organizations that improve access to quality health care in California. Contact your local agent or broker for more information about Blue Shield products and services, or visit the Blue Shield web site at www.blueshieldca.com.

Blue Shield and the Shield Symbols are registered service marks of the Blue Cross and Blue Shield Association, an association of independent Blue Cross and Blue Shield Plans.

About TriZetto

TriZetto is Powering Integrated Healthcare Management™. With its technology touching nearly half of the U.S. insured population, TriZetto is uniquely positioned to drive the convergence of health benefit administration, care management and constituent engagement. The company provides premier information technology solutions that enable payers and other constituents in the healthcare supply chain to improve the coordination of benefits and care for healthcare consumers. Healthcare payers include national and regional health insurance plans, and benefits administrators that provide transaction services to self-insured employer groups. The company's payer-focused information technology offerings include enterprise and component software, hosting and business process outsourcing services, and consulting. Headquartered in Newport Beach, Calif., TriZetto can be reached at 949-719-2200 or at 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 include statements about contract bookings and possible future revenue. Actual results may differ materially from those stated in any forward-looking statements based on a number of factors. Specifically, recognition of revenue under TriZetto's contract with Blue Shield of California described in this press release is subject to the acceptance by Blue Shield of California of certain software modifications and deliverables to be provided by TriZetto and certain other conditions. 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 Contacts:
Erica Perng
Blue Shield of California
Media Relations Consultant
415-229-6171
erica.perng@blueshieldca.com

Melissa Bruno
Schwartz Communications
781-684-0770
trizetto@schwartz-pr.com

Investor Contact:
Brad Samson
The TriZetto Group
949-719-2220
brad.samson@trizetto.com