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BCBS Alpha Numeric Prefix from Z2A to Z9Z

BCBS Alpha Numeric Prefixes are three-character combinations of letters and numbers found at the beginning of the identification number on Blue Cross Blue Shield insurance cards. They help in identifying the health plans of patients along with their insurance companies.

This blog will cover the alpha numeric prefixes ranging from Z2A to Z9Z and list down their applicable state, insurance company name, and type of health plans.

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BCBS Alpha Numeric Prefix from Z2A to Z9Z – Latest Insights

BCBS Prefix State Company Name Types Of Health Plan
Z2A Prefix Unallocated/Not Assigned
Z2B Indiana Anthem Blue-Cross Blue-Shield of Indiana PPO, HDHP, Traditional Indemnity
Z2C Prefix Unallocated/Not Assigned
Z2D Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania POS, Traditional Indemnity, PPO
Z2E Prefix Unallocated/Not Assigned
Z2F Minnesota Blue-Cross Blue-Shield of Minnesota Medicare Advantage, HMO, POS
Z2G Texas Blue Cross Blue Shield of Texas Traditional Indemnity, PPO, HDHP
Z2H South Dakota/Iowa Wellmark Blue-Cross Blue-Shield EPO, POS, Medicare Advantage
Z2I Prefix Unallocated/Not Assigned
Z2J Prefix Unallocated/Not Assigned
Z2K Alabama Blue-Cross Blue-Shield of Alabama POS, Medicare Advantage, HMO
Z2L Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania HDHP, Traditional Indemnity, PPO
Z2M Rhode Island Blue-Cross Blue-Shield of Rhode Island EPO, HMO, Medicare Supplement
Z2N Prefix Unallocated/Not Assigned
Z2O Prefix Unallocated/Not Assigned
Z2P Georgia Anthem Blue-Cross Blue-Shield of Georgia HMO, Medicare Supplement, POS
Z2Q Maine Blue Cross Blue Shield of Maine Traditional Indemnity, PPO, HDHP
Z2R Wisconsin Blue Cross Blue Shield of Wisconsin EPO, Medicare Advantage, HMO
Z2S South Dakota/Iowa Wellmark Blue-Cross Blue-Shield POS, Traditional Indemnity, PPO
Z2T Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield HDHP, EPO, Medicare Supplement
Z2U Nevada Blue Cross Blue Shield of Nevada Medicare Advantage, HMO, POS
Z2V Wisconsin Blue Cross Blue Shield of Wisconsin Traditional Indemnity, PPO, HDHP
Z2W Maine Blue Cross Blue Shield of Maine EPO, POS, Medicare Advantage
Z2X Wisconsin Blue Cross Blue Shield of Wisconsin HMO, Traditional Indemnity, EPO
Z2Y Prefix Unallocated/Not Assigned
Z2Z Prefix Unallocated/Not Assigned
Z3A Illinois Blue-Cross Blue-Shield of Illinois HDHP, Traditional Indemnity, PPO
Z3B Connecticut Anthem Blue-Cross Blue-Shield of Connecticut EPO, HMO, Medicare Supplement
Z3C Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania PPO, POS, Traditional Indemnity
Z3D Prefix Unallocated/Not Assigned
Z3E Prefix Unallocated/Not Assigned
Z3F Illinois Blue-Cross Blue-Shield of Illinois Traditional Indemnity, PPO, HDHP
Z3G Illinois Blue-Cross Blue-Shield of Illinois EPO, Medicare Advantage, HMO
Z3H South Dakota/Iowa Wellmark Blue-Cross Blue-Shield POS, Traditional Indemnity, PPO
Z3I Prefix Unallocated/Not Assigned
Z3J Arizona Blue-Cross Blue-Shield of Arizona Medicare Advantage, HMO, POS
Z3K Illinois Blue-Cross Blue-Shield of Illinois Traditional Indemnity, PPO, HDHP
Z3L New Hampshire Anthem Blue-Cross Blue-Shield of New Hampshire EPO, POS, Medicare Advantage
Z3M Rhode Island Blue-Cross Blue-Shield of Rhode Island HMO, Traditional Indemnity, EPO
Z3N Illinois Blue-Cross Blue-Shield of Illinois Medicare Supplement, PPO, HDHP
Z3O Prefix Unallocated/Not Assigned
Z3P Arizona Blue-Cross Blue-Shield HDHP, Traditional Indemnity, PPO
Z3Q Prefix Unallocated/Not Assigned
Z3R Massachusetts Blue-Cross Blue-Shield of Massachusetts PPO, POS, Traditional Indemnity
Z3S Illinois Blue-Cross Blue-Shield of Illinois Medicare Advantage, HDHP, EPO
Z3T Alaska Premera Blue-Cross Blue-Shield of Alaska HMO, Medicare Supplement, POS
Z3U Prefix Unallocated/Not Assigned
Z3V New York Empire Blue-Cross Blue-Shield of New York EPO, Medicare Advantage, HMO
Z3W Alaska Premera Blue-Cross Blue-Shield of Alaska POS, Traditional Indemnity, PPO
Z3X New Hampshire Anthem Blue-Cross Blue-Shield of New Hampshire HDHP, EPO, Medicare Supplement
Z3Y Prefix Unallocated/Not Assigned
Z3Z Georgia Anthem Blue-Cross Blue-Shield Traditional Indemnity, PPO, HDHP
Z4A Virginia Anthem Blue-Cross Blue-Shield of Virginia EPO, POS, Medicare Advantage
Z4B Colorado Anthem Blue-Cross Blue-Shield of Colorado HMO, Traditional Indemnity, EPO
Z4C Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania Medicare Supplement, PPO, HDHP
Z4D Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania POS, Medicare Advantage, HMO
Z4E Arizona Blue-Cross Blue-Shield of Arizona HDHP, Traditional Indemnity, PPO
Z4F Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania EPO, HMO, Medicare Supplement
Z4G Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield PPO, POS, Traditional Indemnity
Z4H Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania Medicare Advantage, HDHP, EPO
Z4I Prefix Unallocated/Not Assigned
Z4J Virginia Anthem Blue-Cross Blue-Shield of Virginia Traditional Indemnity, PPO, HDHP
Z4K Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield EPO, Medicare Advantage, HMO
Z4L Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield POS, Traditional Indemnity, PPO
Z4M Arizona Blue-Cross Blue-Shield of Arizona HDHP, EPO, Medicare Supplement
Z4N Arizona Blue-Cross Blue-Shield of Arizona Medicare Advantage, HMO, POS
Z4O Prefix Unallocated/Not Assigned
Z4P Arizona Blue-Cross Blue-Shield of Arizona EPO, POS, Medicare Advantage
Z4Q Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania HMO, Traditional Indemnity, EPO
Z4R Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield Medicare Supplement, PPO, HDHP
Z4S Prefix Unallocated/Not Assigned
Z4T Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield HDHP, Traditional Indemnity, PPO
Z4U Prefix Unallocated/Not Assigned
Z4V Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield PPO, POS, Traditional Indemnity
Z4W Prefix Unallocated/Not Assigned
Z4X Arizona Blue-Cross Blue-Shield of Arizona HMO, Medicare Supplement, POS
Z4Y Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania Traditional Indemnity, PPO, HDHP
Z4Z California Anthem Blue-Cross EPO, Medicare Advantage, HMO
Z5A Illinois Blue-Cross Blue-Shield of Illinois POS, Traditional Indemnity, PPO
Z5B Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, EPO, Medicare Supplement
Z5C Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Advantage, HMO, POS
Z5D Indiana Anthem Blue-Cross Blue-Shield of Indiana Traditional Indemnity, PPO, HDHP
Z5E Indiana Anthem Blue-Cross Blue-Shield of Indiana EPO, POS, Medicare Advantage
Z5F Indiana Anthem Blue-Cross Blue-Shield of Indiana HMO, Traditional Indemnity, EPO
Z5G Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Supplement, PPO, HDHP
Z5H Indiana Anthem Blue-Cross Blue-Shield of Indiana POS, Medicare Advantage, HMO
Z5I Prefix Unallocated/Not Assigned
Z5J Indiana Anthem Blue-Cross Blue-Shield of Indiana EPO, HMO, Medicare Supplement
Z5K New York (Northeastern) Blue-Shield of Northeastern New York PPO, POS, Traditional Indemnity
Z5L Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Advantage, HDHP, EPO
Z5M Arizona Blue-Cross Blue-Shield of Arizona HMO, Medicare Supplement, POS
Z5N Indiana Anthem Blue-Cross Blue-Shield of Indiana Traditional Indemnity, PPO, HDHP
Z5O Prefix Unallocated/Not Assigned
Z5P Indiana Anthem Blue-Cross Blue-Shield of Indiana POS, Traditional Indemnity, PPO
Z5Q Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, EPO, Medicare Supplement
Z5R Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Advantage, HMO, POS
Z5S Indiana Anthem Blue-Cross Blue-Shield of Indiana Traditional Indemnity, PPO, HDHP
Z5T Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania EPO, POS, Medicare Advantage
Z5U Indiana Anthem Blue-Cross Blue-Shield of Indiana HMO, Traditional Indemnity, EPO
Z5V Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Supplement, PPO, HDHP
Z5W Indiana Anthem Blue-Cross Blue-Shield of Indiana POS, Medicare Advantage, HMO
Z5X Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, Traditional Indemnity, PPO
Z5Y Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania EPO, HMO, Medicare Supplement
Z5Z Indiana Anthem Blue-Cross Blue-Shield of Indiana PPO, POS, Traditional Indemnity
Z6A New York Empire Blue-Cross Blue-Shield of New York POS, EPO, HMO
Z6B Prefix Unallocated/Not Assigned
Z6C Colorado Anthem Blue-Cross Blue-Shield of Colorado PPO, Traditional Indemnity, Medicare Supplement
Z6D California Anthem Blue-Cross EPO, POS, HMO
Z6E Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin Medicare Advantage, PPO, HDHP
Z6F Prefix Unallocated/Not Assigned
Z6G California Anthem Blue-Cross HDHP, EPO, POS
Z6H California Anthem Blue-Cross Traditional Indemnity, Medicare Advantage, HMO
Z6I Prefix Unallocated/Not Assigned
Z6J Connecticut Anthem Blue-Cross Blue-Shield of Connecticut Medicare Supplement, POS, PPO
Z6K Connecticut Anthem Blue-Cross Blue-Shield of Connecticut HMO, HDHP, Medicare Advantage
Z6L Prefix Unallocated/Not Assigned
Z6M New Hampshire Anthem Blue-Cross Blue-Shield of New Hampshire POS, Medicare Supplement, PPO
Z6N Alaska Premera Blue-Cross Blue-Shield of Alaska HDHP, HMO, Traditional Indemnity
Z6O Prefix Unallocated/Not Assigned
Z6P Indiana Anthem Blue-Cross Blue-Shield of Indiana PPO, Traditional Indemnity, HDHP
Z6Q Prefix Unallocated/Not Assigned
Z6R Texas Blue-Cross Blue-Shield of Texas POS, HDHP, Medicare Advantage
Z6S Texas Blue-Cross Blue-Shield of Texas Traditional Indemnity, PPO, EPO
Z6T Texas Blue-Cross Blue-Shield of Texas HMO, Medicare Supplement, POS
Z6U Virginia Anthe Blue Cross Blue Shield of Virginia HDHP, EPO, Medicare Advantage
Z6V Prefix Unallocated/Not Assigned
Z6W Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin Medicare Supplement, POS, HDHP
Z6X Prefix Unallocated/Not Assigned
Z6Y Georgia Anthem Blue-Cross Blue-Shield of Georgia Traditional Indemnity, PPO, POS
Z6Z Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin HDHP, Medicare Supplement, EPO
Z7A Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Advantage, HMO, PPO
Z7B Indiana Anthem Blue-Cross Blue-Shield of Indiana POS, Traditional Indemnity, HDHP
Z7C Indiana Anthem Blue-Cross Blue-Shield of Indiana EPO, Medicare Supplement, HMO
Z7D Indiana Anthem Blue-Cross Blue-Shield of Indiana PPO, POS, Traditional Indemnity
Z7E Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, EPO, Medicare Advantage
Z7F Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Supplement, HMO, POS
Z7G Indiana Anthem Blue-Cross Blue-Shield of Indiana Traditional Indemnity, PPO, HDHP
Z7H Indiana Anthem Blue-Cross Blue-Shield of Indiana EPO, Medicare Advantage, HMO
Z7I Prefix Unallocated/Not Assigned
Z7J Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, Medicare Supplement, EPO
Z7K Indiana Anthem Blue-Cross Blue-Shield of Indiana Medicare Advantage, HMO, POS
Z7L Connecticut Anthem Blue-Cross Blue-Shield of Connecticut Traditional Indemnity, PPO, HDHP
Z7M Rhode Island Blue-Cross Blue-Shield of Rhode Island EPO, Medicare Supplement, HMO
Z7N Prefix Unallocated/Not Assigned
Z7O Prefix Unallocated/Not Assigned
Z7P Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania Medicare Supplement, HMO, POS
Z7Q Prefix Unallocated/Not Assigned
Z7R Prefix Unallocated/Not Assigned
Z7S Prefix Unallocated/Not Assigned
Z7T California Anthem Blue-Cross Medicare Supplement, PPO, EPO
Z7U Prefix Unallocated/Not Assigned
Z7V Prefix Unallocated/Not Assigned
Z7W Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin EPO, Medicare Supplement, HDHP
Z7X Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin HMO, POS, Medicare Advantage
Z7Y Prefix Unallocated/Not Assigned
Z7Z Wisconsin Anthem Blue-Cross Blue-Shield of Wisconsin HDHP, Medicare Supplement, POS
Z8A California Anthem Blue-Cross Medicare Advantage, HMO, Traditional Indemnity
Z8B Pennsylvania Highmark Blue-Cross Blue-Shield of Pennsylvania PPO, EPO, POS
Z8C Indiana Anthem Blue-Cross Blue-Shield of Indiana HDHP, Medicare Supplement, HMO
Z8D Indiana Anthem Blue-Cross Blue-Shield of Indiana POS, PPO, Traditional Indemnity
Z8E Indiana Anthem Blue-Cross Blue-Shield of Indiana EPO, Medicare Advantage, HDHP
Z8F Indiana Anthem Blue-Cross Blue-Shield of Indiana HMO, Traditional Indemnity, Medicare Supplement
Z8G Georgia Anthem Blue-Cross Blue-Shield of Georgia PPO, POS, EPO
Z8H Georgia Anthem Blue-Cross Blue-Shield of Georgia
Z8I Prefix Unallocated/Not Assigned
Z8J Prefix Unallocated/Not Assigned HDHP, Medicare Supplement, EPO
Z8K Georgia Anthem Blue-Cross Blue-Shield of Georgia HMO, Medicare Advantage, POS
Z8L Georgia Anthem Blue-Cross Blue-Shield of Georgia Traditional Indemnity, PPO, HDHP
Z8M Arizona Blue-Cross Blue-Shield of Arizona Medicare Supplement, HMO, EPO
Z8N New York Empire Blue-Cross Blue-Shield of New York POS, Traditional Indemnity, PPO
Z8O Prefix Unallocated/Not Assigned HDHP, Medicare Advantage, EPO
Z8P Alaska Premera Blue-Cross Blue-Shield of Alaska HMO, POS, Traditional Indemnity
Z8Q Alaska Premera Blue-Cross Blue-Shield of Alaska PPO, Medicare Supplement, HDHP
Z8R Alaska Premera Blue-Cross Blue-Shield of Alaska EPO, Medicare Advantage, HMO
Z8S Prefix Unallocated/Not Assigned Traditional Indemnity, POS, PPO
Z8T California Anthem Blue Cross HDHP, EPO, Medicare Supplement
Z8U Prefix Unallocated/Not Assigned
Z8V Prefix Unallocated/Not Assigned
Z8W Ohio Blue-Cross Blue-Shield EPO, Medicare Supplement, HMO
Z8X Prefix Unallocated/Not Assigned
Z8Y Prefix Unallocated/Not Assigned
Z8Z Prefix Unallocated/Not Assigned
Z9A New Hampshire Anthem Blue-Cross Blue-Shield of New Hampshire Medicare Supplement, PPO, HDHP
Z9B Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield EPO, Medicare Advantage, HMO
Z9C Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield Traditional Indemnity, POS, PPO
Z9D Ohio Anthem Blue-Cross Blue-Shield of Ohio HDHP, EPO, Medicare Supplement
Z9E Prefix Unallocated/Not Assigned
Z9F Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield Traditional Indemnity, PPO, HDHP
Z9G Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield EPO, Medicare Supplement, HMO
Z9H Ohio Anthem Blue-Cross Blue-Shield of Ohio POS, Traditional Indemnity, PPO
Z9I Prefix Unallocated/Not Assigned
Z9J Prefix Unallocated/Not Assigned
Z9K Rhode Island Blue-Cross Blue-Shield of Rhode Island Traditional Indemnity, PPO, HDHP
Z9L Prefix Unallocated/Not Assigned
Z9M California Anthem Blue-Cross POS, Traditional Indemnity, PPO
Z9N Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield HDHP, EPO, Medicare Supplement
Z9O Prefix Unallocated/Not Assigned
Z9P Arizona Blue Cross Blue Shield of Arizona Traditional Indemnity, PPO, HDHP
Z9Q Prefix Unallocated/Not Assigned
Z9R Oregon/Idaho/Utah/Washington Regence Blue-Cross Blue-Shield POS, Traditional Indemnity, PPO
Z9S California Anthem Blue-Cross HDHP, Medicare Advantage, EPO
Z9T Connecticut Anthem Blue-Cross Blue-Shield of Connecticut HMO, Traditional Indemnity, POS
Z9U Prefix Unallocated/Not Assigned
Z9V Prefix Unallocated/Not Assigned
Z9W Prefix Unallocated/Not Assigned
Z9X Prefix Unallocated/Not Assigned
Z9Y Prefix Unallocated/Not Assigned
Z9Z Prefix Unallocated/Not Assigned

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Frequently Asked Questions (FAQs)

What should I do if I can't find the BCBS prefix on a card?

It is advisable to contact the member's insurance provider directly or use an online BCBS prefix lookup tool. An authentic tool can help identify the prefix based on the member's information.

How does the BCBS prefix affect billing?

The BCBS prefix is crucial for accurate billing. It ensures that claims are routed to the correct BCBS plan and processed efficiently. An incorrect or missing prefix can lead to delays or denials of claims.

Are there digital tools to look up BCBS prefixes?

Yes, there are digital tools available to look up BCBS prefixes. These tools can be found on the BCBS website or through third-party websites dedicated to BCBS prefix lookups.

Can I determine the member's plan from the BCBS prefix?

The three-character prefix at the beginning of the member's identification number is the key element used to identify and correctly route out-of-state claims to the appropriate BCBS Plan.

What resources are available for decoding BCBS prefixes?

Several resources are available for decoding BCBS prefixes. They include online prefix lookup tools provided by BCBS and third-party websites.

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