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BCBS Alpha Numeric Prefix from X2A to X9Z (Update 2025)
Table of Contents
Introduction
In the complex world of medical billing, it is crucial to recognize the various Blue Cross Blue Shield (BCBS) member ID prefixes. These prefixes help medical billers, healthcare providers, and patients identify the specific BCBS healthcare plan relevant to their needs. In this article, we will detail the BCBS Alpha Numeric Prefix from X2A to X9Z, mentioning the home plan name and website associated with each prefix.
List of BCBS Alpha Numeric Prefix from X2A to X9Z
Here is the comprehensive list of BCBS prefixes ranging from X2A to X9Z:
| BCBS Alpha Numeric Prefix | BCBS Home Plan Name | State | BCBS Home Plan Website |
|---|---|---|---|
| X2A | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X2B | Blue Cross of Idaho | Idaho | BC Idaho |
| X2C | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X2D | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X2E | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X2F | Anthem Blue Cross of California | California | Anthem CA |
| X2G | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2H | Wellmark Blue Cross Blue Shield | South Dakota/Iowa | Wellmark |
| X2I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2L | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2M | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X2N | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2P | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X2Q | Wellmark Blue Cross Blue Shield | South Dakota/Iowa | Wellmark |
| X2R | BCBS of Illinois | Illinois | BCBS IL |
| X2S | BCBS of Illinois | Illinois | BCBS IL |
| X2T | BCBS of Illinois | Illinois | BCBS IL |
| X2U | BCBS of Illinois | Illinois | BCBS IL |
| X2V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X2Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3A | Anthem Blue Cross Blue Shield of New Hampshire | New Hampshire | Anthem NH |
| X3B | Anthem Blue Cross Blue Shield of New Hampshire | New Hampshire | Anthem NH |
| X3C | Anthem BCBS of Colorado | Colorado | Anthem CO |
| X3D | Anthem Blue Cross Blue Shield of New Hampshire | New Hampshire | Anthem NH |
| X3E | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3F | Anthem Blue Cross Blue Shield of New Hampshire | New Hampshire | Anthem NH |
| X3G | Anthem Blue Cross Blue Shield of New Hampshire | New Hampshire | Anthem NH |
| X3H | Wellmark Blue Cross Blue Shield | South Dakota/Iowa | Wellmark |
| X3I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3L | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3M | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X3N | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3P | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3Q | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3R | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3S | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3T | Anthem Blue Cross of California | California | Anthem CA |
| X3U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X3Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4A | Anthem Blue Cross of California | California | Anthem CA |
| X4B | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4C | Anthem BCBS of Wisconsin | Wisconsin | Anthem WI |
| X4D | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X4E | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4F | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4G | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4H | Anthem Blue Cross of California | California | Anthem CA |
| X4I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4L | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4M | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X4N | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X4O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4P | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4Q | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X4R | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4S | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4T | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4V | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X4W | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X4X | Anthem BCBS of Colorado | Colorado | Anthem CO |
| X4Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X4Z | Anthem BCBS of Wisconsin | Wisconsin | Anthem WI |
| X5A | Anthem Blue Cross of California | California | Anthem CA |
| X5B | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X5C | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X5D | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5E | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5F | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5G | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5H | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5L | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5M | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X5N | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5P | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X5Q | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5R | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5S | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5T | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X5U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X5Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6A | Anthem BCBS of Colorado | Colorado | Anthem CO |
| X6B | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6C | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6D | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6E | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6F | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X6G | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X6H | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6J | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6K | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6L | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6M | Anthem BCBS of Virginia | Virginia | Anthem VA |
| X6N | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6P | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6Q | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6R | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6S | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6T | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X6U | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6V | Anthem BCBS of Indiana | Indiana | Anthem IN |
| X6W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X6Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7A | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7B | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7C | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7D | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7E | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7F | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7G | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7H | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7J | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7K | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7L | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7M | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7N | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7P | Anthem BCBS of Connecticut | Connecticut | Anthem CT |
| X7Q | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7R | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7S | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7T | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7W | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X7X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X7Y | Premera Blue Cross of Alaska | Alaska | Premera AK |
| X7Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8A | Anthem Blue Cross of California | California | Anthem CA |
| X8B | Anthem Blue Cross of California | California | Anthem CA |
| X8C | Regence BCBS | Oregon/Idaho/Utah/Washington | Regence |
| X8D | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8E | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8F | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8G | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8H | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8L | Anthem Blue Cross of Ohio | Ohio | Anthem OH |
| X8M | Anthem Blue Cross of California | California | Anthem CA |
| X8N | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8P | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8Q | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8R | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8S | Anthem Blue Cross of California | California | Anthem CA |
| X8T | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X8Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9A | Anthem Blue Cross of California | California | Anthem CA |
| X9B | Anthem Blue Cross of California | California | Anthem CA |
| X9C | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9D | Anthem Blue Cross of California | California | Anthem CA |
| X9E | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9F | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9G | Anthem Blue Cross of California | California | Anthem CA |
| X9H | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9I | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9J | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9K | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9L | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9M | Anthem Blue Cross of California | California | Anthem CA |
| X9N | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9O | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9P | Anthem BCBS of Wisconsin | Wisconsin | Anthem WI |
| X9Q | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9R | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9S | Anthem Blue Cross of California | California | Anthem CA |
| X9T | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9U | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9V | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9W | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9X | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9Y | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
| X9Z | Prefix Unallocated / Not Assigned | Yet to be assigned | Yet to be assigned |
Conclusion
Navigating the medical billing landscape can be challenging, especially when it comes to understanding the various BCBS alpha numeric prefixes. Knowing from X2A to X9Z can ensure that medical billers and healthcare providers can efficiently process claims and provide adequate services.
If you need further assistance on BCBS prefixes or require medical billing solutions, you can always reach out to Texmed Billing Solutions at support@texmed.us.