Book Appointment Now
BCBS Alpha Numeric Prefix from K2A to K9Z (Update 2025)
Table of Contents
Blue Cross Blue Shield (BCBS) member ID prefixes are essential for medical billers, healthcare providers, and patients to identify the correct BCBS healthcare plan. In this guide, we detail the complete list of BCBS Alpha Numeric Prefixes from K2A to K9Z, along with their associated home plans, states, and websites.
Importance of BCBS Member ID Prefixes
Understanding BCBS member ID prefixes is vital for efficient medical billing and claims processing. Using the correct prefix ensures that claims are sent to the right location, speeding up reimbursements and reducing denial rates.
List of BCBS Alpha Numeric Prefix from K2A to K9Z
Here’s the comprehensive list of BCBS Alpha Numeric Prefixes from K2A to K9Z:
BCBS Alpha Numeric Prefix | BCBS Home Plan Name | State | BCBS Home Plan Website |
---|---|---|---|
K2A | BCBS of Texas | Texas | bcbstx.com |
K2B | BCBS of Texas | Texas | bcbstx.com |
K2C | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K2D | BCBS of Illinois | Illinois | bcbsil.com |
K2E | Anthem Blue Cross of California | California | anthem.com/ca |
K2F | BCBS of Illinois | Illinois | bcbsil.com |
K2G | BCBS of Oklahoma | Oklahoma | bcbsok.com |
K2H | BCBS of Western New York | New York (Western) | bcbswny.com |
K2I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K2J | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2K | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2L | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2M | Horizon BCBS of New Jersey | New Jersey | horizonblue.com |
K2N | Blue Cross Blue Shield of Vermont | Vermont | bluecrossvt.org |
K2O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K2P | Horizon BCBS of New Jersey | New Jersey | horizonblue.com |
K2Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K2R | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2S | Premera Blue Cross of Alaska | Alaska | premera.com |
K2T | BCBS of Minnesota | Minnesota | bluecrossmn.com |
K2U | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2V | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K2W | Anthem BCBS of Kentucky | Kentucky | anthem.com/contact-us/kentucky |
K2X | BCBS of Illinois | Illinois | bcbsil.com |
K2Y | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K2Z | Anthem BCBS of Kentucky | Kentucky | anthem.com/contact-us/kentucky |
K3A | Anthem Blue Cross of California | California | anthem.com/ca |
K3B | Empire BCBS of New York | New York | empireblue.com |
K3C | Anthem BCBS of Virginia | Virginia | abcbsva.anthem.com |
K3D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3F | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K3G | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K3H | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K3I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3L | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K3M | Anthem Blue Cross of California | California | anthem.com/ca |
K3N | BCBS of Texas | Texas | bcbstx.com |
K3O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3P | Anthem BCBS of Virginia | Virginia | abcbsva.anthem.com |
K3Q | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K3R | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
K3S | Premera Blue Cross of Alaska | Alaska | premera.com |
K3T | Anthem Blue Cross of California | California | anthem.com/ca |
K3U | BCBS of Illinois | Illinois | bcbsil.com |
K3V | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K3W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K3Z | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K4A | Empire BCBS of New York | New York | empireblue.com |
K4B | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K4C | BCBS of Michigan | Michigan | bcbsm.com |
K4D | Anthem BCBS of Ohio | Ohio | anthem.com/contact-us/ohio |
K4E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4F | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K4G | Carefirst Blue Cross Blue-Shield | Maryland/District of Columbia/Northern Virginia | provider.carefirst.com |
K4H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4L | Anthem BCBS of Ohio | Ohio | anthem.com/contact-us/ohio |
K4M | Empire BCBS of New York | New York | empireblue.com |
K4N | BCBS of Massachusetts | Massachusetts | bluecrossma.org |
K4O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4R | Empire BCBS of New York | New York | empireblue.com |
K4S | BCBS of Massachusetts | Massachusetts | bluecrossma.org |
K4T | Carefirst Blue Cross Blue-Shield | Maryland/District of Columbia/Northern Virginia | provider.carefirst.com |
K4U | BCBS of Illinois | Illinois | bcbsil.com |
K4V | BCBS of Texas | Texas | bcbstx.com |
K4W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K4Z | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K5A | Anthem Blue Cross of California | California | anthem.com/ca |
K5B | Anthem BCBS of Ohio | Ohio | anthem.com/contact-us/ohio |
K5C | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K5D | BCBS of Illinois | Illinois | bcbsil.com |
K5E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5F | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K5G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5N | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K5O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5P | BCBS of Illinois | Illinois | bcbsil.com |
K5Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5V | BCBS of Texas | Texas | bcbstx.com |
K5W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K5Y | Anthem BCBS of Kentucky | Kentucky | anthem.com/contact-us/kentucky |
K5Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6A | Empire BCBS of New York | New York | empireblue.com |
K6B | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K6C | Empire BCBS of New York | New York | empireblue.com |
K6D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6M | Anthem BCBS of Virginia | Virginia | abcbsva.anthem.com |
K6N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K6Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7A | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7B | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7C | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7D | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7E | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7F | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7M | Anthem BCBS of Ohio | Ohio | anthem.com/contact-us/ohio |
K7N | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K7O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7S | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K7T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7X | BCBS of Texas | Texas | bcbstx.com |
K7Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K7Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8A | Anthem BCBS of Colorado | Colorado | anthem.com/contact-us/colorado |
K8B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8C | Anthem Blue Cross of California | California | anthem.com/ca |
K8D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8M | Anthem Blue Cross of California | California | anthem.com/ca |
K8N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8P | BCBS of Texas | Texas | bcbstx.com |
K8Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K8Y | BCBS of Arizona | Arizona | azblue.com |
K8Z | BCBS of Arizona | Arizona | azblue.com |
K9A | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K9B | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K9C | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K9D | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K9E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9G | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K9H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9K | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K9L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9M | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K9N | Anthem BCBS of Georgia | Georgia | anthem.com/contact-us/georgia |
K9O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9W | Anthem BCBS of Indiana | Indiana | providers.anthem.com/indiana-provider/home |
K9X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
K9Y | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com |
K9Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
Conclusion
Understanding BCBS Alpha Numeric Prefixes is a key element in managing medical billing effectively. By ensuring you utilize these prefixes correctly, healthcare providers can enhance their billing processes, reduce claim denials, and maintain efficient revenue cycles. If you need assistance, don’t hesitate to reach out to Texmed Billing Solutions.
If you have further questions or require assistance with medical billing, feel free to contact us at support@texmed.us.