The BCBS Alpha Numeric Prefix O2A to O9Z helps healthcare providers, medical billers, and revenue cycle teams identify the correct Blue Cross Blue Shield payer associated with a patient’s insurance plan. A BCBS alpha numeric prefix appears at the beginning of the member ID and determines which BCBS organization handles claim processing.
BCBS Alpha Numeric Prefix O2A to O9Z
In modern medical billing workflows, this prefix acts as a routing key. When billing teams verify the prefix during eligibility checks, they ensure claims are directed to the correct payer. As a result, providers reduce claim denials, improve clean claim rates, and maintain a smoother revenue cycle.
For a complete directory of all BCBS prefixes, you can check our BCBS Prefix Tool or BCBS Prefix list.
BCBS Alpha Numeric Prefix Finder – O2A to O9Z
The BCBS prefix lookup process allows billing professionals to confirm payer details quickly and accurately. Instead of assuming payer information based on patient location, providers can rely on the prefix to identify the exact BCBS organization responsible for the policy.
Moreover, prefix verification improves billing accuracy. When staff validate prefixes such as O2F, O3G, or O6H, they reduce claim rejections. Consequently, this step improves reimbursement timelines and strengthens the overall billing workflow.
BCBS Alpha Numeric Prefix O2A to O9Z List
In the table below here is a complete list of BCBS plans having prefix ranges between O2A to O9Z.
| BCBS Prefix | State | Company Name | Types Of Health Plans |
|---|---|---|---|
| O2A | California | Anthem Blue-Cross | EPO, POS, HDHP |
| O2B | – | Unallocated/ Prefix Not Assigned | |
| O2C | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Medicaid, Medicare Advantage, HDHP |
| O2D | – | Unallocated/ Prefix Not Assigned | |
| O2E | California | Anthem Blue-Cross | POS, HDHP, Medicare Advantage |
| O2F | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | EPO, Medicaid, HMO |
| O2G | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Traditional Indemnity, PPO, HDHP |
| O2H | – | Unallocated/ Prefix Not Assigned | |
| O2I | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | HDHP, EPO, Medicaid |
| O2J | – | Unallocated/ Prefix Not Assigned | |
| O2K | – | Unallocated/ Prefix Not Assigned | |
| O2L | – | Unallocated/ Prefix Not Assigned | |
| O2M | Georgia | Anthem Blue-Cross Blue-Shield of Georgia | Traditional Indemnity, Medicare Advantage, PPO |
| O2N | West Virginia | Highmark Blue-Cross Blue-Shield of West Virginia | POS, HDHP, EPO |
| O2O | – | Unallocated/ Prefix Not Assigned | |
| O2P | – | Unallocated/ Prefix Not Assigned | |
| O2Q | – | Unallocated/ Prefix Not Assigned | |
| O2R | – | Unallocated/ Prefix Not Assigned | |
| O2S | Massachusetts | Blue-Cross Blue-Shield of Massachusetts | POS, Medicare Advantage, EPO |
| O2T | Minnesota | Blue-Cross Blue-Shield of Minnesota | HMO, PPO, HDHP |
| O2U | – | Unallocated/ Prefix Not Assigned | |
| O2V | – | Unallocated/ Prefix Not Assigned | |
| O2W | – | Unallocated/ Prefix Not Assigned | |
| O2X | – | Unallocated/ Prefix Not Assigned | |
| O2Y | – | Unallocated/ Prefix Not Assigned | |
| O2Z | – | Unallocated/ Prefix Not Assigned | |
| O3A | – | Unallocated/ Prefix Not Assigned | |
| O3B | Alaska | Premera Blue-Cross Blue-Shield of Alaska | HMO, HDHP, Medicare Advantage |
| O3C | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | PPO, Medicaid, Traditional Indemnity |
| O3D | – | Unallocated/ Prefix Not Assigned | |
| O3E | – | Unallocated/ Prefix Not Assigned | |
| O3F | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | Medicaid, Traditional Indemnity, HDHP |
| O3G | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | EPO, POS, Medicare Advantage |
| O3H | – | Unallocated/ Prefix Not Assigned | |
| O3I | – | Unallocated/ Prefix Not Assigned | |
| O3J | – | Unallocated/ Prefix Not Assigned | |
| O3K | – | Unallocated/ Prefix Not Assigned | |
| O3L | – | Unallocated/ Prefix Not Assigned | |
| O3M | – | Unallocated/ Prefix Not Assigned | |
| O3N | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | Traditional Indemnity, PPO, EPO |
| O3O | – | Unallocated/ Prefix Not Assigned | |
| O3P | – | Unallocated/ Prefix Not Assigned | |
| O3Q | – | Unallocated/ Prefix Not Assigned | |
| O3R | – | Unallocated/ Prefix Not Assigned | |
| O3S | – | Unallocated/ Prefix Not Assigned | |
| O3T | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | POS, EPO, PPO |
| O3U | – | Unallocated/ Prefix Not Assigned | |
| O3V | Alaska | Premera Blue-Cross Blue-Shield of Alaska | Medicare Advantage, Traditional Indemnity, POS |
| O3W | Georgia | Anthem Blue-Cross Blue-Shield of Georgia | HDHP, EPO, HMO |
| O3X | – | Unallocated/ Prefix Not Assigned | |
| O3Y | – | Unallocated/ Prefix Not Assigned | |
| O3Z | – | Unallocated/ Prefix Not Assigned | |
| O4A | – | Unallocated/ Prefix Not Assigned | |
| O4B | – | Unallocated/ Prefix Not Assigned | |
| O4C | – | Unallocated/ Prefix Not Assigned | |
| O4D | – | Unallocated/ Prefix Not Assigned | |
| O4E | – | Unallocated/ Prefix Not Assigned | |
| O4F | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | PPO, Traditional Indemnity, Medicaid |
| O4G | – | Unallocated/ Prefix Not Assigned | |
| O4H | – | Unallocated/ Prefix Not Assigned | |
| O4I | – | Unallocated/ Prefix Not Assigned | |
| O4J | – | Unallocated/ Prefix Not Assigned | |
| O4K | – | Unallocated/ Prefix Not Assigned | |
| O4L | – | Unallocated/ Prefix Not Assigned | |
| O4M | – | Unallocated/ Prefix Not Assigned | |
| O4N | – | Unallocated/ Prefix Not Assigned | |
| O4O | – | Unallocated/ Prefix Not Assigned | |
| O4P | – | Unallocated/ Prefix Not Assigned | |
| O4Q | – | Unallocated/ Prefix Not Assigned | |
| O4R | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | POS, HDHP, Medicaid |
| O4S | – | Unallocated/ Prefix Not Assigned | |
| O4T | – | Unallocated/ Prefix Not Assigned | |
| O4U | – | Unallocated/ Prefix Not Assigned | |
| O4V | – | Unallocated/ Prefix Not Assigned | |
| O4W | – | Unallocated/ Prefix Not Assigned | |
| O4X | – | Unallocated/ Prefix Not Assigned | |
| O4Y | – | Unallocated/ Prefix Not Assigned | |
| O4Z | – | Unallocated/ Prefix Not Assigned | |
| O5A | – | Unallocated/ Prefix Not Assigned | |
| O5B | – | Unallocated/ Prefix Not Assigned | |
| O5C | – | Unallocated/ Prefix Not Assigned | |
| O5D | – | Unallocated/ Prefix Not Assigned | |
| O5E | – | Unallocated/ Prefix Not Assigned | |
| O5F | – | Unallocated/ Prefix Not Assigned | |
| O5G | – | Unallocated/ Prefix Not Assigned | |
| O5H | – | Unallocated/ Prefix Not Assigned | |
| O5I | – | Unallocated/ Prefix Not Assigned | |
| O5J | – | Unallocated/ Prefix Not Assigned | |
| O5K | – | Unallocated/ Prefix Not Assigned | |
| O5L | – | Unallocated/ Prefix Not Assigned | |
| O5M | – | Unallocated/ Prefix Not Assigned | |
| O5N | – | Unallocated/ Prefix Not Assigned | |
| O5O | – | Unallocated/ Prefix Not Assigned | |
| O5P | – | Unallocated/ Prefix Not Assigned | |
| O5Q | – | Unallocated/ Prefix Not Assigned | |
| O5R | – | Unallocated/ Prefix Not Assigned | |
| O5S | – | Unallocated/ Prefix Not Assigned | |
| O5T | – | Unallocated/ Prefix Not Assigned | |
| O5U | – | Unallocated/ Prefix Not Assigned | |
| O5V | – | Unallocated/ Prefix Not Assigned | |
| O5W | – | Unallocated/ Prefix Not Assigned | |
| O5X | – | Unallocated/ Prefix Not Assigned | |
| O5Y | – | Unallocated/ Prefix Not Assigned | |
| O5Z | – | Unallocated/ Prefix Not Assigned | |
| O6A | – | Unallocated/ Prefix Not Assigned | |
| O6B | – | Unallocated/ Prefix Not Assigned | |
| O6C | – | Unallocated/ Prefix Not Assigned | |
| O6D | – | Unallocated/ Prefix Not Assigned | |
| O6E | – | Unallocated/ Prefix Not Assigned | |
| O6F | – | Unallocated/ Prefix Not Assigned | |
| O6G | – | Unallocated/ Prefix Not Assigned | |
| O6H | Alaska | Premera Blue-Cross of Alaska | Medicare Advantage, PPO, Medicaid |
| O6I | – | Unallocated/ Prefix Not Assigned | |
| O6J | – | Unallocated/ Prefix Not Assigned | |
| O6K | – | Unallocated/ Prefix Not Assigned | |
| O6L | – | Unallocated/ Prefix Not Assigned | |
| O6M | – | Unallocated/ Prefix Not Assigned | |
| O6N | – | Unallocated/ Prefix Not Assigned | |
| O6O | – | Unallocated/ Prefix Not Assigned | |
| O6P | – | Unallocated/ Prefix Not Assigned | |
| O6Q | – | Unallocated/ Prefix Not Assigned | |
| O6R | – | Unallocated/ Prefix Not Assigned | |
| O6S | – | Unallocated/ Prefix Not Assigned | |
| O6T | – | Unallocated/ Prefix Not Assigned | |
| O6U | – | Unallocated/ Prefix Not Assigned | |
| O6V | – | Unallocated/ Prefix Not Assigned | |
| O6W | – | Unallocated/ Prefix Not Assigned | |
| O6X | – | Unallocated/ Prefix Not Assigned | |
| O6Y | – | Unallocated/ Prefix Not Assigned | |
| O6Z | – | Unallocated/ Prefix Not Assigned | |
| O7A | – | Unallocated/ Prefix Not Assigned | |
| O7B | – | Unallocated/ Prefix Not Assigned | |
| O7C | – | Unallocated/ Prefix Not Assigned | |
| O7D | – | Unallocated/ Prefix Not Assigned | |
| O7E | – | Unallocated/ Prefix Not Assigned | |
| O7F | – | Unallocated/ Prefix Not Assigned | |
| O7G | – | Unallocated/ Prefix Not Assigned | |
| O7H | – | Unallocated/ Prefix Not Assigned | |
| O7I | – | Unallocated/ Prefix Not Assigned | |
| O7J | – | Unallocated/ Prefix Not Assigned | |
| O7K | – | Unallocated/ Prefix Not Assigned | |
| O7L | – | Unallocated/ Prefix Not Assigned | |
| O7M | – | Unallocated/ Prefix Not Assigned | |
| O7N | – | Unallocated/ Prefix Not Assigned | |
| O7O | – | Unallocated/ Prefix Not Assigned | |
| O7P | – | Unallocated/ Prefix Not Assigned | |
| O7Q | – | Unallocated/ Prefix Not Assigned | |
| O7R | – | Unallocated/ Prefix Not Assigned | |
| O7S | – | Unallocated/ Prefix Not Assigned | |
| O7T | – | Unallocated/ Prefix Not Assigned | |
| O7U | – | Unallocated/ Prefix Not Assigned | |
| O7V | – | Unallocated/ Prefix Not Assigned | |
| O7W | – | Unallocated/ Prefix Not Assigned | |
| O7X | – | Unallocated/ Prefix Not Assigned | |
| O7Y | – | Unallocated/ Prefix Not Assigned | |
| O7Z | – | Unallocated/ Prefix Not Assigned | |
| O8A | – | Unallocated/ Prefix Not Assigned | |
| O8B | – | Unallocated/ Prefix Not Assigned | |
| O8C | – | Unallocated/ Prefix Not Assigned | |
| O8D | – | Unallocated/ Prefix Not Assigned | |
| O8E | – | Unallocated/ Prefix Not Assigned | |
| O8F | – | Unallocated/ Prefix Not Assigned | |
| O8G | – | Unallocated/ Prefix Not Assigned | |
| O8H | – | Unallocated/ Prefix Not Assigned | |
| O8I | – | Unallocated/ Prefix Not Assigned | |
| O8J | – | Unallocated/ Prefix Not Assigned | |
| O8K | – | Unallocated/ Prefix Not Assigned | |
| O8L | – | Unallocated/ Prefix Not Assigned | |
| O8M | – | Unallocated/ Prefix Not Assigned | |
| O8N | – | Unallocated/ Prefix Not Assigned | |
| O8O | – | Unallocated/ Prefix Not Assigned | |
| O8P | – | Unallocated/ Prefix Not Assigned | |
| O8Q | – | Unallocated/ Prefix Not Assigned | |
| O8R | – | Unallocated/ Prefix Not Assigned | |
| O8S | – | Unallocated/ Prefix Not Assigned | |
| O8T | – | Unallocated/ Prefix Not Assigned | |
| O8U | – | Unallocated/ Prefix Not Assigned | |
| O8V | – | Unallocated/ Prefix Not Assigned | |
| O8W | – | Unallocated/ Prefix Not Assigned | |
| O8X | – | Unallocated/ Prefix Not Assigned | |
| O8Y | – | Unallocated/ Prefix Not Assigned | |
| O8Z | – | Unallocated/ Prefix Not Assigned | |
| O9A | – | Unallocated/ Prefix Not Assigned | |
| O9B | – | Unallocated/ Prefix Not Assigned | |
| O9C | – | Unallocated/ Prefix Not Assigned | |
| O9D | – | Unallocated/ Prefix Not Assigned | |
| O9E | – | Unallocated/ Prefix Not Assigned | |
| O9F | – | Unallocated/ Prefix Not Assigned | |
| O9G | – | Unallocated/ Prefix Not Assigned | |
| O9H | – | Unallocated/ Prefix Not Assigned | |
| O9I | – | Unallocated/ Prefix Not Assigned | |
| O9J | – | Unallocated/ Prefix Not Assigned | |
| O9K | Minnesota | Blue-Cross Blue-Shield of Minnesota | PPO, HDHP, Medicare Advantage |
| O9L | Minnesota | Blue-Cross Blue-Shield of Minnesota | Medicaid, EPO, HMO |
| O9M | – | Unallocated/ Prefix Not Assigned | |
| O9N | – | Unallocated/ Prefix Not Assigned | |
| O9O | – | Unallocated/ Prefix Not Assigned | |
| O9P | – | Unallocated/ Prefix Not Assigned | |
| O9Q | – | Unallocated/ Prefix Not Assigned | |
| O9R | – | Unallocated/ Prefix Not Assigned | |
| O9S | – | Unallocated/ Prefix Not Assigned | |
| O9T | – | Unallocated/ Prefix Not Assigned | |
| O9U | – | Unallocated/ Prefix Not Assigned | |
| O9V | – | Unallocated/ Prefix Not Assigned | |
| O9W | – | Unallocated/ Prefix Not Assigned | |
| O9X | – | Unallocated/ Prefix Not Assigned | |
| O9Y | – | Unallocated/ Prefix Not Assigned | |
| O9Z | – | Unallocated/ Prefix Not Assigned |
Common BCBS Alpha Numeric Prefixes in the O2A to O9Z Range
In the below section i have listed some of the most common bcbs prefixes in O2A to O9Z Range.
BCBS Prefix O2F – Illinois
| BCBS Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| O2F | Illinois | BCBS of Illinois | HMO, PPO, Medicaid |
The O2F BCBS Prefix identifies coverage administered by Blue Cross Blue Shield of Illinois. Patients with BCBS alpha numeric prefix O2F may enroll in HMO, PPO, or Medicaid plans.
BCBS prefix O2F is commonly used in Illinois-based policies.
BCBS alpha numeric prefix O2F helps billing teams determine the correct payer routing.
Therefore, verifying BCBS prefix O2F ensures claims are submitted accurately and reduces administrative corrections.
O2N BCBS Prefix – Texas
| BCBS Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| O2N | Texas | Blue Cross Blue Shield of Texas | PPO, HMO, HDHP |
The O2N BCBS Prefix belongs to Blue Cross Blue Shield of Texas. Patients carrying BCBS alpha numeric prefix O2N may have PPO, HMO, or High-Deductible Health Plans.
BCBS prefix O2N frequently appears in employer-sponsored insurance plans.
BCBS alpha numeric prefix O2N supports accurate payer identification.
Because Texas BCBS operates multiple networks, verifying BCBS prefix O2N ensures claims are routed correctly. For comparison, you can also review BCBS Alpha Numeric Prefix N2A to N9Z.
BCBS Prefix O9U – California
| BCBS Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| O9U | California | Anthem Blue Cross | HMO, EPO, POS |
The O9U BCBS Prefix represents Anthem Blue Cross in California. Patients with BCBS alpha numeric prefix O9U may enroll in HMO, EPO, or POS plans.
BCBS prefix O9U is widely used in California commercial policies.
Anthem prefix O9U requires careful verification during eligibility checks.
Since Anthem operates across multiple regions, verifying BCBS prefix O9U ensures claims are processed accurately. For broader comparison, you can explore BCBS Alpha Numeric Prefix M2A to M9Z.
BCBS Prefix O6H – Pennsylvania
| BCBS Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| O6H | Pennsylvania | Highmark BCBS of Pennsylvania | PPO, HDHP, EPO |
The O6H BCBS Prefix identifies coverage under Highmark Blue Cross Blue Shield of Pennsylvania. Patients carrying BCBS alpha numeric prefix O6H may enroll in PPO, High-Deductible Health Plans, or EPO coverage.
BCBS prefix O6H plays a key role in identifying the correct Highmark payer system.
BCBS alpha numeric prefix O6H ensures proper claim routing.
As a result, verifying BCBS prefix O6H helps reduce payer confusion and improves claim acceptance rates.
BCBS Prefix O3G – New York
| BCBS Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| O3G | New York | Empire BCBS of New York | PPO, Medicare Advantage, EPO |
The O3G BCBS Prefix belongs to Empire Blue Cross Blue Shield of New York. Patients with BCBS alpha numeric prefix O3G may have PPO, Medicare Advantage, or EPO plans.
BCBS prefix O3G is commonly seen in both commercial and Medicare policies.
BCBS alpha numeric prefix O3G helps billing teams identify payer systems quickly.
Consequently, verifying BCBS prefix O3G ensures accurate claim submission and faster reimbursements.
Why BCBS Prefix Verification Is Essential
Although the BCBS prefix contains only three characters, it plays a critical role in claim processing. Therefore, billing teams must verify it during every eligibility check.
Accurate prefix validation helps providers:
- Route claims to the correct payer
- Reduce denials and rejections
- Improve reimbursement timelines
- Minimize administrative workload
Common Billing Errors with O-Series Prefixes
Even experienced billing teams can encounter issues. However, most errors occur due to:
- Assuming payer based on patient location
- Skipping prefix verification
- Confusing Anthem-managed BCBS plans
Real-Life Example
A billing team received a patient with BCBS prefix O9U and initially assumed the payer based on location. However, after verifying the prefix, they identified the correct Anthem network.
As a result, they corrected the payer before submission. Consequently, the claim processed successfully without rejection.
FAQs – BCBS Alpha Numeric Prefix O2A to O9Z
Q. What is a BCBS alpha numeric prefix?
It is a three-character code that identifies the BCBS organization responsible for processing claims.
Q. Why is prefix verification important?
It ensures claims are routed correctly and reduces denials.
Q. Can prefixes overlap across states?
Yes. Therefore, always verify prefixes before submitting claims.
Conclusion
The BCBS Alpha Numeric Prefix O2A to O9Z enables healthcare providers and billing professionals to accurately identify the correct BCBS payer. By verifying prefixes such as O2F, O3G, or O6H, billing teams can reduce errors, improve claim acceptance rates, and streamline revenue cycle operations.
To further enhance billing efficiency, you can explore professional services like for eligibility verification, claim submission, and accounts receivable management.
