The BCBS Prefix List OAA to OZZ helps medical billers and healthcare providers identify the correct Blue Cross Blue Shield plan linked to a member’s insurance ID. Every BCBS member ID starts with a three-letter alpha or alpha numeric prefix, and that prefix determines the issuing BCBS company, state, and plan type. Because the BCBS network includes many regional companies across the United States, prefix verification is essential for accurate claim submission.
BCBS Prefix List OAA to OZZ
In medical billing workflows, verifying the BCBS Alpha Prefix from OAA to OZZ ensures that claims are routed to the correct payer the first time. If the prefix is entered incorrectly or verified improperly, the claim may be delayed or rejected. Therefore, many billing professionals rely on structured prefix directories to confirm payer information before submitting claims.
For a full directory covering all prefix ranges, you can also review our complete BCBS prefix lookup guide here:
BCBS Prefix Finder – OAA to OZZ State & Plan Lookup
A BCBS Prefix Finder allows billing specialists to quickly identify which BCBS company issued a member’s plan. By entering or reviewing the three-letter prefix on the insurance ID card, billers can determine the correct payer, state, and plan category.
BCBS Prefix Lookup From OAA to OZZ
Below is a simplified lookup table for the BCBS Prefix from OAA to OZZ range.
| BCBS Prefix | State | Company Name | Types Of Health Plan |
|---|---|---|---|
| OAA | Massachusetts | Blue Cross Blue Shield of Massachusetts | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OAB | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, EPO, Medicare Advantage |
| OAC | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), HMO, POS |
| OAD | New York (Western) | BCBS of Western New York | EPO, Traditional Indemnity, Medicaid |
| OAE | Ohio | Anthem BCBS of Ohio | POS, High-Deductible Health Plan (HDHP), PPO |
| OAF | Virginia | Anthem BCBS of Virginia | Medicaid, Medicare Advantage, EPO |
| OAG | Colorado | Anthem BCBS of Colorado | HMO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OAH | New York | Empire BCBS of New York | High-Deductible Health Plan (HDHP), POS, PPO |
| OAI | California | Blue-Shield of California | Medicare Advantage, EPO, Traditional Indemnity |
| OAK | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, HMO, Medicaid |
| OAL | California | Blue-Shield of California | PPO, High-Deductible Health Plan (HDHP), POS |
| OAM | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, Medicare Advantage, Traditional Indemnity |
| OAN | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Medicaid, HMO |
| OAP | Kentucky | Anthem BCBS of Kentucky | Traditional Indemnity, PPO, EPO |
| OAQ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OAR | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, EPO, Traditional Indemnity |
| OAS | Indiana | Anthem BCBS of Indiana | High-Deductible Health Plan (HDHP), HMO, POS |
| OAT | Nebraska | BCBS of Nebraska | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OAU | Michigan | BCBS of Michigan | Traditional Indemnity, Medicaid, EPO |
| OAX | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | High-Deductible Health Plan (HDHP), POS, HMO |
| OAY | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Medicare Advantage, Traditional Indemnity, PPO |
| OAZ | Massachusetts | BCBS of Massachusetts | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| OBA | California | Anthem Blue-Cross | PPO, HMO, Traditional Indemnity |
| OBB | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OBC | Massachusetts | BCBS of Massachusetts | Medicaid, POS, PPO |
| OBD | South Carolina | Blue Cross Blue Shield of South Carolina | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| OBE | Michigan | BCBS of Michigan | EPO, Medicare Advantage, POS |
| OBF | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Traditional Indemnity, PPO |
| OBG | Tennessee | BCBS of Tennessee | Medicaid, EPO, HMO |
| OBH | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OBI | Minnesota | BCBS of Minnesota | Traditional Indemnity, PPO, Medicaid |
| OBJ | Alaska | Premera BCBS of Alaska | High-Deductible Health Plan (HDHP), EPO, HMO |
| OBL | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, Medicare Advantage, Traditional Indemnity |
| OBM | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OBN | Massachusetts | BCBS of Massachusetts | EPO, Traditional Indemnity, HMO |
| OBO | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), POS, PPO |
| OBP | California | Blue-Shield of California | Medicare Advantage, Medicaid, Traditional Indemnity |
| OBQ | California | Anthem Blue-Cross | PPO, EPO, High-Deductible Health Plan (HDHP) |
| OBR | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, Medicaid, POS |
| OBS | Idaho | Blue Cross of Idaho | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| OBT | Arizona | BCBS of Arizona | EPO, Traditional Indemnity, PPO |
| OBU | Alabama | BCBS of Alabama | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OBV | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OBW | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, PPO, HMO |
| OBX | Georgia | Anthem BCBS of Georgia | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| OBY | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | EPO, Traditional Indemnity, Medicare Advantage |
| OBZ | California | Blue Shield of California | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OCA | California | Anthem Blue-Cross | Medicare Advantage, HMO, EPO |
| OCB | Virginia | Anthem BCBS of Virginia | Traditional Indemnity, High-Deductible Health Plan (HDHP), POS |
| OCC | California | Blue Cross of California | PPO, EPO, Medicaid |
| OCD | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicare Advantage |
| OCF | Louisiana | BCBS of Louisiana | Medicaid, POS, PPO |
| OCG | South Dakota/Iowa | Wellmark BCBS | EPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OCH | New York (Western) | BCBS of Western New York | Medicare Advantage, PPO, HMO |
| OCI | Wisconsin | Anthem BCBS of Wisconsin | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OCJ | California | Blue Shield of California | Traditional Indemnity, EPO, PPO |
| OCK | South Carolina | Blue Cross Blue Shield of South Carolina | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OCL | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | POS, Traditional Indemnity, HMO |
| OCM | South Dakota/Iowa | Wellmark BCBS | PPO, EPO, High-Deductible Health Plan (HDHP) |
| OCN | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OCO | California | Blue-Shield of California | Medicare Advantage, PPO, Traditional Indemnity |
| OCP | Ohio | Anthem BCBS of Ohio | HMO, High-Deductible Health Plan (HDHP), EPO |
| OCQ | Pennsylvania | Independence Blue Cross | Traditional Indemnity, Medicaid, PPO |
| OCR | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OCS | Florida | BCBS of Florida | PPO, HMO, Traditional Indemnity |
| OCT | Idaho | Blue-Cross of Idaho | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OCU | Ohio | Anthem BCBS of Ohio | Medicare Advantage, EPO, PPO |
| OCV | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| OCW | California | Anthem Blue-Cross | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| OCX | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, Medicare Advantage, EPO |
| OCY | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OCZ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, HMO, Traditional Indemnity |
| ODA | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, High-Deductible Health Plan (HDHP), POS |
| ODB | Ohio | Anthem BCBS of Ohio | Medicaid, Traditional Indemnity, EPO |
| ODC | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, HMO |
| ODD | Nebraska | Blue Cross Blue Shield of Nebraska | POS, PPO, High-Deductible Health Plan (HDHP) |
| ODE | daho | Blue Cross of Idaho | EPO, Medicaid, Traditional Indemnity |
| ODF | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| ODH | California | Blue Shield of California | PPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| ODI | New York (Western) | BCBS of Western New York | HMO, Medicaid, EPO |
| ODJ | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), POS, PPO |
| ODK | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicare Advantage, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| ODL | Tennessee | BCBS of Tennessee | Medicaid, EPO, HMO |
| ODM | Arizona | BCBS of Arizona | POS, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| ODN | Tennessee | BCBS of Tennessee | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| ODO | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, Medicaid, POS |
| ODQ | Pennsylvania | Highmark BCBS of Pennsylvania | EPO, HMO, High-Deductible Health Plan (HDHP) |
| ODR | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| ODS | New York (Western) | BCBS of Western New York | Traditional Indemnity, Medicaid, EPO |
| ODT | Massachusetts | BCBS of Massachusetts | POS, High-Deductible Health Plan (HDHP), HMO |
| ODU | New York | Empire Blue Cross Blue Shield | PPO, Traditional Indemnity, Medicare Advantage |
| ODV | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| ODW | Michigan | BCBS of Michigan | HMO, POS, High-Deductible Health Plan (HDHP) |
| ODX | Alabama | BCBS of Alabama | Medicare Advantage, Traditional Indemnity, PPO |
| ODY | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| ODZ | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, POS |
| OEA | Virginia | Anthem BCBS of Virginia | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OEB | Virginia | Anthem BCBS of Virginia | Medicaid, EPO, Traditional Indemnity |
| OEC | New York | Excellus BCBS | High-Deductible Health Plan (HDHP), POS, HMO |
| OED | Virginia | Anthem BCBS of Virginia | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| OEE | Florida | BCBS of Florida | Traditional Indemnity, Medicaid, EPO |
| OEF | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OEG | Kansas City | BCBS of Kansas City | EPO, PPO, Traditional Indemnity |
| OEH | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), Medicaid, HMO |
| OEI | Nebraska | BCBS of Nebraska | Medicaid, PPO, Traditional Indemnity |
| OEJ | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OEK | Michigan | BCBS of Michigan | HMO, POS, Traditional Indemnity |
| OEL | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | EPO, High-Deductible Health Plan (HDHP), PPO |
| OEM | Virginia | Anthem BCBS of Virginia | Medicare Advantage, Medicaid, POS |
| OEN | Alabama | Blue Cross Blue Shield of Alabama | Traditional Indemnity, HMO, High-Deductible Health Plan (HDHP) |
| OEO | California | Blue Shield of California | PPO, EPO, Medicare Advantage |
| OEP | Pennsylvania | Capital BlueCross | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicaid |
| OEQ | Michigan | BCBS of Michigan | POS, HMO, High-Deductible Health Plan (HDHP) |
| OER | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, PPO, Medicaid |
| OES | California | Anthem Blue-Cross | Medicare Advantage, High-Deductible Health Plan (HDHP), EPO |
| OET | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | HMO, Traditional Indemnity, POS |
| OEU | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OEV | Pennsylvania | Highmark Blue-Shield of Pennsylvania | PPO, Medicare Advantage, Traditional Indemnity |
| OEW | North Dakota | BCBS of North Dakota | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| OEX | California | Blue Cross of California | EPO, POS, PPO |
| OEY | Michigan | BCBS of Michigan | Traditional Indemnity, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OEZ | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), EPO, HMO |
| OFA | Indiana | Anthem BCBS of Indiana | Medicaid, Traditional Indemnity, POS |
| OFB | Pennsylvania | Capital Blue-Cross of Pennsylvania | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OFC | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| OFD | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OFF | New York (Western) | BCBS of Western New York | Traditional Indemnity, Medicare Advantage, PPO |
| OFG | Rhode Island | BCBS of Rhode Island | HMO, EPO, High-Deductible Health Plan (HDHP) |
| OFH | Ohio | Anthem BCBS of Ohio | Medicaid, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OFI | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | POS, PPO, Medicare Advantage |
| OFJ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, EPO |
| OFL | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, Medicaid, POS |
| OFM | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OFN | Tennessee | BCBS of Tennessee | Medicare Advantage, EPO, HMO |
| OFO | California | Anthem Blue-Cross | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OFP | California | Anthem Blue-Cross | Traditional Indemnity, PPO, Medicare Advantage |
| OFQ | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| OFR | Virginia | Anthem BCBS of Virginia | POS, Traditional Indemnity, HMO |
| OFS | New York (Western) | BCBS of Western New York | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OFT | California | Blue-Shield of California | Medicaid, EPO, Traditional Indemnity |
| OFU | Michigan | BCBS of Michigan | HMO, High-Deductible Health Plan (HDHP), POS |
| OFV | Michigan | BCBS of Michigan | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OFW | Michigan | BCBS of Michigan | Traditional Indemnity, Medicaid, EPO |
| OFX | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), POS, HMO |
| OFY | California | Blue-Shield of California | Medicare Advantage, PPO, Traditional Indemnity |
| OFZ | Michigan | BCBS of Michigan | Medicaid, High-Deductible Health Plan (HDHP), EPO |
| OGB | Pennsylvania | Independence Blue Cross | Traditional Indemnity, HMO, High-Deductible Health Plan (HDHP) |
| OGC | South Dakota/Iowa | Wellmark BCBS | POS, PPO, Medicaid |
| OGD | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), Medicare Advantage, Traditional Indemnity |
| OGE | Oklahoma | Blue Cross Blue Shield of Oklahoma | HMO, EPO, POS |
| OGF | Michigan | BCBS of Michigan | Medicaid, High-Deductible Health Plan (HDHP), PPO |
| OGG | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, Medicare Advantage, HMO |
| OGH | Georgia | Anthem BCBS of Georgia | EPO, High-Deductible Health Plan (HDHP), POS |
| OGI | Michigan | Blue Cross Blue Shield of Michigan | Medicaid, Traditional Indemnity, PPO |
| OGJ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| OGK | Michigan | BCBS of Michigan | PPO, EPO, Traditional Indemnity |
| OGL | South Dakota/Iowa | Wellmark BCBS | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| OGM | Alaska | Premera BCBS of Alaska | Traditional Indemnity, Medicare Advantage, EPO |
| OGN | Kentucky | Anthem BCBS of Kentucky | High-Deductible Health Plan (HDHP), PPO, HMO |
| OGO | Michigan | BCBS of Michigan | Medicaid, POS, Traditional Indemnity |
| OGP | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OGQ | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | HMO, PPO, Medicaid |
| OGR | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), Traditional Indemnity, POS |
| OGS | Louisiana | BCBS of Louisiana | Medicare Advantage, EPO, HMO |
| OGT | New York (Western) | BCBS of Western New York | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OGU | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, POS, Medicare Advantage |
| OGV | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | High-Deductible Health Plan (HDHP), HMO, EPO |
| OGW | Louisiana | BCBS of Louisiana | POS, PPO, Medicaid |
| OGX | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicare Advantage, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OGY | Washington | Premera Blue Cross | EPO, HMO, High-Deductible Health Plan (HDHP) |
| OGZ | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Medicaid, POS, Traditional Indemnity |
| OHA | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OHB | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, EPO, HMO |
| OHC | Michigan | BCBS of Michigan | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| OHD | Texas | BCBS of Texas | PPO, Traditional Indemnity, Medicare Advantage |
| OHE | Rhode Island | BCBS of Rhode Island | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OHF | Virginia | Anthem BCBS of Virginia | HMO, POS, High-Deductible Health Plan (HDHP) |
| OHG | Virginia | Anthem BCBS of Virginia | Medicare Advantage, PPO, Traditional Indemnity |
| OHH | Indiana | Anthem BCBS of Indiana | EPO, High-Deductible Health Plan (HDHP), HMO |
| OHI | Louisiana | BCBS of Louisiana | Medicaid, Traditional Indemnity, POS |
| OHJ | Kentucky | Anthem BCBS of Kentucky | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| OHK | South Dakota/Iowa | Wellmark BCBS | EPO, HMO, Traditional Indemnity |
| OHL | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| OHM | New York (Northeastern) | Blue-Shield of Northeastern New York | PPO, Medicare Advantage, Traditional Indemnity |
| OHN | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OHO | Ohio | Anthem BCBS of Ohio | HMO, Traditional Indemnity, POS |
| OHP | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OHR | Colorado | Anthem BCBS of Colorado | Traditional Indemnity, Medicaid, HMO |
| OHS | Ohio | Anthem BCBS of Ohio | POS, EPO, High-Deductible Health Plan (HDHP) |
| OHT | Ohio | Anthem BCBS of Ohio | PPO, Medicare Advantage, Traditional Indemnity |
| OHU | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), HMO, Medicaid |
| OHV | Rhode Island | BCBS of Rhode Island | EPO, POS, High-Deductible Health Plan (HDHP) |
| OHW | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, PPO, Medicare Advantage |
| OHX | Rhode Island | BCBS of Rhode Island | Medicaid, High-Deductible Health Plan (HDHP), EPO |
| OHY | Michigan | BCBS of Michigan | HMO, Traditional Indemnity, POS |
| OHZ | Rhode Island | BCBS of Rhode Island | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OIA | Idaho | Blue Cross of Idaho | Medicare Advantage, EPO, High-Deductible Health Plan (HDHP) |
| OIB | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, POS, HMO |
| OIC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| OID | Idaho | Blue-Cross of Idaho | EPO, Medicare Advantage, Traditional Indemnity |
| OIF | Idaho | Blue Cross of Idaho | POS, Traditional Indemnity, PPO |
| OIG | Pennsylvania | Highmark BCBS of Pennsylvania | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| OIH | Idaho | Blue Cross of Idaho | Medicare Advantage, HMO, Traditional Indemnity |
| OII | Michigan | BCBS of Michigan | PPO, EPO, High-Deductible Health Plan (HDHP) |
| OIJ | Michigan | BCBS of Michigan | Medicaid, POS, Traditional Indemnity |
| OIK | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), PPO |
| OIL | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, Medicare Advantage, Medicaid |
| OIM | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| OIN | Pennsylvania | Highmark BCBS of Pennsylvania | POS, EPO, Medicare Advantage |
| OIO | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, Traditional Indemnity |
| OIP | California | Blue-Shield of California | Medicaid, PPO, EPO |
| OIQ | Michigan | BCBS of Michigan | Medicare Advantage, High-Deductible Health Plan (HDHP), POS |
| OIR | Pennsylvania | Highmark BCBS of Pennsylvania | Traditional Indemnity, HMO, Medicaid |
| OIS | New York (Western) | BCBS of Western New York | EPO, High-Deductible Health Plan (HDHP), PPO |
| OIT | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, POS |
| OIU | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OIV | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, EPO |
| OIW | Michigan | BCBS of Michigan | POS, Traditional Indemnity, PPO |
| OIX | Michigan | BCBS of Michigan | Medicare Advantage, Medicaid, High-Deductible Health Plan (HDHP) |
| OIY | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| OIZ | California | Anthem Blue-Cross | PPO, POS, Medicaid |
| OJA | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OJB | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, HMO, PPO |
| OJC | South Dakota/Iowa | Wellmark BCBS | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OJE | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, Medicare Advantage |
| OJF | Michigan | BCBS of Michigan | POS, High-Deductible Health Plan (HDHP), Medicaid |
| OJG | Wisconsin | Anthem BCBS of Wisconsin | PPO, EPO, Traditional Indemnity |
| OJH | Georgia | Blue Cross Blue Shield of Georgia | High-Deductible Health Plan (HDHP), HMO, Medicare Advantage |
| OJI | Michigan | BCBS of Michigan | Medicaid, POS, PPO |
| OJJ | Michigan | BCBS of Michigan | Traditional Indemnity, EPO, High-Deductible Health Plan (HDHP) |
| OJK | Michigan | BCBS of Michigan | Medicare Advantage, HMO, Traditional Indemnity |
| OJL | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OJM | Missouri | Anthem BCBS of Missouri | EPO, POS, Medicare Advantage |
| OJN | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| OJO | Michigan | BCBS of Michigan | Medicaid, PPO, EPO |
| OJP | Rhode Island | BCBS of Rhode Island | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| OJQ | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, PPO |
| OJR | South Dakota/Iowa | Wellmark BCBS | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| OJS | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | PPO, Traditional Indemnity, Medicare Advantage |
| OJT | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), POS, EPO |
| OJV | Michigan | BCBS of Michigan | Medicaid, HMO, Traditional Indemnity |
| OJW | Oregon/Idaho/Utah/Washington | Regence BCBS | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| OJX | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, POS |
| OJY | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, HMO |
| OJZ | Michigan | Blue Cross Blue Shield of Michigan | PPO, Medicare Advantage, Traditional Indemnity |
| OKA | Minnesota | BCBS of Minnesota | High-Deductible Health Plan (HDHP), EPO, POS |
| OKB | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Medicaid, PPO, HMO |
| OKC | Oklahoma | BCBS of Oklahoma | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OKD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, PPO, Medicaid |
| OKE | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | High-Deductible Health Plan (HDHP), HMO, POS |
| OKF | Michigan | BCBS of Michigan | Medicare Advantage, Traditional Indemnity, EPO |
| OKG | Michigan | BCBS of Michigan | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OKH | California | Anthem Blue-Cross | Traditional Indemnity, POS, HMO |
| OKI | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OKJ | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, Medicaid |
| OKK | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, HMO |
| OKL | Arkansas | Arkansas BCBS | Medicare Advantage, POS, PPO |
| OKM | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicaid, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OKN | Michigan | BCBS of Michigan | POS, EPO, PPO |
| OKO | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), HMO |
| OKP | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, Medicaid, POS |
| OKQ | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OKR | Colorado | Anthem BCBS of Colorado | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OKS | New York (Western) | BCBS of Western New York | Traditional Indemnity, Medicaid, EPO |
| OKT | Ohio | Anthem BCBS of Ohio | HMO, PPO, High-Deductible Health Plan (HDHP) |
| OKU | Michigan | BCBS of Michigan | Medicare Advantage, Traditional Indemnity, POS |
| OKV | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, PPO |
| OKW | California | Anthem Blue-Cross | Medicaid, Traditional Indemnity, HMO |
| OKX | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| OKY | Michigan | BCBS of Michigan | PPO, EPO, Traditional Indemnity |
| OKZ | Michigan | BCBS of Michigan | Medicaid, High-Deductible Health Plan (HDHP), HMO |
| OLA | Kansas City | BCBS of Kansas City | Traditional Indemnity, PPO, Medicare Advantage |
| OLB | South Dakota/Iowa | Wellmark BCBS | EPO, POS, High-Deductible Health Plan (HDHP) |
| OLD | California | Blue-Shield of California | Medicaid, PPO, Traditional Indemnity |
| OLF | California | Blue Cross of California | High-Deductible Health Plan (HDHP), EPO, Medicare Advantage |
| OLG | Alaska | Premera BCBS of Alaska | POS, HMO, High-Deductible Health Plan (HDHP) |
| OLH | Arizona | BCBS of Arizona | Traditional Indemnity, PPO, EPO |
| OLI | Michigan | BCBS of Michigan | Medicare Advantage, High-Deductible Health Plan (HDHP), Medicaid |
| OLK | Tennessee | BCBS of Tennessee | PPO, HMO, Traditional Indemnity |
| OLL | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | High-Deductible Health Plan (HDHP), POS, Medicare Advantage |
| OLM | Arkansas | Arkansas BCBS | Medicaid, Traditional Indemnity, EPO |
| OLN | Alabama | BCBS of Alabama | PPO, High-Deductible Health Plan (HDHP), HMO |
| OLO | California | Blue Shield of California | Medicare Advantage, Traditional Indemnity, POS |
| OLP | Western New York | BCBS of Western New York | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OLQ | Michigan | BCBS of Michigan | PPO, HMO, Traditional Indemnity |
| OLR | Virginia | Blue Cross Blue Shield of South Carolina | POS, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OLS | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, Medicaid, EPO |
| OLT | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), PPO, HMO |
| OLU | Colorado | Anthem BCBS of Colorado | Medicaid, POS, Traditional Indemnity |
| OLV | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OLW | New York (Western) | BCBS of Western New York | EPO, HMO, Traditional Indemnity |
| OLX | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OLY | Michigan | BCBS of Michigan | Medicare Advantage, PPO, Traditional Indemnity |
| OLZ | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), HMO |
| OMA | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, POS, PPO |
| OMB | Ohio | Anthem BCBS of Ohio | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OMD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, EPO, Traditional Indemnity |
| OME | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), HMO, Medicaid |
| OMF | California | Blue Cross of California | Medicare Advantage, POS, High-Deductible Health Plan (HDHP) |
| OMG | Michigan | BCBS of Michigan | PPO, Medicaid, Traditional Indemnity |
| OMH | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OMI | Georgia | Anthem BCBS of Georgia | HMO, POS, PPO |
| OMJ | Pennsylvania | Independence Blue Cross | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicaid |
| OMK | Missouri | Anthem BCBS of Missouri | EPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OML | Florida | BCBS of Florida | Traditional Indemnity, HMO, POS |
| OMM | California | Blue Cross of California | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OMN | California | Blue Cross of California | Medicare Advantage, Traditional Indemnity, EPO |
| OMO | California | Blue Cross of California | High-Deductible Health Plan (HDHP), POS, HMO |
| OMP | Michigan | BCBS of Michigan | Medicaid, PPO, High-Deductible Health Plan (HDHP) |
| OMQ | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, EPO, Medicare Advantage |
| OMR | Rhode Island | BCBS of Rhode Island | PPO, High-Deductible Health Plan (HDHP), HMO |
| OMS | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OMT | Michigan | BCBS of Michigan | Traditional Indemnity, Medicare Advantage, HMO |
| OMU | Idaho | Blue Cross of Idaho | EPO, High-Deductible Health Plan (HDHP), POS |
| OMV | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, Medicaid, Traditional Indemnity |
| OMW | Nebraska | Blue Cross Blue Shield of Nebraska | High-Deductible Health Plan (HDHP), EPO, Medicare Advantage |
| OMX | Colorado | Anthem BCBS of Colorado | HMO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OMY | Vermont | Blue Cross Blue Shield of Vermont | Medicaid, POS, PPO |
| OMZ | California | Blue-Shield of California | Medicare Advantage, High-Deductible Health Plan (HDHP), EPO |
| ONA | Missouri | Anthem BCBS of Missouri | Traditional Indemnity, PPO, Medicaid |
| ONB | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), HMO, POS |
| ONC | Indiana | Anthem BCBS of Indiana | EPO, Traditional Indemnity, Medicare Advantage |
| OND | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| ONE | Indiana | Anthem BCBS of Indiana | Medicare Advantage, HMO, Traditional Indemnity |
| ONF | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | POS, EPO, High-Deductible Health Plan (HDHP) |
| ONG | Massachusetts | BCBS of Massachusetts | Medicaid, Traditional Indemnity, PPO |
| ONH | Minnesota | BCBS of Minnesota | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| ONI | Indiana | Anthem BCBS of Indiana | Traditional Indemnity, HMO, High-Deductible Health Plan (HDHP) |
| ONJ | South Dakota/Iowa | Wellmark BCBS | PPO, Medicaid, POS |
| ONK | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | High-Deductible Health Plan (HDHP), EPO, Traditional Indemnity |
| ONL | Ohio | Anthem BCBS of Ohio | Medicare Advantage, High-Deductible Health Plan (HDHP), HMO |
| ONN | South Carolina | Blue Cross Blue Shield of South Carolina | Traditional Indemnity, POS, EPO |
| ONO | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| ONP | Missouri | Anthem BCBS of Missouri | Medicare Advantage, Traditional Indemnity, HMO |
| ONQ | Alabama | BCBS of Alabama | EPO, High-Deductible Health Plan (HDHP), POS |
| ONS | Alabama | BCBS of Alabama | PPO, Medicaid, Traditional Indemnity |
| ONT | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| ONU | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, HMO, High-Deductible Health Plan (HDHP) |
| ONV | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, PPO, Medicaid |
| ONW | Indiana | Anthem BCBS of Indiana | High-Deductible Health Plan (HDHP), EPO, Medicare Advantage |
| ONX | Indiana | Anthem BCBS of Indiana | Traditional Indemnity, POS, HMO |
| ONY | Minnesota | BCBS of Minnesota | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| ONZ | Indiana | Anthem BCBS of Indiana | Medicare Advantage, Traditional Indemnity, EPO |
| OOA | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), HMO, POS |
| OOB | California | Blue-Shield of California | Traditional Indemnity, Medicaid, PPO |
| OOC | Massachusetts | BCBS of Massachusetts | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OOD | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, Medicaid |
| OOE | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, POS |
| OOF | Michigan | BCBS of Michigan | EPO, Medicare Advantage, Traditional Indemnity |
| OOG | California | Blue-Shield of California | Medicaid, High-Deductible Health Plan (HDHP), PPO |
| OOH | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| OOI | Michigan | BCBS of Michigan | EPO, Medicaid, HMO |
| OOJ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), PPO, Traditional Indemnity |
| OOK | Michigan | BCBS of Michigan | Medicare Advantage, POS, High-Deductible Health Plan (HDHP) |
| OOL | Rhode Island | BCBS of Rhode Island | EPO, Medicaid, HMO |
| OOM | California | Anthem Blue-Cross | Traditional Indemnity, PPO, High-Deductible Health Plan (HDHP) |
| OON | Michigan | BCBS of Michigan | Medicare Advantage, EPO, POS |
| OOO | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicaid |
| OOP | California | Blue-Shield of California | PPO, HMO, High-Deductible Health Plan (HDHP) |
| OOQ | Michigan | BCBS of Michigan | Medicaid, Traditional Indemnity, POS |
| OOR | North Carolina | BCBS of North Carolina | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OOS | California | Blue-Shield of California | POS, PPO, Traditional Indemnity |
| OOT | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Medicaid, HMO |
| OOU | Michigan | BCBS of Michigan | Medicare Advantage, EPO, POS |
| OOV | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Traditional Indemnity, PPO |
| OOW | Michigan | BCBS of Michigan | HMO, Medicaid, High-Deductible Health Plan (HDHP) |
| OOX | Michigan | BCBS of Michigan | Traditional Indemnity, POS, Medicare Advantage |
| OOZ | Michigan | BCBS of Michigan | Traditional Indemnity, Medicaid, POS |
| OPA | Louisiana | BCBS of Louisiana | POS, PPO, High-Deductible Health Plan (HDHP) |
| OPB | Pennsylvania | Highmark BCBS of Pennsylvania | Medicaid, Traditional Indemnity, HMO |
| OPC | Oklahoma | Blue Cross Blue Shield of Oklahoma | High-Deductible Health Plan (HDHP), EPO, Medicare Advantage |
| OPD | Wisconsin | Anthem BCBS of Wisconsin | PPO, Traditional Indemnity, Medicaid |
| OPE | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), POS, EPO |
| OPF | Wisconsin | Anthem BCBS of Wisconsin | Medicare Advantage, HMO, Traditional Indemnity |
| OPG | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| OPH | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, EPO, Medicare Advantage |
| OPI | North Carolina | Blue-Cross of North Carolina | HMO, POS, High-Deductible Health Plan (HDHP) |
| OPJ | Wisconsin | Anthem BCBS of Wisconsin | Medicaid, PPO, Traditional Indemnity |
| OPK | Wisconsin | Anthem BCBS of Wisconsin | EPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OPL | Georgia | Blue Cross Blue Shield of Georgia | Traditional Indemnity, HMO, POS |
| OPM | Georgia | Blue Cross Blue Shield of Georgia | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| OPN | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OPP | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, POS, Medicaid |
| OPQ | Washington | Premera Blue Cross | High-Deductible Health Plan (HDHP), EPO, HMO |
| OPR | South Dakota/Iowa | Wellmark BCBS | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| OPS | Massachusetts | BCBS of Massachusetts | Traditional Indemnity, Medicaid, POS |
| OPT | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | EPO, High-Deductible Health Plan (HDHP), PPO |
| OPU | Wisconsin | Anthem BCBS of Wisconsin | HMO, Medicare Advantage, Traditional Indemnity |
| OPV | Wisconsin | Anthem BCBS of Wisconsin | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OPW | Wisconsin | Anthem BCBS of Wisconsin | PPO, EPO, High-Deductible Health Plan (HDHP) |
| OPX | Wisconsin | Anthem BCBS of Wisconsin | Traditional Indemnity, Medicare Advantage, HMO |
| OPY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicaid, POS, Traditional Indemnity |
| OPZ | Wisconsin | Anthem BCBS of Wisconsin | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OQA | Ohio | Anthem BCBS of Ohio | EPO, HMO, High-Deductible Health Plan (HDHP) |
| OQB | California | Anthem Blue-Cross | PPO, Traditional Indemnity, Medicaid |
| OQC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OQD | Michigan | BCBS of Michigan | POS, HMO, Traditional Indemnity |
| OQE | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), PPO |
| OQF | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OQG | Michigan | BCBS of Michigan | Traditional Indemnity, PPO, POS |
| OQH | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OQI | Michigan | BCBS of Michigan | Medicare Advantage, Traditional Indemnity, HMO |
| OQJ | Michigan | BCBS of Michigan | POS, High-Deductible Health Plan (HDHP), PPO |
| OQK | Michigan | BCBS of Michigan | EPO, Medicaid, Traditional Indemnity |
| OQL | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OQM | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, POS |
| OQN | Michigan | BCBS of Michigan | Medicaid, EPO, High-Deductible Health Plan (HDHP) |
| OQO | Michigan | BCBS of Michigan | Medicare Advantage, PPO, Traditional Indemnity |
| OQP | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), HMO, Medicaid |
| OQQ | Michigan | BCBS of Michigan | EPO, POS, Traditional Indemnity |
| OQR | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OQS | California | Anthem Blue-Cross | Traditional Indemnity, Medicaid, EPO |
| OQT | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), POS, HMO |
| OQU | Michigan | BCBS of Michigan | Medicare Advantage, PPO, Traditional Indemnity |
| OQV | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| OQW | Michigan | BCBS of Michigan | HMO, Traditional Indemnity, POS |
| ORA | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| ORB | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), POS, PPO |
| ORC | Kentucky | Anthem BCBS of Kentucky | Traditional Indemnity, EPO, Medicaid |
| ORD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Medicare Advantage, High-Deductible Health Plan (HDHP), HMO |
| ORE | Tennessee | BCBS of Tennessee | PPO, Traditional Indemnity, POS |
| ORF | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| ORG | Tennessee | BCBS of Tennessee | Medicaid, HMO, Traditional Indemnity |
| ORH | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), PPO, EPO |
| ORI | South Carolina | BCBS of South Carolina | Traditional Indemnity, Medicare Advantage, POS |
| ORJ | Michigan | BCBS of Michigan | HMO, High-Deductible Health Plan (HDHP), Medicaid |
| ORK | Ohio | Anthem BCBS of Ohio | PPO, Traditional Indemnity, EPO |
| ORL | California | Anthem Blue-Cross | Medicare Advantage, High-Deductible Health Plan (HDHP), HMO |
| ORM | New York (Northeastern) | Blue-Shield of Northeastern New York | POS, Medicaid, Traditional Indemnity |
| ORN | New Jersey | Horizon BCBS of New Jersey | High-Deductible Health Plan (HDHP), EPO, PPO |
| ORO | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, Medicare Advantage |
| ORP | California | Blue Cross of California | Medicaid, High-Deductible Health Plan (HDHP), POS |
| ORQ | Michigan | BCBS of Michigan | EPO, PPO, Traditional Indemnity |
| ORS | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, HMO |
| ORT | Pennsylvania | Capital Blue-Cross of Pennsylvania | POS, Traditional Indemnity, Medicaid |
| ORU | Tennessee | BCBS of Tennessee | PPO, High-Deductible Health Plan (HDHP), EPO |
| ORV | Michigan | BCBS of Michigan | Medicare Advantage, HMO, Traditional Indemnity |
| ORW | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), Medicaid, PPO |
| ORX | Idaho | Blue-Cross of Idaho | EPO, POS, High-Deductible Health Plan (HDHP) |
| ORY | California | Blue-Shield of California | Traditional Indemnity, Medicare Advantage, HMO |
| ORZ | New Jersey | Horizon BCBS of New Jersey | Medicaid, PPO, High-Deductible Health Plan (HDHP) |
| OSA | Rhode Island | Blue Cross Blue Shield of Rhode Island | POS, Traditional Indemnity, EPO |
| OSB | Alabama | BCBS of Alabama | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| OSC | California | Blue Shield of California | HMO, Traditional Indemnity, POS |
| OSD | Massachusetts | Blue Cross Blue Shield of Massachusetts | Medicaid, EPO, High-Deductible Health Plan (HDHP) |
| OSE | Arizona | BCBS of Arizona | PPO, Medicare Advantage, Traditional Indemnity |
| OSF | Rhode Island | Blue Cross Blue Shield of Rhode Island | High-Deductible Health Plan (HDHP), POS, HMO |
| OSG | Missouri | Blue Cross Blue Shield of Missouri | Traditional Indemnity, Medicaid, EPO |
| OSH | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OSI | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | HMO, Traditional Indemnity, Medicaid |
| OSJ | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), EPO, POS |
| OSK | California | Blue Cross of California | Medicare Advantage, PPO, Traditional Indemnity |
| OSL | Nebraska | BCBS of Nebraska | Medicaid, High-Deductible Health Plan (HDHP), HMO |
| OSM | Illinois | BCBS of Illinois | POS, Traditional Indemnity, EPO |
| OSN | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| OSO | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | HMO, Medicaid, Traditional Indemnity |
| OSP | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), EPO, POS |
| OSQ | Pennsylvania | Highmark BCBS of Pennsylvania | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OSR | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | Traditional Indemnity, Medicaid, HMO |
| OSS | California | Blue-Shield of California | EPO, High-Deductible Health Plan (HDHP), PPO |
| OST | Delaware | Highmark BCBS of Delaware | Medicare Advantage, POS, Traditional Indemnity |
| OSU | California | Blue Shield of California | Medicaid, High-Deductible Health Plan (HDHP), HMO |
| OSV | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | POS, EPO, Medicare Advantage |
| OSW | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), PPO, Traditional Indemnity |
| OSX | South Dakota/Iowa | Wellmark BCBS | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| OSY | Kansas City | BCBS of Kansas City | Traditional Indemnity, Medicare Advantage, POS |
| OSZ | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), EPO, PPO |
| OTA | Florida | Florida-Blue | Medicaid, Traditional Indemnity, HMO |
| OTB | Virginia | Anthem BCBS of Virginia | PPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OTC | Nebraska | BCBS of Nebraska | Traditional Indemnity, POS, EPO |
| OTD | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), HMO, Medicaid |
| OTE | Indiana | Anthem BCBS of Indiana | Medicare Advantage, PPO, Traditional Indemnity |
| OTF | Indiana | Anthem BCBS of Indiana | EPO, High-Deductible Health Plan (HDHP), POS |
| OTG | Michigan | BCBS of Michigan | HMO, Medicaid, Traditional Indemnity |
| OTH | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OTI | North Dakota | BCBS of North Dakota | Traditional Indemnity, EPO, High-Deductible Health Plan (HDHP) |
| OTJ | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, Medicaid, HMO |
| OTK | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| OTL | Alabama | BCBS of Alabama | EPO, Traditional Indemnity, POS |
| OTM | California | Blue-Shield of California | Medicaid, High-Deductible Health Plan (HDHP), HMO |
| OTN | North Dakota | BCBS of North Dakota | PPO, Medicare Advantage, Traditional Indemnity |
| OTO | North Dakota | Blue Cross Blue Shield of North Dakota | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OTP | California | Blue-Shield of California | POS, High-Deductible Health Plan (HDHP), HMO |
| OTQ | Connecticut | Anthem BCBS of Connecticut | Traditional Indemnity, Medicare Advantage, PPO |
| OTS | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OTT | South Dakota/Iowa | Wellmark BCBS | HMO, Traditional Indemnity, POS |
| OTU | South Dakota/Iowa | Wellmark BCBS | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OTV | Pennsylvania | Capital BlueCross | Medicaid, EPO, Traditional Indemnity |
| OTW | Georgia | Anthem BCBS of Georgia | High-Deductible Health Plan (HDHP), POS, HMO |
| OTX | California | Blue-Shield of California | Medicare Advantage, PPO, High-Deductible Health Plan (HDHP) |
| OTY | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, Medicaid, EPO |
| OTZ | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), HMO, POS |
| OUA | Oregon/Idaho/Utah/Washington | Regence BCBS | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OUB | Rhode Island | BCBS of Rhode Island | Medicaid, Traditional Indemnity, EPO |
| OUC | South Carolina | BCBS of South Carolina | High-Deductible Health Plan (HDHP), PPO, HMO |
| OUD | Michigan | BCBS of Michigan | Medicare Advantage, Traditional Indemnity, POS |
| OUE | Rhode Island | BCBS of Rhode Island | EPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OUF | Oregon/Idaho/Utah/Washington | Regence BCBS | Traditional Indemnity, HMO, PPO |
| OUG | Rhode Island | Blue Cross Blue Shield of Rhode Island | High-Deductible Health Plan (HDHP), Medicare Advantage, EPO |
| OUH | New York | Empire BCBS of New York | Medicaid, POS, Traditional Indemnity |
| OUI | New Jersey | Horizon BCBS of New Jersey | PPO, High-Deductible Health Plan (HDHP), HMO |
| OUJ | Michigan | BCBS of Michigan | Medicare Advantage, EPO, Traditional Indemnity |
| OUK | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OUL | Michigan | BCBS of Michigan | HMO, PPO, Medicare Advantage |
| OUM | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), EPO |
| OUN | Michigan | BCBS of Michigan | POS, Medicaid, Traditional Indemnity |
| OUO | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, HMO |
| OUP | South Dakota/Iowa | Wellmark BCBS | EPO, PPO, High-Deductible Health Plan (HDHP) |
| OUQ | Michigan | BCBS of Michigan | Medicaid, Traditional Indemnity, POS |
| OUR | New Jersey | Horizon BCBS of New Jersey | High-Deductible Health Plan (HDHP), EPO, Medicare Advantage |
| OUS | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, Traditional Indemnity, PPO |
| OUT | New Jersey | Horizon BCBS of New Jersey | Medicaid, POS, High-Deductible Health Plan (HDHP) |
| OUU | Michigan | BCBS of Michigan | PPO, Medicare Advantage, Traditional Indemnity |
| OUV | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, HMO |
| OUW | West Virginia | Highmark BCBS of West Virginia | Traditional Indemnity, Medicaid, POS |
| OUX | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), PPO, Medicare Advantage |
| OUY | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| OUZ | Michigan | BCBS of Michigan | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OVA | Ohio | Anthem BCBS of Ohio | PPO, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OVB | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, EPO, Medicaid |
| OVC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | PPO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OVD | Michigan | BCBS of Michigan | Medicaid, EPO, Medicare Advantage |
| OVE | California | Blue Cross of California | High-Deductible Health Plan (HDHP), POS, HMO |
| OVF | Maryland/District of Columbia/Northern Virginia | CareFirst BCBS | Traditional Indemnity, PPO, EPO |
| OVG | Michigan | BCBS of Michigan | Medicare Advantage, Medicaid, High-Deductible Health Plan (HDHP) |
| OVH | Alaska | Premera BCBS of Alaska | HMO, Traditional Indemnity, POS |
| OVI | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), PPO |
| OVK | Georgia | Blue Cross Blue Shield of Georgia | Medicaid, Medicare Advantage, Traditional Indemnity |
| OVL | New York (Western) | BCBS of Western New York | High-Deductible Health Plan (HDHP), HMO, POS |
| OVM | South Dakota/Iowa | Wellmark BCBS | PPO, EPO, Medicaid |
| OVN | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OVO | Michigan | BCBS of Michigan | POS, HMO, Traditional Indemnity |
| OVP | Indiana | Anthem BCBS of Indiana | High-Deductible Health Plan (HDHP), PPO, EPO |
| OVQ | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OVR | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | Traditional Indemnity, POS, HMO |
| OVS | Ohio | Anthem BCBS of Ohio | PPO, EPO, High-Deductible Health Plan (HDHP) |
| OVT | Ohio | Anthem BCBS of Ohio | Medicare Advantage, Medicaid, Traditional Indemnity |
| OVU | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), POS, PPO |
| OVV | Michigan | BCBS of Michigan | Traditional Indemnity, EPO, HMO |
| OVW | West Virginia | Highmark BCBS of West Virginia | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OVX | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, POS |
| OVY | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), Medicaid |
| OVZ | Michigan | BCBS of Michigan | Medicare Advantage, HMO, PPO |
| OWA | South Dakota/Iowa | Wellmark BCBS | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| OWB | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | EPO, Medicaid, PPO |
| OWC | Oregon/Idaho/Utah/Washington | Regence BCBS | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicare Advantage |
| OWD | Maryland/District of Columbia/Northern Virginia | Carefirst BCBS | POS, HMO, High-Deductible Health Plan (HDHP) |
| OWE | Florida | Florida-Blue | Traditional Indemnity, PPO, EPO |
| OWF | South Dakota/Iowa | Wellmark BCBS | Medicaid, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OWG | New York (Western) | BCBS of Western New York | PPO, HMO, Traditional Indemnity |
| OWH | Connecticut | Anthem BCBS of Connecticut | High-Deductible Health Plan (HDHP), POS, Medicaid |
| OWI | Ohio | Anthem BCBS of Ohio | Medicare Advantage, EPO, PPO |
| OWJ | Virginia | Anthem BCBS of Virginia | High-Deductible Health Plan (HDHP), Traditional Indemnity, HMO |
| OWK | Michigan | BCBS of Michigan | Medicaid, PPO, POS |
| OWL | California | Blue-Shield of California | EPO, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OWO | Michigan | BCBS of Michigan | Traditional Indemnity, HMO, PPO |
| OWP | New York | Empire Blue Cross Blue Shield | High-Deductible Health Plan (HDHP), Medicaid, EPO |
| OWQ | Michigan | BCBS of Michigan | Medicare Advantage, Traditional Indemnity, POS |
| OWR | Michigan | BCBS of Michigan | PPO, High-Deductible Health Plan (HDHP), Medicaid |
| OWS | Virginia | Anthem BCBS of Virginia | EPO, Traditional Indemnity, HMO |
| OWT | Georgia | Anthem BCBS of Georgia | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OWU | Michigan | BCBS of Michigan | Traditional Indemnity, PPO, Medicaid |
| OWV | Pennsylvania | Highmark BCBS of Pennsylvania | HMO, High-Deductible Health Plan (HDHP), EPO |
| OWW | Virginia | Anthem BCBS of Virginia | Medicare Advantage, POS, Traditional Indemnity |
| OWX | Ohio | Anthem BCBS of Ohio | High-Deductible Health Plan (HDHP), PPO, Medicaid |
| OWY | Ohio | Anthem BCBS of Ohio | Traditional Indemnity, EPO, HMO |
| OWZ | South Dakota/Iowa | Wellmark BCBS | POS, High-Deductible Health Plan (HDHP), Medicare Advantage |
| OXA | New York (Western) | BCBS of Western New York | Medicaid, Traditional Indemnity, PPO |
| OXB | Oregon | Regence Blue Cross Blue Shield of Oregon | High-Deductible Health Plan (HDHP), HMO, EPO |
| OXC | Washington | Premera Blue Cross | PPO, Medicare Advantage, Traditional Indemnity |
| OXD | California | Anthem Blue-Cross | High-Deductible Health Plan (HDHP), POS, HMO |
| OXE | Michigan | BCBS of Michigan | Medicaid, PPO, EPO |
| OXG | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, Traditional Indemnity |
| OXH | Michigan | BCBS of Michigan | EPO, HMO, POS |
| OXI | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), PPO |
| OXJ | Michigan | BCBS of Michigan | Medicare Advantage, Medicaid, EPO |
| OXK | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OXL | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, Medicare Advantage |
| OXM | Alaska | Premera BCBS of Alaska | HMO, High-Deductible Health Plan (HDHP), POS |
| OXN | Oregon/Idaho/Utah/Washington | Regence BCBS | EPO, PPO, Traditional Indemnity |
| OXO | New York (Western) | BCBS of Western New York | Medicare Advantage, High-Deductible Health Plan (HDHP), Medicaid |
| OXP | California | Anthem Blue-Cross | POS, HMO, High-Deductible Health Plan (HDHP) |
| OXQ | Michigan | BCBS of Michigan | Traditional Indemnity, EPO, PPO |
| OXR | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, Medicaid |
| OXS | California | Blue Shield of California | HMO, Traditional Indemnity, POS |
| OXT | Michigan | BCBS of Michigan | EPO, High-Deductible Health Plan (HDHP), PPO |
| OXU | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, Traditional Indemnity |
| OXV | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, EPO |
| OXW | Michigan | BCBS of Michigan | PPO, Traditional Indemnity, Medicaid |
| OXX | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| OXY | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| OYA | South Dakota/Iowa | Wellmark BCBS | POS, Medicaid, High-Deductible Health Plan (HDHP) |
| OYB | California | Anthem Blue-Cross | Traditional Indemnity, PPO, Medicare Advantage |
| OYC | New Jersey | Horizon BCBS of New Jersey | High-Deductible Health Plan (HDHP), EPO, Medicaid |
| OYD | Idaho | Blue-Cross of Idaho | HMO, Traditional Indemnity, POS |
| OYE | South Dakota/Iowa | Wellmark BCBS | EPO, High-Deductible Health Plan (HDHP), PPO |
| OYF | Michigan | BCBS of Michigan | Medicaid, Medicare Advantage, Traditional Indemnity |
| OYG | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), HMO, EPO |
| OYH | Ohio | Anthem BCBS of Ohio | PPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OYI | Michigan | BCBS of Michigan | Medicare Advantage, POS, Medicaid |
| OYJ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, HMO |
| OYK | Michigan | BCBS of Michigan | Traditional Indemnity, PPO, Medicare Advantage |
| OYL | California | Blue-Shield of California | Medicaid, High-Deductible Health Plan (HDHP), POS |
| OYM | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania | EPO, Traditional Indemnity, High-Deductible Health Plan (HDHP) |
| OYN | Michigan | BCBS of Michigan | HMO, PPO, Medicare Advantage |
| OYO | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, Traditional Indemnity |
| OYP | Georgia | Blue Cross Blue Shield of Georgia | POS, EPO, High-Deductible Health Plan (HDHP) |
| OYQ | Michigan | BCBS of Michigan | Medicare Advantage, HMO, PPO |
| OYR | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicaid |
| OYS | California | Blue-Shield of California | PPO, EPO, Medicare Advantage |
| OYT | Michigan | BCBS of Michigan | HMO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OYU | Michigan | BCBS of Michigan | Medicaid, POS, EPO |
| OYW | Michigan | BCBS of Michigan | Traditional Indemnity, Medicare Advantage, High-Deductible Health Plan (HDHP) |
| OYX | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), PPO, HMO |
| OYY | Michigan | BCBS of Michigan | EPO, Medicaid, Traditional Indemnity |
| OYZ | Tennessee | BCBS of Tennessee | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| OZA | Missouri | Anthem BCBS of Missouri | PPO, Traditional Indemnity, EPO |
| OZB | Wisconsin | Anthem BCBS of Wisconsin | Medicaid, HMO, High-Deductible Health Plan (HDHP) |
| OZC | New Jersey | Horizon BCBS of New Jersey | High-Deductible Health Plan (HDHP), Medicare Advantage, Traditional Indemnity |
| OZD | Virginia | Anthem BCBS of Virginia | PPO, EPO, Medicaid |
| OZE | Michigan | BCBS of Michigan | Traditional Indemnity, High-Deductible Health Plan (HDHP), POS |
| OZF | Michigan | BCBS of Michigan | EPO, HMO, PPO |
| OZG | California | Blue-Shield of California | High-Deductible Health Plan (HDHP), Traditional Indemnity, Medicaid |
| OZH | Pennsylvania | Capital BlueCross | Medicare Advantage, POS, EPO |
| OZI | Michigan | BCBS of Michigan | HMO, High-Deductible Health Plan (HDHP), Traditional Indemnity |
| OZJ | Michigan | BCBS of Michigan | PPO, Medicaid, Medicare Advantage |
| OZK | Missouri | Anthem BCBS of Missouri | High-Deductible Health Plan (HDHP), EPO, HMO |
| OZL | Michigan | BCBS of Michigan | Traditional Indemnity, POS, High-Deductible Health Plan (HDHP) |
| OZM | Virginia | Anthem BCBS of Virginia | Medicaid, PPO, Medicare Advantage |
| OZN | Michigan | BCBS of Michigan | EPO, HMO, Traditional Indemnity |
| OZO | Michigan | Blue Cross Blue Shield of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, POS |
| OZP | California | Anthem Blue-Cross | PPO, Traditional Indemnity, Medicaid |
| OZQ | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), EPO, HMO |
| OZR | Michigan | BCBS of Michigan | Traditional Indemnity, Medicare Advantage, POS |
| OZS | New York (Western) | BCBS of Western New York | PPO, Medicaid, High-Deductible Health Plan (HDHP) |
| OZT | Michigan | BCBS of Michigan | EPO, Traditional Indemnity, HMO |
| OZU | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicare Advantage, PPO |
| OZV | Michigan | BCBS of Michigan | Medicaid, POS, Traditional Indemnity |
| OZW | Georgia | Blue Cross Blue Shield of Georgia | EPO, High-Deductible Health Plan (HDHP), HMO |
| OZX | Missouri | Anthem BCBS of Missouri | PPO, Medicare Advantage, Traditional Indemnity |
| OZY | Michigan | BCBS of Michigan | High-Deductible Health Plan (HDHP), Medicaid, POS |
| OZZ | Michigan | BCBS of Michigan | Traditional Indemnity, EPO, PPO |
This table helps billing teams quickly confirm the payer associated with specific prefixes before processing claims.
Common BCBS Prefixes in OAA to OZZ
Below are several commonly referenced prefixes from this range and their associated BCBS organizations.
BCBS Prefix OGS – Louisiana
| Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| OGS | Louisiana | BCBS of Louisiana | Medicare Advantage, EPO, HMO |
Blue Cross Blue Shield of Louisiana issues the BCBS Prefix OGS. This prefix may appear on member ID cards associated with several plan types, including Medicare Advantage, EPO, and HMO coverage.
When a claim contains the OGS BCBS Prefix, billing teams should verify the patient’s benefits through the Louisiana BCBS network. In many cases, eligibility verification will confirm whether the plan falls under Medicare Advantage or another managed care category. Accurate verification ensures proper claim routing and helps reduce potential billing delays.
BCBS Prefix OSC – California
| Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| OSC | California | Blue Shield of California | HMO, Traditional Indemnity, POS |
Blue Shield of California manages the BCBS Prefix OSC. This prefix may appear on plans such as HMO, POS, and Traditional Indemnity coverage.
When working with the OSC BCBS Prefix, medical billers should verify the plan type and confirm the payer through California’s BCBS system. Some OSC members may have network restrictions, particularly for HMO plans. Therefore, verifying provider participation before submitting claims can help avoid out-of-network billing issues.
Those who are already familiar with other Anthem prefixes, similar structures can be found in guides like BCBS Prefix List NAA to NZZ, which explains several Anthem-issued prefixes across different states.
BCBS Prefix ONA – Missouri
| Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| ONA | Missouri | Anthem BCBS of Missouri | Traditional Indemnity, PPO, Medicaid |
Anthem Blue Cross Blue Shield of Missouri manages the BCBS Prefix ONA. Plans using this prefix may include Traditional Indemnity coverage, PPO plans, and certain Medicaid-related programs.
If a claim includes the ONA BCBS Prefix, billers should confirm the patient’s eligibility and benefits through Anthem’s Missouri network. Because different Anthem plans may require specific claim submission guidelines, checking the prefix information before submission helps maintain clean claim accuracy.
BCBS Prefix ORG – Tennessee
| Prefix | State | BCBS Company | Plan Types |
|---|---|---|---|
| ORG | Tennessee | BCBS of Tennessee | Medicaid, HMO, Traditional Indemnity |
The BCBS Prefix ORG corresponds to Blue Cross Blue Shield of Tennessee. This prefix may be used across multiple plan types, including Medicaid programs, HMO plans, and Traditional Indemnity coverage.
For patients carrying the ORG BCBS Prefix, billing professionals should review plan eligibility and confirm payer routing through the Tennessee BCBS system. Verifying prefixes properly helps billers submit claims to the correct payer and process them without unnecessary delays.
Why Prefix Accuracy Matters in Medical Billing
Correct BCBS prefix verification plays a critical role in the medical billing cycle. Each BCBS organization corresponds to a specific prefix, and billers must route the claim to that organization for processing.
First, the prefix helps identify the issuing BCBS company. Because the Blue Cross Blue Shield Association operates through independent regional companies, the prefix ensures that the claim is sent to the correct network payer.
Second, accurate prefixes reduce claim routing delays. If the wrong payer receives the claim, it may be rejected or transferred, which slows reimbursement. This can significantly impact revenue cycle performance for healthcare providers.
Finally, correct prefix usage helps billing teams verify plan type and eligibility. Certain BCBS plans—such as PPO, HMO, or Medicare Advantage—have different authorization and billing rules. Therefore, verifying the prefix before submission helps prevent avoidable billing errors.
Common Billing Errors With OAA to OZZ Prefixes
Even experienced medical billers occasionally encounter prefix-related issues. Understanding the most common mistakes can help prevent denials and payment delays.
Billers often enter the prefix incorrectly during claim creation. Since the prefix determines payer routing, even a small typo can make the payer reject the claim or send it to the wrong insurance entity.
Another issue arises when billers assume the state of coverage without verifying the prefix. Many BCBS members receive care outside their home state, so the prefix—not the treatment location—should determine the payer.
Additionally, outdated reference lists sometimes lead to verification mistakes. BCBS periodically updates plan information, which is why using an updated BCBS Prefix Finder OAA to OZZ directory is essential for claim accuracy.
How To Use BCBS Prefix Finder Efficiently
Using a BCBS prefix lookup tool effectively can simplify the billing workflow and reduce claim errors. Medical billers typically follow a few straightforward steps.
First, identify the three-letter prefix located at the beginning of the patient’s member ID. Insurance cards usually print this prefix clearly
Next, verify the prefix using a reliable directory or BCBS lookup system. The lookup result will identify the issuing BCBS organization and the state associated with the plan.
After confirming the payer information, review the member’s eligibility and plan type. Finally, submit the claim to the correct payer according to the verified prefix details.
Following this process ensures that claims are routed accurately and processed more efficiently.
FAQs – BCBS Alpha Prefix from OAA to OZZ
Q. What is the BCBS prefix OGS?
A. Blue Cross Blue Shield of Louisiana issues the OGS BCBS Prefix. It may appear on Medicare Advantage, EPO, or HMO plans depending on the member’s coverage.
Q. How do I verify a BCBS prefix?
A. Medical billers verify prefixes by reviewing the member ID card and checking a BCBS prefix directory or payer verification system to identify the issuing company.
Q. Why is the BCBS prefix important?
A. The prefix identifies the correct BCBS payer responsible for processing the claim. Payers may delay or reject claims if you do not verify the prefix accurately..
Q. Can the same BCBS prefix exist in multiple states?
A. Typically, each prefix is linked to a specific BCBS organization, although members may receive care outside their home state within the BCBS network.
Q. What happens if a BCBS prefix is entered incorrectly?
A. If a prefix is entered incorrectly, the claim may be routed to the wrong payer. This often results in claim rejection or payment delays.
Conclusion
The BCBS Prefix List OAA to OZZ plays an essential role in identifying the correct Blue Cross Blue Shield organization responsible for processing a member’s claim. Because each prefix corresponds to a specific payer and plan type, accurate verification helps ensure proper claim routing and faster reimbursement.
Billing professionals who regularly work with BCBS plans should always verify prefixes before submitting claims. Using a reliable BCBS directory—such as the full BCBS prefix reference available here—can simplify the verification process and reduce billing errors:
In many cases, healthcare providers also rely on experienced medical billing and revenue cycle management services to ensure accurate payer identification, clean claim submission, and faster payment processing.
