Today you will find The BCBS Alpha Prefix List from SAA to SZZ. The alpha prefix is very important to the identification number. The prefix acts as a key element in confirming the members’ eligibility and coverage information. Prefixes are also used to identify and correctly route claims to the appropriate Blue Cross Blue Shield Plan for processing. Most members with coverage through a Blue Cross Blue Shield Plan are assigned a Three Letter alpha prefix as a part of their unique identification number. The alpha prefix can easily be identified as it is the first three characters.
| BCBS Prefix | State Lookup | BCBS Company |
|---|---|---|
| SAA | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SAB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SAC | California | Anthem Blue-Cross |
| SAD | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SAE | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SAF | California | Anthem Blue-Cross |
| SAG | California | Anthem Blue-Cross |
| SAH | Illinois | Blue-Cross Blue-Shield of Illinois |
| SAI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SAJ | California | Blue-Shield of California |
| SAK | Illinois | Blue-Cross Blue-Shield of Illinois |
| SAL | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SAM | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SAN | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SAO | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SAP | California | Blue-Shield of California |
| SAQ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SAR | Michigan | Blue-Cross Blue-Shield of Michigan |
| SAS | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SAT | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SAU | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SAV | – | Unallocated/Not Assigned |
| SAW | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SAX | New York | Empire Blue-Cross Blue-Shield of New York |
| SAY | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SAZ | – | Unallocated/Not Assigned |
| SBA | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| SBB | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SBC | Illinois | Blue-Cross Blue-Shield of Illinois |
| SBD | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SBE | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SBF | Illinois | Blue-Cross Blue-Shield of Illinois |
| SBG | – | Unallocated/Not Assigned |
| SBH | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SBI | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SBJ | – | Unallocated/Not Assigned |
| SBK | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SBL | – | Unallocated/Not Assigned |
| SBM | – | Unallocated/Not Assigned |
| SBN | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SBO | – | Unallocated/Not Assigned |
| SBP | Texas | Blue-Cross Blue-Shield of Texas |
| SBQ | Illinois | Blue-Cross Blue-Shield of Illinois |
| SBR BCBS Prefix | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SBS | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SBT | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SBU | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SBV | California | Anthem Blue-Cross |
| SBW | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SBX | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SBY | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SBZ | – | Unallocated/Not Assigned |
| SCA | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SCB | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SCC | California | Blue-Shield of California |
| SCD | Texas | Blue-Cross Blue-Shield of Texas |
| SCE | Illinois | Blue-Cross Blue-Shield of Illinois |
| SCF | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SCG | Alabama | Blue-Cross Blue-Shield of Alabama |
| SCH | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SCI | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SCJ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SCK | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SCL | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SCM | Texas | Blue-Cross Blue-Shield of Texas |
| SCN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SCO | Alabama | Blue-Cross Blue-Shield of Alabama |
| SCP | – | Credence Blue-Cross Blue-Shield |
| SCQ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SCR | Michigan | Blue-Cross Blue-Shield of Michigan |
| SCS | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SCT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SCU | Idaho | Blue-Cross of Idaho |
| SCV | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SCW | Alabama | Blue-Cross Blue-Shield of Alabama |
| SCX | Illinois | Blue-Cross Blue-Shield of Illinois |
| SCY | Alabama | Blue-Cross Blue-Shield of Alabama |
| SCZ | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SDA | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| SDB | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SDC | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SDD | New York (Northeastern) | Blue-Shield of Northeastern New York |
| SDE | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| SDF | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SDG | California | Anthem Blue-Cross |
| SDH | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SDI | – | Unallocated/Not Assigned |
| SDJ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SDK | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SDL | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SDM | – | Unallocated/Not Assigned |
| SDN | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| SDO | Illinois | Blue-Cross Blue-Shield of Illinois |
| SDP | New York | Empire Blue-Cross Blue-Shield of New York |
| SDQ | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SDR | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SDS | New York | Excellus Blue-Cross Blue-Shield of New York |
| SDT | Alabama | Blue-Cross Blue-Shield of Alabama |
| SDU | California | Anthem Blue-Cross |
| SDV | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SDW | Oklahoma | Blue-Cross Blue-Shield of Oklahoma |
| SDX | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SDY | Florida | Florida-Blue |
| SDZ | – | Unallocated/Not Assigned |
| SEA | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SEB | Michigan | Blue-Cross Blue-Shield of Michigan |
| SEC | Florida | Florida-Blue |
| SED | Illinois | Blue-Cross Blue-Shield of Illinois |
| SEE | Michigan | Blue-Cross Blue-Shield of Michigan |
| SEF | – | Unallocated/Not Assigned |
| SEG | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| SEH | Alabama | Blue-Cross Blue-Shield of Alabama |
| SEI | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SEJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SEK | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SEL | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SEM | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SEN | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| SEO | California | Blue-Shield of California |
| SEP | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SEQ | – | Unallocated/Not Assigned |
| SER | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SES | Michigan | Blue-Cross Blue-Shield of Michigan |
| SET | Texas | Blue-Cross Blue-Shield of Texas |
| SEU | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SEV | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SEW | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SEX | – | Unallocated/Not Assigned |
| SEY | California | Anthem Blue-Cross |
| SEZ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SFA | New York | Empire Blue-Cross Blue-Shield of New York |
| SFB | Illinois | Blue-Cross Blue-Shield of Illinois |
| SFC | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SFD | – | Unallocated/Not Assigned |
| SFE | – | Unallocated/Not Assigned |
| SFF | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SFG | California | Blue-Shield of California |
| SFH | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SFI | Illinois | Blue-Cross Blue-Shield of Illinois |
| SFJ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SFK | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SFL | Florida | Florida-Blue |
| SFM | Alabama | Blue-Cross Blue-Shield of Alabama |
| SFN | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SFO | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SFP | Illinois | Blue-Cross Blue-Shield of Illinois |
| SFQ | Mississippi | Blue-Cross Blue-Shield of Mississippi |
| SFR | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SFS | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SFT | Arkansas | Arkansas Blue-Cross Blue-Shield |
| SFU | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SFV | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SFW | New York | Empire Blue-Cross Blue-Shield of New York |
| SFX | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SFY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SFZ BCBS Prefix | Illinois | Blue-Cross Blue-Shield of Illinois |
| SGA | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SGB | Michigan | Blue-Cross Blue-Shield of Michigan |
| SGC | Michigan | Blue-Cross Blue-Shield of Michigan |
| SGD | – | Unallocated/Not Assigned |
| SGE | California | Anthem Blue-Cross |
| SGF | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| SGG | Illinois | Blue-Cross Blue-Shield of Illinois |
| SGH | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SGI | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SGJ | Idaho | Blue-Cross of Idaho |
| SGK | – | Unallocated/Not Assigned |
| SGL | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SGM | Michigan | Blue-Cross Blue-Shield of Michigan |
| SGN | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SGO | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SGP | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SGQ | – | Unallocated/Not Assigned |
| SGR | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SGS | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SGT | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SGU | Florida | Florida-Blue |
| SGV | California | Anthem Blue-Cross |
| SGW | Illinois | Blue-Cross Blue-Shield of Illinois |
| SGX | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SGY | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SGZ | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SHA | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SHB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SHC | California | Anthem Blue-Cross |
| SHD | New York | Empire Blue-Cross Blue-Shield of New York |
| SHE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SHF | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SHG | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SHH | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SHI | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SHJ | – | Unallocated/Not Assigned |
| SHK | Alabama | Blue-Cross Blue-Shield of Alabama |
| SHL | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SHM | New York | Empire Blue-Cross Blue-Shield of New York |
| SHN | Illinois | Blue-Cross Blue-Shield of Illinois |
| SHO | California | Anthem Blue-Cross |
| SHP BCBS Prefix | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| SHQ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SHR | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SHS | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SHT | Texas | Blue-Cross Blue-Shield of Texas |
| SHU | – | Unallocated/Not Assigned |
| SHV | – | Unallocated/Not Assigned |
| SHW | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SHX | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SHY | – | Unallocated/Not Assigned |
| SHZ | North Dakota | Blue-Cross Blue-Shield of North Dakota |
| SIA | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SIB | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SIC | California | Blue-Shield of California |
| SID | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SIE | – | Unallocated/Not Assigned |
| SIF | California | Anthem Blue-Cross |
| SIG | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SIH | New York | Empire Blue-Cross Blue-Shield of New York |
| SII | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SIJ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SIK | – | Unallocated/Not Assigned |
| SIL | California | Blue-Shield of California |
| SIM | Arkansas | Arkansas Blue-Cross Blue-Shield |
| SIN | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SIO | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SIP | – | Unallocated/Not Assigned |
| SIQ | – | Unallocated/Not Assigned |
| SIR | California | Anthem Blue-Cross |
| SIS | – | Unallocated/Not Assigned |
| SIT | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SIU | Illinois | Blue-Cross Blue-Shield of Illinois |
| SIV | California | Blue-Shield of California |
| SIW | Illinois | Blue-Cross Blue-Shield of Illinois |
| SIX | – | Unallocated/Not Assigned |
| SIY | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SIZ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SJA | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SJB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SJC | Florida | Florida-Blue |
| SJD | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SJE | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SJF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SJG | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| SJH | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SJI | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SJJ | – | Unallocated/Not Assigned |
| SJK | Arkansas | Arkansas Blue-Cross Blue-Shield |
| SJL | Illinois | Blue-Cross Blue-Shield of Illinois |
| SJM | – | Unallocated/Not Assigned |
| SJN | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SJO | California | Anthem Blue-Cross |
| SJP | Illinois | Blue-Cross Blue-Shield of Illinois |
| SJQ | – | Unallocated/Not Assigned |
| SJR | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SJS | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SJT | Alabama | Blue-Cross Blue-Shield of Alabama |
| SJU | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SJV | – | Unallocated/Not Assigned |
| SJW | – | Unallocated/Not Assigned |
| SJX | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SJY | California | Blue-Shield of California |
| SJZ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SKA | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SKB | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SKC | – | Unallocated/Not Assigned |
| SKD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SKE | – | Unallocated/Not Assigned |
| SKF | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| SKG | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SKH | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SKI | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SKJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SKK | Illinois | Blue-Cross Blue-Shield of Illinois |
| SKL | Illinois | Blue-Cross Blue-Shield of Illinois |
| SKM | – | Unallocated/Not Assigned |
| SKN | Texas | Blue-Cross Blue-Shield of Texas |
| SKO | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SKP | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SKQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SKR | – | Unallocated/Not Assigned |
| SKS | Illinois | Blue-Cross Blue-Shield of Illinois |
| SKT | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| SKU | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SKV | – | Unallocated/Not Assigned |
| SKW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SKX | Texas | Blue-Cross Blue-Shield of Texas |
| SKY | Illinois | Blue-Cross Blue-Shield of Illinois |
| SKZ | – | Unallocated/Not Assigned |
| SLA | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SLB | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SLC | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SLD | – | Unallocated/Not Assigned |
| SLE | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| SLF | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SLG | California | Anthem Blue-Cross |
| SLH | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SLI | Alabama | Blue-Cross Blue-Shield of Alabama |
| SLJ | – | Unallocated/Not Assigned |
| SLK | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SLL | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| SLM | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SLN | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SLO | – | Unallocated/Not Assigned |
| SLP | – | Unallocated/Not Assigned |
| SLQ | – | Unallocated/Not Assigned |
| SLR | Texas | Blue-Cross Blue-Shield of Texas |
| SLS | Florida | Florida-Blue |
| SLT | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SLU | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SLV | – | Unallocated/Not Assigned |
| SLW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| SLX | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SLY | – | Unallocated/Not Assigned |
| SLZ | – | Unallocated/Not Assigned |
| SMA | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| SMB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SMC | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SMD | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| SME | New York | Empire Blue-Cross Blue-Shield of New York |
| SMF | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SMG | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SMH | Alabama | Blue-Cross Blue-Shield of Alabama |
| SMI | – | Unallocated/Not Assigned |
| SMJ | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SMK | Michigan | Blue-Cross Blue-Shield of Michigan |
| SML | Illinois | Blue-Cross Blue-Shield of Illinois |
| SMM | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SMN | New York | Empire Blue-Cross Blue-Shield of New York |
| SMO | – | Unallocated/Not Assigned |
| SMP | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SMQ | – | Unallocated/Not Assigned |
| SMR | – | Unallocated/Not Assigned |
| SMS | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SMT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SMU | Michigan | Blue-Cross Blue-Shield of Michigan |
| SMV | Michigan | Blue-Cross Blue-Shield of Michigan |
| SMW | Illinois | Blue-Cross Blue-Shield of Illinois |
| SMX | Michigan | Blue-Cross Blue-Shield of Michigan |
| SMY | Alabama | Blue-Cross Blue-Shield of Alabama |
| SMZ | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SNA | California | Anthem Blue-Cross |
| SNB | Texas | Blue-Cross Blue-Shield of Texas |
| SNC | – | Unallocated/Not Assigned |
| SND | – | Unallocated/Not Assigned |
| SNE | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SNF | – | Unallocated/Not Assigned |
| SNG | – | Unallocated/Not Assigned |
| SNH | – | Unallocated/Not Assigned |
| SNI | – | Unallocated/Not Assigned |
| SNJ | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SNK | Arizona | Blue-Cross Blue-Shield of Arizona |
| SNL | Illinois | Blue-Cross Blue-Shield of Illinois |
| SNM | – | Unallocated/Not Assigned |
| SNN | – | Unallocated/Not Assigned |
| SNO | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SNP | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SNQ | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| SNR | – | Unallocated/Not Assigned |
| SNS | Illinois | Blue-Cross Blue-Shield of Illinois |
| SNT | – | Unallocated/Not Assigned |
| SNU | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SNV | Michigan | Blue-Cross Blue-Shield of Michigan |
| SNW | – | Unallocated/Not Assigned |
| SNX | California | Anthem Blue-Cross |
| SNY | – | Credence Blue-Cross Blue-Shield |
| SNZ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SOA | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SOB | Michigan | Blue-Cross Blue-Shield of Michigan |
| SOC | California | Blue-Shield of California |
| SOD | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| SOE | Illinois | Blue-Cross Blue-Shield of Illinois |
| SOF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SOG | – | Unallocated/Not Assigned |
| SOH | – | Unallocated/Not Assigned |
| SOI | – | Unallocated/Not Assigned |
| SOJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SOK | California | Blue-Shield of California |
| SOL | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SOM | – | Unallocated/Not Assigned |
| SON | California | Blue-Shield of California |
| SOO | California | Blue-Shield of California |
| SOP | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SOQ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SOR | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| SOS | Florida | Florida-Blue |
| SOT | – | Unallocated/Not Assigned |
| SOU | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SOV | – | Unallocated/Not Assigned |
| SOW | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SOX | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| SOY | – | Unallocated/Not Assigned |
| SOZ | – | Unallocated/Not Assigned |
| SPA | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SPB | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SPC | – | Unallocated/Not Assigned |
| SPD | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SPE | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SPF | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SPG | California | Blue-Shield of California |
| SPH | Arizona | Blue-Cross Blue-Shield of Arizona |
| SPI | California | Anthem Blue-Cross |
| SPJ | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SPK | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SPL | Illinois | Blue-Cross Blue-Shield of Illinois |
| SPM | – | Unallocated/Not Assigned |
| SPN | Texas | Blue-Cross Blue-Shield of Texas |
| SPO | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| SPP | – | Unallocated/Not Assigned |
| SPQ | Illinois | Blue-Cross Blue-Shield of Illinois |
| SPR | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SPS | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SPT | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SPU | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SPV | – | Unallocated/Not Assigned |
| SPW | California | Blue-Shield of California |
| SPX | Idaho | Blue-Cross of Idaho |
| SPY | – | Unallocated/Not Assigned |
| SPZ | – | Unallocated/Not Assigned |
| SQA | – | Unallocated/Not Assigned |
| SQB | – | Unallocated/Not Assigned |
| SQC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SQD | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SQE | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SQF | – | Unallocated/Not Assigned |
| SQG | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SQH | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| SQI | – | Unallocated/Not Assigned |
| SQJ | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| SQK | California | Anthem Blue-Cross |
| SQL | – | Unallocated/Not Assigned |
| SQM | California | Blue-Shield of California |
| SQN | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SQO | Michigan | Blue-Cross Blue-Shield of Michigan |
| SQP | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SQQ | Idaho | Blue-Cross of Idaho |
| SQR | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SQS | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SQT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SQU | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SQV | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SQW | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SQX | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SQY | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SQZ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SRA | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SRB | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SRC | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SRD | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SRE | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| SRF | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SRG | California | Blue-Shield of California |
| SRH | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SRI | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SRJ | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SRK | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SRL | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| SRM | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SRN | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SRO | New York | Excellus Blue-Cross Blue-Shield of New York |
| SRP | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SRQ | California | Anthem Blue-Cross |
| SRR | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SRS | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SRT | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| SRU | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SRV | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SRW | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SRX | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SRY | Illinois | Blue-Cross Blue-Shield of Illinois |
| SRZ | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SSA | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SSB | – | Unallocated/Not Assigned |
| SSC | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SSD | California | Blue-Shield of California |
| SSE | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SSF | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| SSG | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SSH | – | Unallocated/Not Assigned |
| SSI | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SSJ | – | Unallocated/Not Assigned |
| SSK | New York | Empire Blue-Cross Blue-Shield of New York |
| SSL | California | Blue-Shield of California |
| SSM | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SSN | – | Unallocated/Not Assigned |
| SSO | California | Blue-Shield of California |
| SSP | – | Unallocated/Not Assigned |
| SSQ | Idaho | Blue-Cross of Idaho |
| SSR | – | Unallocated/Not Assigned |
| SSS | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SST | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SSU | California | Anthem Blue-Cross |
| SSV | – | Unallocated/Not Assigned |
| SSW | – | Unallocated/Not Assigned |
| SSX | Texas | Blue-Cross Blue-Shield of Texas |
| SSY | California | Anthem Blue-Cross |
| SSZ | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| STA | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| STC | Alabama | Blue-Cross Blue-Shield of Alabama |
| STD | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| STE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| STF | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| STG | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STH | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| STI | Texas | Blue-Cross Blue-Shield of Texas |
| STJ | Alaska | Premera Blue-Cross of Alaska |
| STK | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| STL | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STM | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| STN | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| STO | – | Unallocated/Not Assigned |
| STP | Texas | Blue-Cross Blue-Shield of Texas |
| STQ | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STR | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| STS | California | Blue-Shield of California |
| STT | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STU | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| STV | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| STW | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| STX | Illinois | Blue-Cross Blue-Shield of Illinois |
| STY | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| STZ | Florida | Florida-Blue |
| SUA | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SUB | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SUC | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SUD | New York | Excellus Blue-Cross Blue-Shield of New York |
| SUE | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SUF | New York | Empire Blue-Cross Blue-Shield of New York |
| SUG | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SUH | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SUI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SUJ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SUK | – | Unallocated/Not Assigned |
| SUL | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SUM | Alabama | Blue-Cross Blue-Shield of Alabama |
| SUN | Illinois | Blue-Cross Blue-Shield of Illinois |
| SUO | – | Unallocated/Not Assigned |
| SUP | Illinois | Blue-Cross Blue-Shield of Illinois |
| SUQ | – | Unallocated/Not Assigned |
| SUR | Illinois | Blue-Cross Blue-Shield of Illinois |
| SUS | New York | Excellus Blue-Cross Blue-Shield of New York |
| SUT | California | Anthem Blue-Cross |
| SUU | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SUV | Alabama | Blue-Cross Blue-Shield of Alabama |
| SUW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| SUX | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SUY | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SUZ | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| SVA | – | Unallocated/Not Assigned |
| SVB | Michigan | Blue-Cross Blue-Shield of Michigan |
| SVC | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SVD | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SVE | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SVF | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| SVG | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| SVH | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SVI | – | Unallocated/Not Assigned |
| SVJ | – | Unallocated/Not Assigned |
| SVK | Mississippi | Blue-Cross Blue-Shield of Mississippi |
| SVL | Kansas | Blue-Cross Blue-Shield of Kansas |
| SVM | – | Unallocated/Not Assigned |
| SVN | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| SVO | California | Blue-Shield of California |
| SVP | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SVQ | Oklahoma | Blue-Cross Blue-Shield of Oklahoma |
| SVR | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SVS | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SVT | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SVU | Illinois | Blue-Cross Blue-Shield of Illinois |
| SVV | – | Unallocated/Not Assigned |
| SVW | – | Unallocated/Not Assigned |
| SVX | California | Blue-Shield of California |
| SVY | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SVZ | – | Unallocated/Not Assigned |
| SWA | – | Unallocated/Not Assigned |
| SWB | Arizona | Blue-Cross Blue-Shield of Arizona |
| SWC | – | Unallocated/Not Assigned |
| SWD | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SWE | – | Unallocated/Not Assigned |
| SWF | – | Unallocated/Not Assigned |
| SWG | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SWH | Illinois | Blue-Cross Blue-Shield of Illinois |
| SWI | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SWJ | Illinois | Blue-Cross Blue-Shield of Illinois |
| SWK | Illinois | Blue-Cross Blue-Shield of Illinois |
| SWL | – | Unallocated/Not Assigned |
| SWM | – | Unallocated/Not Assigned |
| SWN | – | Unallocated/Not Assigned |
| SWO | – | Unallocated/Not Assigned |
| SWP | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| SWQ | – | Unallocated/Not Assigned |
| SWR | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SWS | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SWT | Arizona | Blue-Cross Blue-Shield of Arizona |
| SWU | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SWV | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| SWW | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SWX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SWY | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SWZ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SXA | Arkansas | Arkansas Blue-Cross Blue-Shield |
| SXB | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SXC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SXD | California | Blue-Shield of California |
| SXE | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SXF | – | Unallocated/Not Assigned |
| SXG | – | Unallocated/Not Assigned |
| SXH | – | Unallocated/Not Assigned |
| SXI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SXJ | California | Anthem Blue-Cross |
| SXK | New York | Empire Blue-Cross Blue-Shield of New York |
| SXL | – | Unallocated/Not Assigned |
| SXM | California | Blue-Shield of California |
| SXN | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SXO | Michigan | Blue-Cross Blue-Shield of Michigan |
| SXP | – | Unallocated/Not Assigned |
| SXQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SXR | – | Unallocated/Not Assigned |
| SXS | – | Unallocated/Not Assigned |
| SXT | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SXU | – | Unallocated/Not Assigned |
| SXV | Idaho | Blue-Cross of Idaho |
| SXW | Illinois | Blue-Cross Blue-Shield of Illinois |
| SXX | Illinois | Blue-Cross Blue-Shield of Illinois |
| SXY | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SXZ | California | Anthem Blue-Cross |
| SYA | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SYB | Illinois | Blue-Cross Blue-Shield of Illinois |
| SYC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SYD | Arizona | Blue-Cross Blue-Shield of Arizona |
| SYE | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| SYF | Alabama | Blue-Cross Blue-Shield of Alabama |
| SYG | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SYH | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| SYI | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SYJ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SYK | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SYL | – | Unallocated/Not Assigned |
| SYM | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SYN | – | Unallocated/Not Assigned |
| SYO | Michigan | Blue-Cross Blue-Shield of Michigan |
| SYP | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SYQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| SYR | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SYS | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| SYT | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| SYU | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SYV | – | Unallocated/Not Assigned |
| SYW | – | Unallocated/Not Assigned |
| SYX | Alabama | Blue-Cross Blue-Shield of Alabama |
| SYY BCBS Prefix | Illinois | Blue-Cross Blue-Shield of Illinois |
| SYZ | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SZA | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| SZB | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| SZC | Illinois | Blue-Cross Blue-Shield of Illinois |
| SZD | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| SZE | Illinois | Blue-Cross Blue-Shield of Illinois |
| SZF | Illinois | Blue-Cross Blue-Shield of Illinois |
| SZG | – | Unallocated/Not Assigned |
| SZH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| SZI | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| SZJ | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| SZK | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| SZL | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| SZM | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| SZN | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| SZO | New York (Northeastern) | Blue-Shield of Northeastern New York |
| SZP | – | Unallocated/Not Assigned |
| SZQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SZR | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SZS | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SZT | – | Unallocated/Not Assigned |
| SZU | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| SZV | – | Unallocated/Not Assigned |
| SZW | – | Unallocated/Not Assigned |
| SZX | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| SZY BCBS Prefix | California | Anthem Blue-Cross |
| SZZ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
Some identification cards may not include an alpha prefix, which may indicate that the claim filing instructions for these type policies are different. We suggest that you verify claim filing instructions during the time eligibility information is obtained. If not, please follow the instructions on the back of the member’s ID card or contact the plan directly. Member eligibility can be obtained at 1 (800) 676-BLUE (2583). Once connected, you will then simply provide the alpha prefix and the operator will then route you to the member’s plan. Helpful Tips Related to the Alpha Prefix:
- Do not omit or randomly select an alpha prefix.
- Do not substitute another Blue Cross Blue Shield Member’s prefix.
- Include the alpha prefix and all alpha characters preceding the alpha prefix on all correspondence and claims submitted to Blue Cross Blue Shield of Texas.
- The alpha prefix is always three letters followed by the member’s ID number which can be from 6 up to 14 characters total.
- If possible, make copies of the member’s ID card (front and back) for your records.
- We recommend that you obtain a copy of the ID card any time there has been a coverage or policy change. If there are no changes, we suggest that you obtain card copies annually.
About us
Billing Executive – a Medical Billing and Coding Knowledge Base for Physicians, Office staff, Medical Billers and Coders, including resources pertaining to HCPCS Codes, CPT Codes, ICD-10 billing codes, Modifiers, POS Codes, Revenue Codes, Billing Errors, Denials and Rejections.
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BCBS Alpha Prefix List – RAA to RZZ
BCBS Alpha Prefix List – KAA to KZZ
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