BCBS Prefix Lookup List – Blue Cross Blue Shield

BCBS Prefix lookup is a 3-character alpha prefix or alpha numeric prefix in the first 3 positions of the BCBS member’s ID number. The purpose of the BCBS Prefix lookup list is to assist the provider to determine the plan submission based on the prefix and location of the services.

BCBS Prefix lookup – BCBS Alpha Prefix Lookup list 2024:

AAA to AZZ – Alpha     A2A to A2Z – Alpha Numeric	BAA to BZZ – Alpha     B2A to B2Z – Alpha Numeric
CAA to CZZ – Alpha     C2A to C2Z – Alpha Numeric	DAA to DZZ – Alpha     D2A to D2Z – Alpha Numeric
EAA to EZZ – Alpha     E2A to E2Z – Alpha Numeric	FAA to FZZ – Alpha     F2A to F2Z – Alpha Numeric
GAA to GZZ – Alpha     G2A to G2Z – Alpha Numeric	HAA to HZZ – Alpha     H2A to H2Z – Alpha Numeric
IAA to IZZ – Alpha     I2A to I2Z – Alpha Numeric	JAA to JZZ – Alpha     J2A to J2Z – Alpha Numeric
KAA to KZZ – Alpha   K2A to K2Z – Alpha Numeric	LAA to LZZ – Alpha     L2A to L2Z – Alpha Numeric
MAA to MZZ – Alpha     M2A to M2Z – Alpha Numeric	NAA to NZZ – Alpha     N2A to N2Z – Alpha Numeric
OAA to OZZ – Alpha     O2A to O2Z – Alpha Numeric	PAA to PZZ – Alpha     P2A to P2Z – Alpha Numeric
QAA to QZZ – Alpha     Q2A to Q2Z – Alpha Numeric	RAA to RZZ – Alpha     R2A to R2Z – Alpha Numeric
SAA to SZZ – Alpha     S2A to S2Z – Alpha Numeric	TAA to TZZ – Alpha     T2A to T2Z – Alpha Numeric
UAA to UZZ – Alpha     U2A to U2Z – Alpha Numeric	VAA to VZZ – Alpha     V2A to V2Z – Alpha Numeric
WAA to WZZ – Alpha     W2A to W2Z – Alpha Numeric	XAA to XZZ – Alpha     X2A to X2Z – Alpha Numeric
YAA to YZZ – Alpha     Y2A to Y2Z – Alpha Numeric	ZAA to ZZZ – Alpha     Z2A to Z2Z – Alpha Numeric

BCBS Prefix Lookup table – 2024:

BCBS Prefix Lookup also known BCBS Alpha Prefix finder, it is used to find or search the BCBS Plan and the member affiliated BCBS companies by using the 3-character BCBS prefix. In this way it helps the provider to find the correct affiliated BCBS companies to submit and reimburse the claims.  

BCBS Prefix lookup is critical for inquiries regarding the member, including eligibility and benefits, and is necessary for proper claim filing.

• Whenever we are billing the claim to insurance companies, billing companies should enter the member ID along with the 3-character BCBS Prefix. It is very important for Billing companies to bill the claim with BCBS prefix accurately as it appears on the member ID card.
• Billing companies should always include the ID number including the BCBS Prefix on any credentials relating to services to ensure precise handling by the BCBS Plan.

A Member ID includes the BCBS prefix in the first three positions and all subsequent characters between 6 and 14 numbers or letters up to 17 characters total.

Example of BCBS Prefix:

AAA1234567

A2A76543321

Tips we should follow while submitting the claim with BCBS prefix:

1. Always use the BCBS Prefix on the members current ID card.
2. If there is no BCBS prefix, do not create one or use the BCBS prefix from another member’s ID card. Doing this may cause delays in processing and handling the claims.
3. If the card presented has no BCBS prefix, then follow the instructions on the back of the ID card for inquiries and claim handling.

Some of the BCBS member’s ID card do not have an BCBS prefix or alphanumeric for the following products and programs:

• Stand-alone dental products
• BCBS FEP
• Pharmacy and stand-alone vision when delivered thru an intermediary model.

Federal Employee Program Member ID card:

FEP doesn’t have 3-character alpha BCBS Prefix or Alphanumeric BCBS Prefix. FEP member ID begin with the letter R followed by numbers.

Example: R12345678.

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