BCBS Alpha Prefix from UAA to UZZ (UPDATE 2025)

Overview

Understanding the Blue Cross Blue Shield (BCBS) alpha prefix system is essential for medical billing professionals, healthcare providers, and patients. This guide details the BCBS member ID prefixes from UAA to UZZ, assisting in identifying home plans and directing users to the correct resources.

Why are BCBS Prefixes Important?

The prefix on a patient’s BCBS member ID helps in determining the patient’s insurance plan and the specific BCBS organization responsible for handling claims. Having knowledge of these prefixes ensures that billing is processed efficiently, reducing the risks of denials and payment delays.

Key BCBS Prefixes from UAA to UZZ

Below, we present an overview of the major BCBS prefixes ranging from UAA to UZZ:

Major BCBS Alpha Prefixes

Alpha Prefix	BCBS Home Plan Name	BCBS Home Plan Website
UPD	Anthem BCBS of Wisconsin	Anthem Wisconsin
UHL	BCBS of Arizona	BCBS Arizona
UNR	Anthem Blue Cross of California	Anthem California
UST	BCBS of Illinois	BCBS Illinois
UCR	Anthem BCBS of Missouri	Anthem Missouri

Complete List of BCBS Alpha Prefixes from UAA to UZZ

The following table provides an exhaustive list of all BCBS member ID prefixes in the range from UAA to UZZ, along with their corresponding home plan names and websites.

Alpha Prefix	BCBS Home Plan Name	BCBS Home Plan Website
UAA	BCBS of Michigan	https://www.bcbsm.com/
UAB	Unknown Assignment	https://www.bcbs.com/
UAC	BCBS of Michigan	https://www.bcbsm.com/
UAD	Regence	https://www.regence.com/member/home
UAF	Prefix Not in Use	https://www.bcbs.com/member-services
UAG	BCBS of Texas	https://www.bcbstx.com/
UAH	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UAI	Prefix Not in Use	https://www.bcbs.com/member-services
UAK	Anthem BCBS of Connecticut	https://www.anthem.com/individual-and-family/health-insurance/connecticut/
UAM	Highmark BCBS	https://www.highmarkbcbs.com/home/
UAN	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UAO	BCBS of Michigan	https://www.bcbsm.com/
UAP	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UAQ	Blue Shield of California	https://blueshieldcaplans.com/
UAR	Prefix Not in Use	https://www.bcbs.com/member-services
UAS	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UAT	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UAV	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UAX	Empire BCBS of New York	https://www.empireblue.com/
UBA	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UBB	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UBC	Anthem BCBS of Indiana	https://www.anthem.com/individual-and-family/health-insurance/indiana/
UBD	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UBF	Independence Blue Cross	https://www.ibx.com/index.jsp
UBG	BCBS of Michigan	https://www.bcbsm.com/
UBH	Prefix Not in Use	https://www.bcbs.com/member-services
UBI	Prefix Not in Use	https://www.bcbs.com/member-services
UBK	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UBL	Independence Blue Cross	https://www.ibx.com/index.jsp
UBN	Prefix Not in Use	https://www.bcbs.com/member-services
UBO	Blue Shield of California	https://blueshieldcaplans.com/
UBP	Wellmark BCBS	https://www.wellmark.com/
UBQ	Prefix Not in Use	https://www.bcbs.com/member-services
UBR	Anthem BCBS of Kentucky	https://www.anthem.com/individual-and-family/health-insurance/kentucky/
UBT	Prefix Not in Use	https://www.bcbs.com/member-services
UBU	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UBV	Wellmark BCBS	https://www.wellmark.com/
UBW	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UBX	Wellmark BCBS	https://www.wellmark.com/
UBY	Prefix Not in Use	https://www.bcbs.com/member-services
UBZ	Anthem BCBS of Indiana	https://www.anthem.com/individual-and-family/health-insurance/indiana/
UCA	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UCB	Premera Blue Cross	https://www.premera.com/visitor
UCC	BCBS of Michigan	https://www.bcbsm.com/
UCD	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UCE	BCBS of Texas	https://www.bcbstx.com/
UCF	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UCG	BCBS of Massachusetts	https://home.bluecrossma.com/
UCH	Unknown Assignment	https://www.bcbs.com/
UCI	BCBS of Michigan	https://www.bcbsm.com/
UCJ	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UCK	BCBS of Michigan	https://www.bcbsm.com/
UCL	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UCM	BCBS of Illinois	https://www.bcbsil.com/
UCN	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UCO	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UCP	Wellmark BCBS	https://www.wellmark.com/
UCQ	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UCR	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UCT	Prefix Not in Use	https://www.bcbs.com/member-services
UCU	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UCV	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UCW	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UCX	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UCY	Prefix Not in Use	https://www.bcbs.com/member-services
UCZ	Prefix Not in Use	https://www.bcbs.com/member-services
UDA	Premera Blue Cross	https://www.premera.com/visitor
UDB	Wellmark BCBS	https://www.wellmark.com/
UDC	BCBS of Michigan	https://www.bcbsm.com/
UDD	BCBS of Michigan	https://www.bcbsm.com/
UDE	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UDF	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UDK	Prefix Not in Use	https://www.bcbs.com/member-services
UDM	Highmark BCBS	https://www.highmarkbcbs.com/home/
UDN	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UDO	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UDP	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UDQ	BCBS of Michigan	https://www.bcbsm.com/
UDR	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UDS	Independence Blue Cross	https://www.ibx.com/index.jsp
UDT	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UDU	Prefix Not in Use	https://www.bcbs.com/member-services
UDV	Premera Blue Cross	https://www.premera.com/visitor
UDW	Regence	https://www.regence.com/member/home
UDX	BCBS of Michigan	https://www.bcbsm.com/
UDY	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UDZ	Prefix Not in Use	https://www.bcbs.com/member-services
UEB	BCBS of Massachusetts	https://home.bluecrossma.com/
UEC	Blue Shield of California	https://blueshieldcaplans.com/
UED	Wellmark BCBS	https://www.wellmark.com/
UEF	Blue Shield of California	https://blueshieldcaplans.com/
UEG	Empire BCBS of New York	https://www.empireblue.com/
UEH	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UEI	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UEJ	BCBS of Illinois	https://www.bcbsil.com/
UEK	Wellmark BCBS	https://www.wellmark.com/
UEM	BCBS of Massachusetts	https://home.bluecrossma.com/
UEN	BCBS of Massachusetts	https://home.bluecrossma.com/
UEO	Regence	https://www.regence.com/member/home
UER	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UES	Empire BCBS of New York	https://www.empireblue.com/
UEU	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UEV	Prefix Not in Use	https://www.bcbs.com/member-services
UEW	BCBS of Massachusetts	https://home.bluecrossma.com/
UEY	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UFB	BCBS of Michigan	https://www.bcbsm.com/
UFC	BCBS of Illinois	https://www.bcbsil.com/
UFD	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UFE	Prefix Not in Use	https://www.bcbs.com/member-services
UFF	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UFG	BCBS of Michigan	https://www.bcbsm.com/
UFI	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UFJ	BCBS of Michigan	https://www.bcbsm.com/
UFK	BCBS of Michigan	https://www.bcbsm.com/
UFL	BCBS of Michigan	https://www.bcbsm.com/
UFM	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UFN	Independence Blue Cross	https://www.ibx.com/index.jsp
UFO	Prefix Not in Use	https://www.bcbs.com/member-services
UFP	Independence Blue Cross	https://www.ibx.com/index.jsp
UFQ	BCBS of Michigan	https://www.bcbsm.com/
UFR	BCBS of Western New York	https://www.bcbswny.com/
UFS	BCBS of Florida	https://www.floridablue.com/
UFT	Independence Blue Cross	https://www.ibx.com/index.jsp
UFU	Excellus BCBS of New York	https://www.excellusbcbs.com/
UFV	BCBS of Michigan	https://www.bcbsm.com/
UFX	BCBS of Michigan	https://www.bcbsm.com/
UFY	Wellmark BCBS	https://www.wellmark.com/
UFZ	Highmark BCBS	https://www.highmarkbcbs.com/home/
UGA	BCBS of Florida	https://www.floridablue.com/
UGB	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UGD	BCBS of Michigan	https://www.bcbsm.com/
UGE	Prefix Not in Use	https://www.bcbs.com/member-services
UGF	BCBS of Michigan	https://www.bcbsm.com/
UGG	BCBS of Michigan	https://www.bcbsm.com/
UGH	BCBS of Michigan	https://www.bcbsm.com/
UGJ	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UGK	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UGL	Highmark BCBS	https://www.highmarkbcbs.com/home/
UGM	Prefix Not in Use	https://www.bcbs.com/member-services
UGN	BCBS of Illinois	https://www.bcbsil.com/
UGO	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UGP	BCBS of Michigan	https://www.bcbsm.com/
UGQ	Blue Cross of Idaho	https://www.bcidaho.com/
UGT	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UGU	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UGV	BCBS of Minnesota	https://www.bluecrossmn.com/
UGW	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UGX	BCBS of Illinois	https://www.bcbsil.com/
UGY	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UHA	Prefix Not in Use	https://www.bcbs.com/member-services
UHB	BCBS of Illinois	https://www.bcbsil.com/
UHC	BCBS of Michigan	https://www.bcbsm.com/
UHD	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHE	BCBS of Arizona	https://www.azblue.com/individualsandfamilies
UHF	Independence Blue Cross	https://www.ibx.com/index.jsp
UHG	Prefix Not in Use	https://www.bcbs.com/member-services
UHI	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHK	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHL	BCBS of Arizona	https://www.azblue.com/individualsandfamilies
UHN	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UHO	BCBS of Illinois	https://www.bcbsil.com/
UHP	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UHQ	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHR	Highmark BCBS	https://www.highmarkblueshield.com/home/
UHS	BCBS of Illinois	https://www.bcbsil.com/
UHT	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHU	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHV	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UHW	BCBS of Illinois	https://www.bcbsil.com/
UHX	BCBS of Minnesota	https://www.bluecrossmn.com/
UHZ	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UIB	Prefix Not in Use	https://www.bcbs.com/member-services
UIC	BCBS of Michigan	https://www.bcbsm.com/
UID	Blue Cross of Idaho	https://www.bcidaho.com/
UIF	BCBS of Florida	https://www.floridablue.com/
UII	BCBS of Michigan	https://www.bcbsm.com/
UIJ	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UIK	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UIL	BCBS of Michigan	https://www.bcbsm.com/
UIM	Premera Blue Cross	https://www.premera.com/visitor
UIN	BCBS of Michigan	https://www.bcbsm.com/
UIO	BCBS of Michigan	https://www.bcbsm.com/
UIP	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UIQ	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UIT	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UIU	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UIV	Premera Blue Cross	https://www.premera.com/visitor
UIX	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UIY	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UIZ	BCBS of Michigan	https://www.bcbsm.com/
UJB	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UJC	BCBS of Illinois	https://www.bcbsil.com/
UJD	Premera Blue Cross	https://www.premera.com/visitor
UJE	Prefix Not in Use	https://www.bcbs.com/member-services
UJF	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UJG	BCBS of Oklahoma	https://www.bcbsok.com/
UJK	Prefix Not in Use	https://www.bcbs.com/member-services
UJL	Prefix Not in Use	https://www.bcbs.com/member-services
UJP	BCBS of Illinois	https://www.bcbsil.com/
UJQ	BCBS of Texas	https://www.bcbstx.com/
UJR	Regence	https://www.regence.com/member/home
UJU	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UJV	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UJW	Prefix Not in Use	https://www.bcbs.com/member-services
UJX	Independence Blue Cross	https://www.ibx.com/index.jsp
UJY	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UJZ	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UKA	Prefix Not in Use	https://www.bcbs.com/member-services
UKB	BCBS of Massachusetts	https://home.bluecrossma.com/
UKC	BCBS of Oklahoma	https://www.bcbsok.com/
UKD	BCBS of Oklahoma	https://www.bcbsok.com/
UKF	Prefix Not in Use	https://www.bcbs.com/member-services
UKH	Empire BCBS of New York	https://www.empireblue.com/
UKJ	Empire BCBS of New York	https://www.empireblue.com/
UKK	Prefix Not in Use	https://www.bcbs.com/member-services
UKN	Blue Cross of Idaho	https://www.bcidaho.com/
UKO	Wellmark BCBS	https://www.wellmark.com/
UKP	Prefix Not in Use	https://www.bcbs.com/member-services
UKR	Prefix Not in Use	https://www.bcbs.com/member-services
UKS	Prefix Not in Use	https://www.bcbs.com/member-services
UKU	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UKV	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UKW	BCBS of Massachusetts	https://home.bluecrossma.com/
UKZ	BCBS of Alabama	https://www.bcbsal.org/web/index.html
ULA	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
ULB	Prefix Not in Use	https://www.bcbs.com/member-services
ULD	Premera Blue Cross	https://www.premera.com/visitor
ULE	BCBS of Illinois	https://www.bcbsil.com/
ULF	BCBS of Illinois	https://www.bcbsil.com/
ULG	Prefix Not in Use	https://www.bcbs.com/member-services
ULH	Prefix Not in Use	https://www.bcbs.com/member-services
ULI	Independence Blue Cross	https://www.ibx.com/index.jsp
ULJ	BCBS of Michigan	https://www.bcbsm.com/
ULK	BCBS of Western New York	https://www.bcbswny.com/
ULL	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
ULM	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
ULO	BCBS of Michigan	https://www.bcbsm.com/
ULQ	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
ULS	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
ULT	BCBS of Illinois	https://www.bcbsil.com/
ULW	Wellmark BCBS	https://www.wellmark.com/
ULX	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UMB	Blue Cross of Idaho	https://www.bcidaho.com/
UMC	BCBS of Minnesota	https://www.bluecrossmn.com/
UMD	Highmark BCBS	https://www.highmarkbcbs.com/home/
UMF	BCBS of Illinois	https://www.bcbsil.com/
UMG	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UMH	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UMJ	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UMK	BCBS of Michigan	https://www.bcbsm.com/
UMN	BCBS of Michigan	https://www.bcbsm.com/
UMO	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UMQ	Anthem BCBS of Nevada	https://www.anthem.com/individual-and-family/health-insurance/nevada/
UMR	Premera Blue Cross	https://www.premera.com/visitor
UMS	BCBS of Michigan	https://www.bcbsm.com/
UMT	BCBS of Michigan	https://www.bcbsm.com/
UMU	BCBS of Michigan	https://www.bcbsm.com/
UMV	BCBS of Michigan	https://www.bcbsm.com/
UMX	Premera Blue Cross	https://www.premera.com/visitor
UMY	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UMZ	Premera Blue Cross	https://www.premera.com/visitor
UNA	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UNB	BCBS of Nebraska	https://www.nebraskablue.com/
UND	BCBS of Minnesota	https://www.bluecrossmn.com/
UNE	BCBS of Nebraska	https://www.nebraskablue.com/
UNF	BCBS of Arizona	https://www.azblue.com/individualsandfamilies
UNG	BCBS of North Carolina	https://www.bluecrossnc.com/
UNH	Prefix Not in Use	https://www.bcbs.com/member-services
UNJ	Prefix Not in Use	https://www.bcbs.com/member-services
UNK	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UNL	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UNN	Premera Blue Cross	https://www.premera.com/visitor
UNQ	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UNR	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UNS	Empire BCBS of New York	https://www.empireblue.com/
UNT	Empire BCBS of New York	https://www.empireblue.com/
UNU	Wellmark BCBS	https://www.wellmark.com/
UNV	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UNX	Anthem BCBS of Connecticut	https://www.anthem.com/individual-and-family/health-insurance/connecticut/
UNY	Prefix Not in Use	https://www.bcbs.com/member-services
UNZ	Empire BCBS of New York	https://www.empireblue.com/
UOA	Wellmark BCBS	https://www.wellmark.com/
UOB	Wellmark BCBS	https://www.wellmark.com/
UOC	BCBS of Illinois	https://www.bcbsil.com/
UOD	Wellmark BCBS	https://www.wellmark.com/
UOE	BCBS of Illinois	https://www.bcbsil.com/
UOF	BCBS of Michigan	https://www.bcbsm.com/
UOG	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UOH	Premera Blue Cross	https://www.premera.com/visitor
UOI	Blue Cross of Idaho	https://www.bcidaho.com/
UOK	Prefix Not in Use	https://www.bcbs.com/member-services
UOM	BCBS of Michigan	https://www.bcbsm.com/
UON	Wellmark BCBS	https://www.wellmark.com/
UOO	BCBS of Michigan	https://www.bcbsm.com/
UOP	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UOQ	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UOS	Prefix Not in Use	https://www.bcbs.com/member-services
UOT	Blue Shield of California	https://blueshieldcaplans.com/
UOU	Regence	https://www.regence.com/member/home
UOW	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UOX	Anthem BCBS of Indiana	https://www.anthem.com/individual-and-family/health-insurance/indiana/
UOY	BCBS of Michigan	https://www.bcbsm.com/
UPA	BCBS of Illinois	https://www.bcbsil.com/
UPB	Independence Blue Cross	https://www.ibx.com/index.jsp
UPC	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UPD	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UPE	BCBS of Texas	https://www.bcbstx.com/
UPF	Wellmark BCBS	https://www.wellmark.com/
UPG	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UPH	BCBS of Illinois	https://www.bcbsil.com/
UPI	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UPJ	Premera Blue Cross	https://www.premera.com/visitor
UPK	BCBS of Minnesota	https://www.bluecrossmn.com/
UPL	Prefix Not in Use	https://www.bcbs.com/member-services
UPM	BCBS of Rhode Island	https://www.bcbsri.com/
UPN	Prefix Not in Use	https://www.bcbs.com/member-services
UPO	Blue Shield of Northeastern New York	https://www.bsneny.com/
UPP	BCBS of Texas	https://www.bcbstx.com/
UPQ	BCBS of Western New York	https://www.bcbswny.com/
UPR	Prefix Not in Use	https://www.bcbs.com/member-services
UPS	Wellmark BCBS	https://www.wellmark.com/
UPT	BCBS of Illinois	https://www.bcbsil.com/
UPU	Prefix Not in Use	https://www.bcbs.com/member-services
UPW	Anthem BCBS of Nevada	https://www.anthem.com/individual-and-family/health-insurance/nevada/
UPX	BCBS of Texas	https://www.bcbstx.com/
UPY	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UQA	BCBS of Western New York	https://www.bcbswny.com/
UQB	Wellmark BCBS	https://www.wellmark.com/
UQC	Prefix Not in Use	https://www.bcbs.com/member-services
UQD	Wellmark BCBS	https://www.wellmark.com/
UQE	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UQG	Prefix Not in Use	https://www.bcbs.com/member-services
UQH	Highmark BCBS	https://www.highmarkblueshield.com/home/
UQI	Prefix Not in Use	https://www.bcbs.com/member-services
UQJ	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UQK	Anthem BCBS of Connecticut	https://www.anthem.com/individual-and-family/health-insurance/connecticut/
UQL	Prefix Not in Use	https://www.bcbs.com/member-services
UQM	Anthem BCBS of Kentucky	https://www.anthem.com/individual-and-family/health-insurance/kentucky/
UQN	Capital Blue Cross	https://www.capbluecross.com/
UQO	Regence	https://www.regence.com/member/home
UQQ	BCBS of Michigan	https://www.bcbsm.com/
UQR	Prefix Not in Use	https://www.bcbs.com/member-services
UQT	BCBS of Western New York	https://www.bcbswny.com/
UQV	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UQW	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UQX	BCBS of South Carolina	https://www.southcarolinablues.com/web/public/brands/sc/
UQZ	Regence	https://www.regence.com/member/home
URA	BCBS of Illinois	https://www.bcbsil.com/
URC	Prefix Not in Use	https://www.bcbs.com/member-services
URD	Prefix Not in Use	https://www.bcbs.com/member-services
URE	BCBS of Texas	https://www.bcbstx.com/
URF	Regence	https://www.regence.com/member/home
URG	Horizon BCBS of New Jersey	https://www.horizonblue.com/
URH	Prefix Not in Use	https://www.bcbs.com/member-services
URI	Independence Blue Cross	https://www.ibx.com/index.jsp
URK	BCBS of Illinois	https://www.bcbsil.com/
URL	Excellus BCBS of New York	https://www.excellusbcbs.com/
URN	BCBS of Illinois	https://www.bcbsil.com/
URP	BCBS of Michigan	https://www.bcbsm.com/
URQ	Highmark BCBS	https://www.highmarkblueshield.com/home/
URR	BCBS of South Carolina	https://www.southcarolinablues.com/web/public/brands/sc/
URS	Blue Shield of California	https://blueshieldcaplans.com/
URT	Prefix Not in Use	https://www.bcbs.com/member-services
URU	BCBS of Michigan	https://www.bcbsm.com/
URV	BCBS of Illinois	https://www.bcbsil.com/
URW	Wellmark BCBS	https://www.wellmark.com/
URX	BCBS of Minnesota	https://www.bluecrossmn.com/
URY	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
URZ	Wellmark BCBS	https://www.wellmark.com/
USA	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
USB	Regence	https://www.regence.com/member/home
USC	Prefix Not in Use	https://www.bcbs.com/member-services
USD	Highmark BCBS	https://www.highmarkbcbsde.com/home/
USE	BCBS of Texas	https://www.bcbstx.com/
USF	Prefix Not in Use	https://www.bcbs.com/member-services
USG	Prefix Not in Use	https://www.bcbs.com/member-services
USH	BCBS of Alabama	https://www.bcbsal.org/web/index.html
USI	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
USJ	Empire BCBS of New York	https://www.empireblue.com/
USK	BCBS of South Carolina	https://www.southcarolinablues.com/web/public/brands/sc/
USL	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
USM	Blue Shield of California	https://blueshieldcaplans.com/
USN	Prefix Not in Use	https://www.bcbs.com/member-services
USO	BCBS of Florida	https://www.floridablue.com/
USP	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
USQ	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
USR	Excellus BCBS of New York	https://www.excellusbcbs.com/
USS	BCBS of Texas	https://www.bcbstx.com/
UST	BCBS of Illinois	https://www.bcbsil.com/
USV	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
USW	Highmark BCBS	https://www.highmarkbcbs.com/home/
USZ	BCBS of North Dakota	https://www.bcbsnd.com/
UTA	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UTC	Prefix Not in Use	https://www.bcbs.com/member-services
UTD	BCBS of Illinois	https://www.bcbsil.com/
UTE	Prefix Not in Use	https://www.bcbs.com/member-services
UTL	BCBS of Illinois	https://www.bcbsil.com/
UTM	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UTN	BCBS of Illinois	https://www.bcbsil.com/
UTP	Prefix Not in Use	https://www.bcbs.com/member-services
UTR	Independence Blue Cross	https://www.ibx.com/index.jsp
UTS	BCBS of Texas	https://www.bcbstx.com/
UTT	Anthem BCBS of Indiana	https://www.anthem.com/individual-and-family/health-insurance/indiana/
UTU	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UTW	BCBS of Michigan	https://www.bcbsm.com/
UTX	Anthem BCBS of Connecticut	https://www.anthem.com/individual-and-family/health-insurance/connecticut/
UTZ	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UUA	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UUC	BCBS of Oklahoma	https://www.bcbsok.com/
UUD	Prefix Not in Use	https://www.bcbs.com/member-services
UUE	Blue Shield of California	https://blueshieldcaplans.com/
UUH	BCBS of Florida	https://www.floridablue.com/
UUI	BCBS of North Carolina	https://www.bluecrossnc.com/
UUJ	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UUL	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UUM	Prefix Not in Use	https://www.bcbs.com/member-services
UUN	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UUO	BCBS of Michigan	https://www.bcbsm.com/
UUQ	Blue Shield of California	https://blueshieldcaplans.com/
UUR	Prefix Not in Use	https://www.bcbs.com/member-services
UUS	Blue Shield of California	https://blueshieldcaplans.com/
UUT	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UUV	Prefix Not in Use	https://www.bcbs.com/member-services
UUX	BCBS of Illinois	https://www.bcbsil.com/
UUY	Prefix Not in Use	https://www.bcbs.com/member-services
UUZ	BCBS of Michigan	https://www.bcbsm.com/
UVA	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UVC	Independence Blue Cross	https://www.ibx.com/index.jsp
UVD	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UVF	Unknown Assignment	https://www.bcbs.com/
UVG	Wellmark BCBS	https://www.wellmark.com/
UVH	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UVI	BCBS of Michigan	https://www.bcbsm.com/
UVJ	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UVM	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UVN	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UVS	BCBS of Illinois	https://www.bcbsil.com/
UVT	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UVU	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UVV	Wellmark BCBS	https://www.wellmark.com/
UVX	Prefix Not in Use	https://www.bcbs.com/member-services
UVY	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UWA	BCBS of Michigan	https://www.bcbsm.com/
UWB	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWC	Anthem BCBS of Wisconsin	https://www.anthem.com/individual-and-family/wisconsin/
UWD	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UWE	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWF	BCBS of Michigan	https://www.bcbsm.com/
UWG	BCBS of Michigan	https://www.bcbsm.com/
UWH	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWI	Prefix Not in Use	https://www.bcbs.com/member-services
UWL	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWM	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UWN	BCBS of Illinois	https://www.bcbsil.com/
UWO	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWQ	Empire BCBS of New York	https://www.empireblue.com/
UWR	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWT	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UWU	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UWV	Prefix Not in Use	https://www.bcbs.com/member-services
UWW	BCBS of Michigan	https://www.bcbsm.com/
UWX	BCBS of Rhode Island	https://www.bcbsri.com/
UWY	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UWZ	BCBS of Florida	https://www.floridablue.com/
UXA	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UXB	BCBS of Alabama	https://www.bcbsal.org/web/index.html
UXD	BCBS of South Carolina	https://www.southcarolinablues.com/web/public/brands/sc/
UXE	BCBS of Tennessee	https://www.bcbst.com/get-insurance/index.page
UXF	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UXH	Wellmark BCBS	https://www.wellmark.com/
UXI	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UXK	Prefix Not in Use	https://www.bcbs.com/member-services
UXL	Highmark BCBS	https://www.highmarkbcbs.com/home/
UXM	BCBS of Illinois	https://www.bcbsil.com/
UXN	Prefix Not in Use	https://www.bcbs.com/member-services
UXQ	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UXR	Wellmark BCBS	https://www.wellmark.com/
UXS	Premera Blue Cross	https://www.premera.com/visitor
UXT	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UXU	BCBS of Illinois	https://www.bcbsil.com/
UXV	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UXW	Horizon BCBS of New Jersey	https://www.horizonblue.com/
UXY	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UXZ	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UYA	BCBS of Illinois	https://www.bcbsil.com/
UYC	Empire BCBS of New York	https://www.empireblue.com/
UYF	Anthem Blue Cross of California	https://www.anthem.com/ca/individual-and-family/health-insurance/california/
UYG	Anthem BCBS of Virginia	https://www.anthem.com/individual-and-family/health-insurance/virginia/
UYH	Anthem BCBS of Ohio	https://www.anthem.com/individual-and-family/health-insurance/ohio
UYI	BCBS of Michigan	https://www.bcbsm.com/
UYJ	Regence	https://www.regence.com/member/home
UYK	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UYM	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UYN	Prefix Not in Use	https://www.bcbs.com/member-services
UYO	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UYQ	BCBS of Louisiana	https://www.bcbsla.com/
UYU	BCBS of Arizona	https://www.azblue.com/individualsandfamilies
UYV	Wellmark BCBS	https://www.wellmark.com/
UYX	Anthem BCBS of Missouri	https://www.anthem.com/individual-and-family/health-insurance/missouri/
UYZ	Blue Cross of Idaho	https://www.bcidaho.com/
UZA	Prefix Not in Use	https://www.bcbs.com/member-services
UZB	Wellmark BCBS	https://www.wellmark.com/
UZD	Blue Shield of California	https://blueshieldcaplans.com/
UZE	Highmark BCBS	https://www.highmarkblueshield.com/home/
UZF	Prefix Not in Use	https://www.bcbs.com/member-services
UZH	Wellmark BCBS	https://www.wellmark.com/
UZI	Prefix Not in Use	https://www.bcbs.com/member-services
UZJ	Prefix Not in Use	https://www.bcbs.com/member-services
UZK	Wellmark BCBS	https://www.wellmark.com/
UZL	BCBS of South Carolina	https://www.southcarolinablues.com/web/public/brands/sc/
UZM	BCBS of Louisiana	https://www.bcbsla.com/
UZN	BCBS of Florida	https://www.floridablue.com/
UZO	Anthem BCBS of Georgia	https://www.anthem.com/individual-and-family/health-insurance/georgia/
UZQ	Anthem BCBS of Connecticut	https://www.anthem.com/individual-and-family/health-insurance/connecticut/
UZR	Carefirst BCBS of Maryland	https://individual.carefirst.com/individuals-families/home.page
UZS	BCBS of Texas	https://www.bcbstx.com/
UZT	Anthem BCBS of Colorado	https://www.anthem.com/individual-and-family/health-insurance/colorado/
UZW	BCBS of Michigan	https://www.bcbsm.com/
UZY	BCBS of Michigan	https://www.bcbsm.com/
UZZ	BCBS of Texas	https://www.bcbstx.com/

Conclusion

The BCBS alpha prefixes are essential tools for healthcare providers and medical billers. Understanding these prefixes helps streamline the billing process and improve payment accuracy. For any questions or assistance, feel free to reach out to our support at support@texmed.us.