CARIN Consumer Directed Payer Data Exchange (CARIN IG for Blue ButtonĀ®)
2.0.0 - STU 2 United States of America flag

CARIN Consumer Directed Payer Data Exchange (CARIN IG for Blue ButtonĀ®), published by HL7 Financial Management Working Group. This is not an authorized publication; it is the continuous build for version 2.0.0). This version is based on the current content of and changes regularly. See the Directory of published versions

CodeSystem: C4BB Identifier Type Code System

Official URL: Version: 2.0.0
Active as of 2023-08-02 Computable Name: C4BBIdentifierType

Copyright/Legal: This CodeSystem is not copyrighted.

Identifier Type codes that extend those defined in to define the type of identifier payers and providers assign to claims and patients.

This is a code system defined locally by the CARIN BlueButton IG. As this IG matures, it is expected that this CodeSystem will be migrated to THO ( The current CodeSystem url should be considered temporary and subject to change in a future version.

This Code system is referenced in the content logical definition of the following value sets:

This code system defines the following codes:

payerid Payer IDPayer ID used in HIPAA covered claims submission transactions
naiccode NAIC CodeAn identifier assigned to licensed and authorized insurance companies by the National Association of Insurance Commissioners (NAIC).
pat Patient Account NumberPatient Account Number
um Unique Member IDIndicates that the patient identifier is a unique member identifier assigned by a payer across all lines of business
uc Unique Claim IDIndicates that the claim identifier is that assigned by a payer for a claim received from a provider or subscriber