This is the CodeSystem that contains codes in both C4BB Identifier Type Code System (http://hl7.org/fhir/us/carin-bb/CodeSystem/C4BBIdentifierType) and C4BB Identifier Type Code System (http://hl7.org/fhir/us/carin-bb/CodeSystem/C4BBIdentifierType).
This code system http://hl7.org/fhir/comparison/CodeSystem/8a0e78cf-14e1-4c1a-a1d4-119117c1bc1a-21 defines codes, but no codes are represented here
| Code | Display | Definition |
| payerid | Payer ID | Payer ID used in HIPAA covered claims submission transactions |
| naiccode | NAIC Code | An identifier assigned to licensed and authorized insurance companies by the National Association of Insurance Commissioners (NAIC). |
| pat | Patient Account Number | Patient Account Number |
| um | Unique Member ID | Indicates that the patient identifier is a unique member identifier assigned by a payer across all lines of business |
| uc | Unique Claim ID | Indicates that the claim identifier is that assigned by a payer for a claim received from a provider or subscriber |