Interoperable Digital Identity and Patient Matching
2.0.0 - STU 2

Interoperable Digital Identity and Patient Matching - Downloaded Version 2.0.0 See the Directory of published versions

## CodeSystem: Identity Identifier Code System

Official URL: http://hl7.org/fhir/us/identity-matching/CodeSystem/Identity-Identifier-cs | Version: 2.0.0
Standards status: Trial-use | Maturity Level: 2 | Computable Name: IdentityIdentifierCodeSystem

Defining codes for describing specialized identifiers to be used in Patient resource for $idi-match.

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

- IdentityIdentifierValueSet

This case-insensitive code system `http://hl7.org/fhir/us/identity-matching/CodeSystem/Identity-Identifier-cs` defines the following codes:

Code | Display | Definition
STID | State Level Identifier | Represents any appropriate identifier corresponding to a state- or territory-issued photo ID that is not a Driver's License. This code will likely be migrated to THO at some point in the future.
SSN4 | SSN Last 4 | Represents the last four digits of US Social Security Number. This code may be migrated to THO at some point in the future.