HL7 Terminology
2.1.0 - Publication

This page is part of the HL7 Terminology (v2.1.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

CodeSystem: identityReliability


Defining URL:http://terminology.hl7.org/CodeSystem/v2-0445
Status:Active as of 2019-12-01

Code system of concepts specifying the reliability of patient/person identifying data transmitted via a transaction. Used in HL7 Version 2.x messaging in the PID segment.

Publisher:HL7, Inc
Committee:Patient Administration

Copyright HL7. Licensed under creative commons public domain

Content:Complete: All the concepts defined by the code system are included in the code system resource
OID:2.16.840.1.113883.18.285 (for OID based terminology systems)
Value Set:http://terminology.hl7.org/ValueSet/v2-0445 ( is the value set for all codes in this code system)
Source Resource:XML / JSON / Turtle

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


statushttp://terminology.hl7.org/CodeSystem/utg-concept-properties#statusStatus of the conceptcode
deprecatedhttp://terminology.hl7.org/CodeSystem/utg-concept-properties#v2-table-deprecatedVersion of HL7 in which the code was deprecatedcode

This code system http://terminology.hl7.org/CodeSystem/v2-0445 defines the following codes:

US Unknown/Default Social Security NumberUnknown/Default Social Security Number
UD Unknown/Default Date of BirthUnknown/Default Date of Birth
UA Unknown/Default AddressUnknown/Default Address
AL Patient/Person Name is an AliasPatient/Person Name is an Alias


2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.