HL7 v2.5.1 Vocabulary
0.1.0 - ci-build

HL7 v2.5.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v251/ and changes regularly. See the Directory of published versions

## CodeSystem: Military Service (2.5.1 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/militaryService | Version: 1.1.0
Active as of 2026-01-27 | Computable Name: MilitaryService
Other Identifiers: OID:2.16.840.1.113883.18.62
Copyright/Legal: HL7 Inc., 2026

Code system of concepts which specify the military branch. This field is defined by CMS or other regulatory agencies. Used in HL7 Version 2.x messaging in the PD1 segment.

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

- Hl7VSmilitaryService

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type | Description
versionIntroduced | versionIntroduced | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced | string | version when was this code introduced
versionDeprecated | versionDeprecated | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated | string | version when was this code deprecated
status | status | http://hl7.org/fhir/concept-properties#status | code | A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment | comment | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment | string | A string that provides additional detail pertinent to the use or understanding of the concept
usage | usage | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage | string | usage notes for this code
modified | modified | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified | dateTime | date of last modification

Concepts

This case-sensitive code system `http://terminology.hl7.org/v2plusvocab/CodeSystem/militaryService` defines the following codes:

Code | Display | Definition | versionIntroduced
AUSA | Australian Army | Australian Army | 2.4
AUSAF | Australian Air Force | Australian Air Force | 2.4
AUSN | Australian Navy | Australian Navy | 2.4
NATO | North Atlantic Treaty Organization | North Atlantic Treaty Organization | 2.3.1
NOAA | National Oceanic and Atmospheric Administration | National Oceanic and Atmospheric Administration | 2.3.1
USA | US Army | US Army | 2.3.1
USAF | US Air Force | US Air Force | 2.3.1
USCG | US Coast Guard | US Coast Guard | 2.3.1
USMC | US Marine Corps | US Marine Corps | 2.3.1
USN | US Navy | US Navy | 2.3.1
USPHS | US Public Health Service | US Public Health Service | 2.3.1