HL7 v2.3.1 Vocabulary
0.1.0 - ci-build

HL7 v2.3.1 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.v231/ and changes regularly. See the Directory of published versions

## CodeSystem: Identifier Type (2.3.1 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/identifierType | Version: 1.1.0
Active as of 2026-01-27 | Computable Name: IdentifierType
Other Identifiers: OID:2.16.840.1.113883.18.108
Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts specifying type of identifier. Used in HL7 Version 2.x messaging data types CX, PLN, PPN, XCN and XON.

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

- Hl7VSidentifierType

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
class | class | http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#class | code | class

Concepts

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

Code | Display | Definition | versionIntroduced | Deutsch (German, de)
AM | American Express | American Express | 2.3 | American Express
AN | Account number | Account number | 2.3 | Kontonummer
BR | Birth registry number | Birth registry number | 2.3 | Geburtsregisternummer
DI | Diner’s Club card | Diner’s Club card | 2.3 | Diners Club
DL | Driver’s license number | Driver’s license number | 2.3 | Führerscheinnummer
DN | Doctor number | Doctor number | 2.3 | Arztnummer
DS | Discover Card | Discover Card | 2.3 | Discover Card
EI | Employee number | Employee number | 2.3 | Arbeitnehmernummer
EN | Employer number | Employer number | 2.3 | Arbeitgebernummer
FI | Facility ID | Facility ID | 2.3.1 |
GI | Guarantor internal identifier | Guarantor internal identifier | 2.3 | interne ID des Zahlungspflichtigen
GN | Guarantor external identifier | Guarantor external identifier | 2.3 | externe ID des Zahlungspflichtigen
LN | License number | License number | 2.3.1 |
LR | Local Registry ID | Local Registry ID | 2.3.1 |
MA | Medicaid number | Medicaid number | 2.3 | Armennummer
MC | Medicare number | Medicare number | 2.3 | Rentnernummer
MR | Medical record number | Medical record number | 2.3 | Krankenaktennummer
MS | MasterCard | MasterCard | 2.3 | MasterCard
NE | National employer identifier | National employer identifier | 2.3.1 |
NH | National Health Plan Identifier | National Health Plan Identifier | 2.3.1 |
NI | National unique individual identifier | National unique individual identifier | 2.3.1 |
NNxxx | National Person Identifier where the xxx is the ISO table 3166 3-character (alphabetic) country code | National Person Identifier where the xxx is the ISO table 3166 3-character (alphabetic) country code | 2.3.1 |
NPI | National provider identifier | National provider identifier | 2.3.1 |
PI | Patient internal identifier | Patient internal identifier | 2.3 | interne Patienten-ID
PN | Person number | Person number | 2.3.1 | Personen-ID
PRN | Provider number | Provider number | 2.3.1 |
PT | Patient external identifier | Patient external identifier | 2.3 | externe Patienten-ID
RR | Railroad Retirement number | Railroad Retirement number | 2.3 | Seniorenkartennummer
RRI | Regional registry ID | Regional registry ID | 2.3.1 |
SL | State license | State license | 2.3.1 |
SR | State registry ID | State registry ID | 2.3.1 |
SS | Social Security number | Social Security number | 2.3 | Sozialversicherungsnummer
U | Unspecified | Unspecified | 2.3.1 |
UPIN | Medicare/HCFA’s Universal Physician Identification numbers | Medicare/HCFA’s Universal Physician Identification numbers | 2.3.1 |
VN | Visit number | Visit number | 2.3 | Fallnummer
VS | VISA | VISA | 2.3 | VISA
WC | WIC identifier | WIC identifier | 2.3.1 |
XX | Organization identifier | Organization identifier | 2.3 | Organisations-ID