HL7 v2.4 Vocabulary
0.1.0 - ci-build

HL7 v2.4 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.v24/ and changes regularly. See the Directory of published versions

## CodeSystem: Data Types (2.4 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/dataTypes | Version: 1.0.0
Active as of 2026-01-27 | Computable Name: DataTypes
Other Identifiers: OID:2.16.840.1.113883.18.280
Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts specifying the format of the observation value in the Observation Result (OBX). Used in HL7 Version 2.x messaging in the OBX, OM1, OM3 and OMC segments.

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

- Hl7VSdataTypes

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/dataTypes` defines the following codes:

Code | Display | Definition | versionIntroduced | status | modified
AD | Address | Address | 2.4 |  |
CD | Channel definition | Channel definition | 2.4 |  |
CE | Coded element | Coded element | 2.4 |  |
CF | Coded element with formatted values | Coded element with formatted values | 2.4 |  |
CK | Composite ID with check digit | Composite ID with check digit | 2.4 |  |
CM | Composite | Composite | 2.4 | inactive | 2020-09-23
CN | Composite ID number and name | Composite ID number and name | 2.4 |  |
CNE | Coded with no exceptions | Coded with no exceptions | 2.4 |  |
CP | Composite price | Composite price | 2.4 |  |
CQ | Composite quantity with units | Composite quantity with units | 2.4 |  |
CWE | Coded with exceptions | Coded with exceptions | 2.4 |  |
CX | Extended composite ID with check digit | Extended composite ID with check digit | 2.4 |  |
DLN | Driver's license number | Driver's license number | 2.4 |  |
DR | Date/time range | Date/time range | 2.4 |  |
DT | Date | Date | 2.4 |  |
ED | Encapsulated data | Encapsulated data | 2.4 |  |
EI | Entity identifier | Entity identifier | 2.4 |  |
FC | Financial class | Financial class | 2.4 |  |
FN | Family name | Family name | 2.4 |  |
FT | Formatted text | Formatted text | 2.4 |  |
HD | Hierarchic designator | Hierarchic designator | 2.4 |  |
ID | Coded values for HL7 tables | Coded values for HL7 tables | 2.4 |  |
IS | Coded value for user-defined tables | Coded value for user-defined tables | 2.4 |  |
JCC | Job code/class | Job code/class | 2.4 |  |
MA | Multiplexed array | Multiplexed array | 2.4 |  |
MO | Money | Money | 2.4 |  |
NA | Numeric array | Numeric array | 2.4 |  |
NM | Numeric | Numeric | 2.4 |  |
PL | Person location | Person location | 2.4 |  |
PN | Person name | Person name | 2.4 |  |
PPN | Performing person time stamp | Performing person time stamp | 2.4 |  |
PT | Processing type | Processing type | 2.4 |  |
QIP | Query input parameter list | Query input parameter list | 2.4 |  |
QSC | Query selection criteria | Query selection criteria | 2.4 |  |
RCD | Row column definition | Row column definition | 2.4 |  |
RI | Repeat interval | Repeat interval | 2.4 |  |
RP | Reference pointer | Reference pointer | 2.4 |  |
SAD | Street Address | Street Address | 2.4 |  |
SCV | Scheduling class value pair | Scheduling class value pair | 2.4 |  |
SI | Sequence ID | Sequence ID | 2.4 |  |
SN | Structured numeric | Structured numeric | 2.4 |  |
SRT | Sort order | Sort order | 2.4 |  |
ST | String | String | 2.4 |  |
TM | Time | Time | 2.4 |  |
TN | Telephone number | Telephone number | 2.4 |  |
TQ | Timing/quantity | Timing/quantity | 2.4 |  |
TS | Time stamp | Time stamp | 2.4 |  |
TX | Text data | Text data | 2.4 |  |
VH | Visiting hours | Visiting hours | 2.4 |  |
VID | Version identifier | Version identifier | 2.4 |  |
XAD | Extended address | Extended address | 2.4 |  |
XCN | Extended composite ID number and name | Extended composite ID number and name | 2.4 |  |
XON | Extended composite name and ID number for organizations | Extended composite name and ID number for organizations | 2.4 |  |
XPN | Extended person name | Extended person name | 2.4 |  |
XTN | Extended telecommunications number | Extended telecommunications number | 2.4 |  |