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: Alternate Character Sets (2.4 - 1.1.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSets Version: 1.1.0
Active as of 2026-01-27 Computable Name: AlternateCharacterSets
Other Identifiers: OID:2.16.840.1.113883.18.116

Copyright/Legal: HL7 Inc., 2026

HL7-defined code system of concepts used to specify the character set(s) in use. Includes both single-byte and double-byte characters sets, and used in Version 2.x messaging in the MSH segment.

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

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
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/alternateCharacterSets defines the following codes:

CodeDisplayDefinitionversionIntroducedcommentmodified
8859/1 The printable characters from the ISO 8859/1 Character set The printable characters from the ISO 8859/1 Character set 2.3
8859/2 The printable characters from the ISO 8859/2 Character set The printable characters from the ISO 8859/2 Character set 2.3
8859/3 The printable characters from the ISO 8859/3 Character set The printable characters from the ISO 8859/3 Character set 2.3
8859/4 The printable characters from the ISO 8859/4 Character set The printable characters from the ISO 8859/4 Character set 2.3
8859/5 The printable characters from the ISO 8859/5 Character set The printable characters from the ISO 8859/5 Character set 2.3
8859/6 The printable characters from the ISO 8859/6 Character set The printable characters from the ISO 8859/6 Character set 2.3
8859/7 The printable characters from the ISO 8859/7 Character set The printable characters from the ISO 8859/7 Character set 2.3
8859/8 The printable characters from the ISO 8859/8 Character set The printable characters from the ISO 8859/8 Character set 2.3
8859/9 The printable characters from the ISO 8859/9 Character set The printable characters from the ISO 8859/9 Character set 2.3
ASCII The printable 7-bit ASCII character set The printable 7-bit ASCII character set 2.3 This is the default if this field is omitted
ISO IR14 Code for Information Exchange (one byte)(JIS X 0201-1976). Code for Information Exchange (one byte)(JIS X 0201-1976). Note that the code contains a space, i.e. "ISO IR14". 2.3.1
ISO IR159 Code of the supplementary Japanese Graphic Character set for information interchange (JIS X 0212-1990). Code of the supplementary Japanese Graphic Character set for information interchange (JIS X 0212-1990). 2.3.1 Note that the code contains a space, i.e. "ISO IR159".
ISO IR87 Code for the Japanese Graphic Character set for information interchange (JIS X 0208-1990), Note that the code contains a space, i.e. "ISO IR87". Code for the Japanese Graphic Character set for information interchange (JIS X 0208-1990), Note that the code contains a space, i.e. "ISO IR87". 2.3.1
JAS2020 A subset of ISO2020 used for most Kanjii transmissions A subset of ISO2020 used for most Kanjii transmissions 2.3 2025-07-30
JIS X 0202 ISO 2022 with escape sequences for Kanjii ISO 2022 with escape sequences for Kanjii 2.3 2025-07-30
UNICODE The world wide character standard from ISO/IEC 10646-1-1993 The world wide character standard from ISO/IEC 10646-1-1993 2.3