v2+ Vocabulary
0.3.0 - Working Draft to present the concept ideas (FO)

v2+ Vocabulary - Local Development build (v0.3.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

CodeSystem: Alternate Character Set Handling Scheme (2.3.1 - 1.0.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/AlternateCharacterSetHandlingSchemeV100 Version: 1.0.0
Active as of 2025-03-06 Computable Name: AlternateCharacterSetHandlingSchemeV100
Other Identifiers: http://hl7.org/oid#urn:oid:2.16.840.1.113883.18.216

Copyright/Legal: HL7 Inc., 2024

HL7-defined code system of concept that specify the scheme used when any alternative character sets are specified in the second or later iterations of MSH-18 Character Set, and if any special handling scheme is needed. Used in HL7 Version 2.x messaging in the MSH segment.

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

Generated Narrative: CodeSystem AlternateCharacterSetHandlingSchemeV100

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
version introduced 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 current status of this code
comment comment http://hl7.org/fhir/concept-properties#comment string further comment on this code
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/AlternateCharacterSetHandlingSchemeV100 defines the following codes:

CodeDisplayDefinitionversion introducedcommentmodified
2.3 The character set switching mode specified in HL7 2.3, sections 2.8.28.6.1, and 2.9.2. The character set switching mode specified in HL7 2.3, sections 2.8.28.6.1, and 2.9.2. 2.3.1 Note that the escape sequences used in this mode are "HL7 escapes sequences" as defined in HL7 2.3, sec. 2.9, and do not use the ASCII "esc" character, as defined in ISO 2022-1994 2023-10-04
ISO 2022-1994 This standard is titled "Information Technology - Character Code Structure and Extension Technique". This standard is titled "Information Technology - Character Code Structure and Extension Technique". 2.3.1 This standard specifies an escape sequence from basic one byte character set to specified other character set, and vice versa. The escape sequence explicitly specifies what alternate character set to be evoked. Note that in this mode, the actual ASCII escape character is used as defined in the referenced ISO document. As noted in 1.6.1., escape sequences to/from alternate character set should occur within HL7 delimiters. In other words, HL7 delimiters are basic one byte characters only, and just before and just after delimiters, character encoding status should be the basic one byte set. This value is allowed only for HL7 v. 2.3.1. 2023-10-04