HL7 v2.4 Vocabulary
0.2.0 - ci-build
HL7 v2.4 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 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
| Official URL: http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VSalternateCharacterSetHandlingScheme | Version: 1.0.0 | |||
| Active as of 2026-03-13 | Computable Name: Hl7VSalternateCharacterSetHandlingScheme | |||
| Other Identifiers: OID:2.16.840.1.113883.21.232, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/ValueSet/v2-0356 | ||||
Copyright/Legal: HL7 Inc., 2026 |
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Concepts 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.
References
This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)
http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSetHandlingScheme version 📍1.0.0
Expansion performed internally based on codesystem Alternate Character Set Handling Scheme (2.4 - 1.0.0) v1.0.0 (CodeSystem)
This value set contains 2 concepts
| System | Code | Display (en) | Definition | JSON | XML |
http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSetHandlingScheme | 2.3 | The character set switching mode specified in HL7 2.3 | The character set switching mode specified in HL7 2.3, sections 2.8.28.6.1, and 2.9.2. Note that the escape sequences used in this mode do not use the ASCII "esc" character. They are "HL7 escape sequences" as defined in HL7 2.3, sec. 2.9 as defined in I | ||
http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSetHandlingScheme | 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". This standard specifies an escape sequence from basic one byte character set to specified other character set, and vice versa. |
Explanation of the columns that may appear on this page:
| Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies |
| System | The source of the definition of the code (when the value set draws in codes defined elsewhere) |
| Code | The code (used as the code in the resource instance) |
| Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application |
| Definition | An explanation of the meaning of the concept |
| Comments | Additional notes about how to use the code |