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

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: Alternate Character Set Handling Scheme (2.3.1 - 1.0.0) - XML Representation

Active as of 2025-08-05

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="alternateCharacterSetHandlingSchemeV100"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><ul><li>Include all codes defined in <a href="CodeSystem-alternateCharacterSetHandlingSchemeV100.html"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSetHandlingSchemeV100</code></a></li></ul></div>
  </text>
  <extension
             url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated">
    <valueString value="2.3.1"/>
  </extension>
  <extension
             url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory">
    <valueString value="generate correct history somehow"/>
  </extension>
  <extension
             url="http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo">
    <valueString value="0356"/>
  </extension>
  <url
       value="http://terminology.hl7.org/v2plusvocab/CodeSystem/alternateCharacterSetHandlingSchemeV100"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.18.216"/>
  </identifier>
  <version value="1.0.0"/>
  <name value="AlternateCharacterSetHandlingSchemeV100"/>
  <title value="Alternate Character Set Handling Scheme (2.3.1 - 1.0.0)"/>
  <status value="active"/>
  <experimental value="true"/>
  <date value="2025-08-05T15:14:51+02:00"/>
  <description
               value="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."/>
  <copyright value="HL7 Inc., 2024"/>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <property>
    <code value="versionIntroduced"/>
    <uri
         value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced"/>
    <description value="version when was this code introduced"/>
    <type value="string"/>
  </property>
  <property>
    <code value="versionDeprecated"/>
    <uri
         value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated"/>
    <description value="version when was this code deprecated"/>
    <type value="string"/>
  </property>
  <property>
    <code value="status"/>
    <uri value="http://hl7.org/fhir/concept-properties#status"/>
    <description
                 value="A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired"/>
    <type value="code"/>
  </property>
  <property>
    <code value="comment"/>
    <uri
         value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment"/>
    <description
                 value="A string that provides additional detail pertinent to the use or understanding of the concept"/>
    <type value="string"/>
  </property>
  <property>
    <code value="usage"/>
    <uri
         value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage"/>
    <description value="usage notes for this code"/>
    <type value="string"/>
  </property>
  <property>
    <code value="modified"/>
    <uri
         value="http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified"/>
    <description value="date of last modification"/>
    <type value="dateTime"/>
  </property>
  <concept>
    <code value="2.3"/>
    <display value="The character set switching mode specified in HL7 2.3"/>
    <definition
                value="The character set switching mode specified in HL7 2.3, sections 2.8.28.6.1, and 2.9.2."/>
    <property>
      <code value="comment"/>
      <valueString
                   value="Note that the escape sequences used in this mode are &quot;HL7 escapes sequences&quot; as defined in HL7 2.3, sec.  2.9, and do not use the ASCII &quot;esc&quot; character, as defined in ISO 2022-1994"/>
    </property>
    <property>
      <code value="modified"/>
      <valueDateTime value="2023-10-04"/>
    </property>
    <property>
      <code value="versionIntroduced"/>
      <valueString value="2.3.1"/>
    </property>
  </concept>
  <concept>
    <code value="ISO 2022-1994"/>
    <display
             value="This standard is titled &quot;Information Technology - Character Code Structure and Extension Technique&quot;."/>
    <definition
                value="This standard is titled &quot;Information Technology - Character Code Structure  and Extension Technique&quot;."/>
    <property>
      <code value="comment"/>
      <valueString
                   value="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."/>
    </property>
    <property>
      <code value="modified"/>
      <valueDateTime value="2023-10-04"/>
    </property>
    <property>
      <code value="versionIntroduced"/>
      <valueString value="2.3.1"/>
    </property>
  </concept>
</CodeSystem>