This page is part of the HL7 Terminology (v1.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

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<NamingSystem xmlns="http://hl7.org/fhir">
  <id value="ICD-10DualCoding"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: ICD-10DualCoding</p><p><b>name</b>: ICD10DualCoding</p><p><b>status</b>: active</p><p><b>kind</b>: codesystem</p><p><b>date</b>: Mar 20, 2019, 12:00:00 AM</p><p><b>publisher</b>: HL7</p><p><b>contact</b>: HL7,HL7,HL7,HL7,HL7,HL7,HL7,HL7: </p><p><b>responsible</b>: HL7</p><p><b>description</b>: ICD-10 allows dual coding. Refer to Section 3.1.3 of the ICD-10 Instruction Manual (2nd Edition, http://www.who.int/entity/classifications/icd/ICD-10\_2nd\_ed\_volume2.pdf).

This OID identifies the code system that describes how to encode Dual Coding in a CD compatible expression (for Datatypes R2 CD only).

An ICD-10 dual code expression SHALL consist of two ICD-10 codes separated by space. This code system SHALL NOT be used for single ICD-10 codes; the normal ICD-10 code system oid which is 2.16.840.1.113883.6.3 should be used in this case.

Dual code expressions SHALL only be used per the rules described in the ICD-10 instruction manual.

**An example CD:**&lt;br&gt;&lt;/br&gt; &lt;example code="J21.8 B95.6" codeSystem="2.16.840.1.113883.6.260"&gt;&lt;br&gt;&lt;/br&gt; &lt;originalText value="Staph aureus bronchiolitis"/&gt;&lt;br&gt;&lt;/br&gt; &lt;/example&gt;&lt;br&gt;&lt;/br&gt;&lt;br&gt;&lt;/br&gt; Where:&lt;br&gt;&lt;/br&gt; J21.8 is: Acute bronchiolitis due to other specified organisms&lt;br&gt;&lt;/br&gt; B95.6 is: Staphylococcus aureus as the cause of diseases classified to other chapters</p><blockquote><p><b>uniqueId</b></p><p><b>type</b>: oid</p><p><b>value</b>: 2.16.840.1.113883.6.260</p><p><b>preferred</b>: true</p></blockquote><blockquote><p><b>uniqueId</b></p><p><b>type</b>: uri</p><p><b>value</b>: http://terminology.hl7.org/CodeSystem/ICD-10DualCoding</p><p><b>preferred</b>: true</p></blockquote></div>
  </text>
  <extension
             url="http://terminology.hl7.org/StructureDefinition/ext-namingsystem-title">
    <valueString value="ICD-10 Dual Coding"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.url">
    <valueUri value="http://terminology.hl7.org/NamingSystem/ICD-10DualCoding"/>
  </extension>
  <extension
             url="http://terminology.hl7.org/StructureDefinition/ext-namingsystem-version">
    <valueString value="2.0.0"/>
  </extension>
  <name value="ICD10DualCoding"/>
  <status value="active"/>
  <kind value="codesystem"/>
  <date value="2019-03-20T00:00:00-04:00"/>
  <publisher value="HL7"/>
  <contact>
    <name value="HL7,HL7,HL7,HL7,HL7,HL7,HL7,HL7"/>
  </contact>
  <responsible value="HL7"/>
  <description
               value="ICD-10 allows dual coding. Refer to Section 3.1.3 of the ICD-10 Instruction Manual (2nd Edition, http://www.who.int/entity/classifications/icd/ICD-10\_2nd\_ed\_volume2.pdf).

This OID identifies the code system that describes how to encode Dual Coding in a CD compatible expression (for Datatypes R2 CD only).

An ICD-10 dual code expression SHALL consist of two ICD-10 codes separated by space. This code system SHALL NOT be used for single ICD-10 codes; the normal ICD-10 code system oid which is 2.16.840.1.113883.6.3 should be used in this case.

Dual code expressions SHALL only be used per the rules described in the ICD-10 instruction manual.

**An example CD:**&lt;br&gt;&lt;/br&gt; &lt;example code=&quot;J21.8 B95.6&quot; codeSystem=&quot;2.16.840.1.113883.6.260&quot;&gt;&lt;br&gt;&lt;/br&gt; &lt;originalText value=&quot;Staph aureus bronchiolitis&quot;/&gt;&lt;br&gt;&lt;/br&gt; &lt;/example&gt;&lt;br&gt;&lt;/br&gt;&lt;br&gt;&lt;/br&gt; Where:&lt;br&gt;&lt;/br&gt; J21.8 is: Acute bronchiolitis due to other specified organisms&lt;br&gt;&lt;/br&gt; B95.6 is: Staphylococcus aureus as the cause of diseases classified to other chapters"/>
  <uniqueId>
    <type value="oid"/>
    <value value="2.16.840.1.113883.6.260"/>
    <preferred value="true"/>
  </uniqueId>
  <uniqueId>
    <type value="uri"/>
    <value value="http://terminology.hl7.org/CodeSystem/ICD-10DualCoding"/>
    <preferred value="true"/>
  </uniqueId>
</NamingSystem>