<?xml version="1.0" encoding="UTF-8"?>

<NamingSystem xmlns="http://hl7.org/fhir">
  <id value="ICD-9DualCoding"/>
  <text>
    <status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: NamingSystem ICD-9DualCoding</b></p><a name="ICD-9DualCoding"> </a><a name="hcICD-9DualCoding"> </a><a name="ICD-9DualCoding-en-US"> </a><h3>Summary</h3><table class="grid"><tr><td>Defining URL</td><td>http://terminology.hl7.org/NamingSystem/ICD-9DualCoding</td></tr><tr><td>Version</td><td>2.1.0</td></tr><tr><td>Name</td><td>ICD9DualCoding</td></tr><tr><td>Title</td><td>ICD-9 Dual Coding</td></tr><tr><td>Status</td><td>retired</td></tr><tr><td>Definition</td><td><div><p>ICD-9 Dual Coding Expression Syntax&quot;, description: ICD-9 allows dual coding. Refer to Section ?? of the ICD-9 Instruction Manual (ref?).</p>
<p>This OID identifies the code system that describes how to encode Dual Coding in a CD compatible expression (for Datatypes R2 CD only).</p>
<p>An ICD-9 dual code expression SHALL consist of two ICD-9 codes separated by space. This code system SHALL NOT be used for single ICD-9 codes; the normal ICD-9 code system oid which is 2.16.840.1.113883.6.3 should be used in this case. DisplayName SHALL not be used.</p>
<p>Dual code expressions SHALL only be used per the rules described in the ICD-9 instruction manual.</p>
<p><strong>An example CD:</strong>&lt;br&gt;&lt;/br&gt;&lt;example code=&quot;989.5 E905.9&quot; codeSystem=&quot;2.16.840.1.113883.6.261&quot;&gt;&lt;br&gt;&lt;/br&gt;&lt;originalText value=&quot;ANAPHYLAXIS DUE TO BITE OR STING&quot;/&gt;&lt;br&gt;&lt;/br&gt;&lt;/example&gt;&lt;br&gt;&lt;/br&gt;Where 989.5 is: &quot;Toxic effect of venom&quot; and E905.9 is: &quot;Bite or sting&quot;</p>
</div></td></tr><tr><td>Publisher</td><td>HL7</td></tr></table><h3>Identifiers</h3><table class="grid"><tr><td><b>Type</b></td><td><b>Value</b></td><td><b>Preferred</b></td></tr><tr><td>OID</td><td>2.16.840.1.113883.6.261</td><td>true</td></tr><tr><td>URI</td><td>http://terminology.hl7.org/CodeSystem/ICD-9DualCoding</td><td>true</td></tr></table></div>
  </text>
  <extension url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.url">
    <valueUri value="http://terminology.hl7.org/NamingSystem/ICD-9DualCoding"/>
  </extension>
  <extension url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.version">
    <valueString value="2.1.0"/>
  </extension>
  <extension url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.title">
    <valueString value="ICD-9 Dual Coding"/>
  </extension>
  <name value="ICD9DualCoding"/>
  <status value="retired"/>
  <kind value="codesystem"/>
  <date value="2021-11-09T10:00:00+10:00"/>
  <publisher value="HL7"/>
  <contact>
    <name value="HL7,HL7,HL7,HL7"/>
  </contact>
  <responsible value="HL7"/>
  <description value="ICD-9 Dual Coding Expression Syntax&quot;, description: ICD-9 allows dual coding. Refer to Section ?? of the ICD-9 Instruction Manual (ref?).&#xD;&#xA;&#xD;&#xA;This OID identifies the code system that describes how to encode Dual Coding in a CD compatible expression (for Datatypes R2 CD only).&#xD;&#xA;&#xD;&#xA;An ICD-9 dual code expression SHALL consist of two ICD-9 codes separated by space. This code system SHALL NOT be used for single ICD-9 codes; the normal ICD-9 code system oid which is 2.16.840.1.113883.6.3 should be used in this case. DisplayName SHALL not be used.&#xD;&#xA;&#xD;&#xA;Dual code expressions SHALL only be used per the rules described in the ICD-9 instruction manual.&#xD;&#xA;&#xD;&#xA;**An example CD:**&lt;br&gt;&lt;/br&gt;&lt;example code=&quot;989.5 E905.9&quot; codeSystem=&quot;2.16.840.1.113883.6.261&quot;&gt;&lt;br&gt;&lt;/br&gt;&lt;originalText value=&quot;ANAPHYLAXIS DUE TO BITE OR STING&quot;/&gt;&lt;br&gt;&lt;/br&gt;&lt;/example&gt;&lt;br&gt;&lt;/br&gt;Where 989.5 is: &quot;Toxic effect of venom&quot; and E905.9 is: &quot;Bite or sting&quot;"/>
  <uniqueId>
    <type value="oid"/>
    <value value="2.16.840.1.113883.6.261"/>
    <preferred value="true"/>
  </uniqueId>
  <uniqueId>
    <type value="uri"/>
    <value value="http://terminology.hl7.org/CodeSystem/ICD-9DualCoding"/>
    <preferred value="true"/>
  </uniqueId>
</NamingSystem>