This page is part of the HL7 Terminology (v4.0.0: 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 
: ICD-9 Dual Coding - XML Representation
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<NamingSystem xmlns="http://hl7.org/fhir">
<id value="ICD-9DualCoding"/>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml"><h3>Summary</h3><table class="grid"><tr><td>Defining URL</td><td>http://terminology.hl7.org/NamingSystem/ICD-9DualCoding</td></tr><tr><td>Name</td><td>ICD9DualCoding</td></tr><tr><td>Status</td><td>retired</td></tr><tr><td>Definition</td><td><div><p>ICD-9 Dual Coding Expression Syntax", 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><br></br><example code="989.5 E905.9" codeSystem="2.16.840.1.113883.6.261"><br></br><originalText value="ANAPHYLAXIS DUE TO BITE OR STING"/><br></br></example><br></br>Where 989.5 is: "Toxic effect of venom" and E905.9 is: "Bite or sting"</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/tools/StructureDefinition/extension-title">
<valueString value="ICD-9 Dual Coding"/>
</extension>
<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://terminology.hl7.org/StructureDefinition/ext-namingsystem-version">
<valueString value="2.1.0"/>
</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", description: ICD-9 allows dual coding. Refer to Section ?? of the ICD-9 Instruction Manual (ref?).
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-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.
Dual code expressions SHALL only be used per the rules described in the ICD-9 instruction manual.
**An example CD:**<br></br><example code="989.5 E905.9" codeSystem="2.16.840.1.113883.6.261"><br></br><originalText value="ANAPHYLAXIS DUE TO BITE OR STING"/><br></br></example><br></br>Where 989.5 is: "Toxic effect of venom" and E905.9 is: "Bite or sting""/>
<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>
