<?xml version="1.0" encoding="UTF-8"?><CodeSystem 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: CodeSystem ICD-9DualCoding</b></p><a name="ICD-9DualCoding"> </a><a name="hcICD-9DualCoding"> </a><a name="ICD-9DualCoding-en-US"> </a><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/ICD-9DualCoding</code> defines codes, but no codes are represented here</p></div></text><url value="http://terminology.hl7.org/CodeSystem/ICD-9DualCoding"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.6.261"/></identifier><version value="2.0.1"/><name value="ICD9DualCoding"/><title value="ICD-9 Dual Coding"/><status value="retired"/><experimental value="false"/><date value="2021-11-09T10:00:00+10:00"/><publisher value="TBD - External Body"/><contact><name value="HL7,HL7,HL7,HL7"/></contact><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;"/><caseSensitive value="true"/><content value="not-present"/></CodeSystem>