{"resourceType":"CodeSystem","id":"ICD-9DualCoding","text":{"status":"generated","div":"<div xmlns=\"http://www.w3.org/1999/xhtml\"><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>"},"url":"http://terminology.hl7.org/CodeSystem/ICD-9DualCoding","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.6.261"}],"version":"2.0.1","name":"ICD9DualCoding","title":"ICD-9 Dual Coding","status":"retired","experimental":false,"date":"2021-11-09T10:00:00+10:00","publisher":"TBD - External Body","contact":[{"name":"HL7,HL7,HL7,HL7"}],"description":"ICD-9 Dual Coding Expression Syntax\", description: ICD-9 allows dual coding. Refer to Section ?? of the ICD-9 Instruction Manual (ref?).\r\n\r\nThis OID identifies the code system that describes how to encode Dual Coding in a CD compatible expression (for Datatypes R2 CD only).\r\n\r\nAn 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.\r\n\r\nDual code expressions SHALL only be used per the rules described in the ICD-9 instruction manual.\r\n\r\n**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\"","caseSensitive":true,"content":"not-present"}