Generated Narrative: NamingSystem icd9 Summary Defining URL http://terminology.hl7.org/NamingSystem/icd9 Version 2.1.0 Name Icd9 Title ICD9 Status retired Definition ICD9 Identifiers Type Value Preferred OID 2.16.840.1.113883.6.42 true URI http://terminology.hl7.org/CodeSystem/icd9 true