This code system http://terminology.hl7.org/CodeSystem/icd9cm defines many codes, but they are not represented here

 <status value="active"/> <experimental value="false"/> <date value="2019-03-20T00:00:00-04:00"/> <publisher value="TBD - External Body"/> <contact> <name value="National Center for Health Statistics"/> </contact> <description value="International Classification of Diseases revision 9, with Clinical Modifications (ICD 9 CM)"/> <content value="not-present"/> </CodeSystem>