This page is part of the FHIR Specification (v3.0.2: STU 3). The current version which supercedes this version is 4.0.1. For a full list of available versions, see the Directory of published versions
The URL "http://hl7.org/fhir/sid/icd-9" is the FHIR system identifier for codes defined in the ICD-9 US code system.
The source of this code system is the CDC, at http://www.cdc.gov/nchs/icd/icd9.htm .