appears_in: []
comment: Note that ICD9 codes representing mid-hierarchy relations, such as those
  in the form of XXX-YYY are not possible to resolve, but are useful and appear in
  many places that make xrefs to ICD9
contributor:
  email: cthoyt@gmail.com
  github: cthoyt
  name: Charles Tapley Hoyt
  orcid: 0000-0003-4423-4370
depends_on: []
deprecated: false
description: The International Classification of Diseases (ICD) is designed to promote
  international comparability in the collection, processing, classification, and presentation
  of mortality statistics.
example: '277.9'
example_extras:
- '401'
- 401-405
- '995.81'
- E950
- V15.01
homepage: https://www.cdc.gov/nchs/icd/icd9.htm
keywords: []
license: CC BY-ND 3.0 IGO
mappings:
  bartoc: '447'
  biolink: ICD9
  hl7: 2.16.840.1.113883.6.42
  wikidata: P493
  wikidata.entity: Q50018
name: International Classification of Diseases, 9th Revision
pattern: ^((\d\d\d|V\d\d|E[8-9]\d\d)(\.\d{1,2})?)|(\d{1,3}-\d{1,3})$
preferred_prefix: icd9
prefix: icd9
providers: []
publications: []
references:
- https://www.who.int/about/policies/publishing/copyright
synonyms:
- ICD9
- ICD9_2005
- MTHICD9_2006
uri_format: http://www.icd9data.com/getICD9Code.ashx?icd9=$1
