International Classification of Diseases (also known as International Classification of Disease, Disease International Classification): A system of categories to which morbid entries are assigned according to established criteria. Included is the entire range of conditions in a manageable number of categories, grouped

NIH MeSH · D038801Information Science

International Classification of Diseases

Also known asInternational Classification of Disease · Disease International Classification · Disease International Classifications · ICD Codes · ICD Code · Code, ICD · Codes, ICD · International Classification of Disease Codes · ICD-10 · ICD-9 · ICD-9-CM · ICD-10-CM

Definition

A system of categories to which morbid entries are assigned according to established criteria. Included is the entire range of conditions in a manageable number of categories, grouped to facilitate mortality reporting. It is produced by the World Health Organization (From ICD-10, p1). The Clinical Modifications, produced by the UNITED STATES DEPT. OF HEALTH AND HUMAN SERVICES, are larger extensions used for morbidity and general epidemiological purposes, primarily in the U.S.

MeSH classification

  • L01.462.750.245.945.400

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Common questions about International Classification of Diseases

What does International Classification of Diseases mean in medicine?
A system of categories to which morbid entries are assigned according to established criteria. Included is the entire range of conditions in a manageable number of categories, grouped to facilitate mortality reporting. It is produced by the World Health Organization (From ICD-10, p1). The Clinical Modifications, produced by the UNITED STATES DEPT. OF HEALTH AND HUMAN SERVICES, are larger extensions used for morbidity and general epidemiological purposes, primarily in the U.S. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is International Classification of Diseases known by any other names?
Yes. International Classification of Diseases is also referred to as International Classification of Disease, Disease International Classification, Disease International Classifications, ICD Codes in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does International Classification of Diseases sit in the medical classification?
International Classification of Diseases falls under the broader medical category "Information Science" in the MeSH hierarchy (tree numbers: L01.462.750.245.945.400). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of International Classification of Diseases?
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Source: NIH MeSH 2026 (D038801) — National Library of Medicine, public domain. View official MeSH record ↗