Diseases

Undiagnosed Diseases

Rare and common diseases lacking a diagnosis.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Rare and common diseases lacking a diagnosis.

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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MeSH Record

See Also

MeSH Record

Synonyms

2 entry terms
  • Disease, Undiagnosed
  • Undiagnosed Disease

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

History Note

2020

MeSH Record

Previous Indexing

  • Rare Diseases (2008-2019)

MeSH Hierarchy

Tree Number

  1. C23.550.291.968

AMA Style

References

  1. National Library of Medicine. Undiagnosed Diseases. Medical Subject Headings (MeSH). 2026. Unique ID D000080842. http://id.nlm.nih.gov/mesh/2026/D000080842
  2. Undiagnosed Diseases. In: Wikidata. https://www.wikidata.org/wiki/Q114457391