alopecia areata

condition in which hair is lost from some or all areas of the body
MedicalCondition class_of_disease Q5075435
alopecia areata
Abbassyma at English Wikipedia · Public Domain · Wikimedia
Press Enter · cited answer in seconds

Summary

alopecia areata is a class of disease[1]. It ranks in the top 6% of class of disease entities by monthly Wikipedia readership (8,469 views/month).[2]

Key Facts

  • Instance of: symptom or sign[3]
  • Subclass of: alopecia[4], autoimmune disease[5], autoimmune skin disease[6]
  • Commons category: Alopecia areata[7]
  • ICPC 2 ID: S23[8]
  • Described by source: Meyers Konversations-Lexikon, 4th edition (1885–1890)[9]
  • ICD-9-CM: 704.01[10]
  • Health specialty: dermatology[11]
  • Genetic association: STX17[12], IL2RA[13], IKZF4[14], HR[15]
  • Exact match: http://purl.obolibrary.org/obo/DOID_986[16], http://identifiers.org/doid/DOID:986[17], http://purl.obolibrary.org/obo/HP_0002229[18]
  • On focus list of Wikimedia project: WikiProject Medicine[19]
  • WordLift URL: http://data.medicalrecords.com/medicalrecords/healthwise/alopecia_areata_2[20]

Why It Matters

alopecia areata has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[21] It is known by 34 alternative names across languages and contexts.[22]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Disease Ontology. Retrieved . wikidata.org.
  4. [6] ↑ . Disease Ontology. Retrieved . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . Disease Ontology. Retrieved . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . Phenocarta. Retrieved . gemma.msl.ubc.ca. Provenance: wikidata.org.
  11. [13] ↑ . Phenocarta. Retrieved . gemma.msl.ubc.ca. Provenance: wikidata.org.
  12. [14] ↑ . Phenocarta. Retrieved . gemma.msl.ubc.ca. Provenance: wikidata.org.
  13. [15] ↑ . Open Targets Platform. Retrieved . platform.opentargets.org. Provenance: wikidata.org.
  14. [16] ↑ . Disease Ontology. Retrieved . wikidata.org.
  15. [17] ↑ . Identifiers.org. registry.identifiers.org. Provenance: wikidata.org.
  16. [18] ↑ . Human Phenotype Ontology release 2018-03-08. Retrieved . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . medicalrecords.com. medicalrecords.com. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [21] ↑ . Wikidata sitelinks. wikidata.org.
  3. [22] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). alopecia areata. Retrieved October 17, 2026, from https://4ort.xyz/entity/alopecia-areata
MLA “alopecia areata.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/alopecia-areata.
BibTeX @misc{4ortxyz_alopecia-areata_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{alopecia areata}}, year = {2026}, url = {https://4ort.xyz/entity/alopecia-areata}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): alopecia areata — https://4ort.xyz/entity/alopecia-areata (retrieved 2026-10-17)

Canonical URL: https://4ort.xyz/entity/alopecia-areata · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 18w ago · Mowsenter · 2026-06-08 view diff on Wikidata ↗
    Subclass of → —
    On focus list of wikimedia project → WikiProject Medicine
    Subclass of → alopecia, autoimmune disease, autoimmune skin disease
    Described by source → Meyers Konversations-Lexikon, 4th edition (1885–1890)
    + 6 other properties edited (see Wikidata diff for full list)
    "/* wbsetreference-add:2| */ Mesh tree code: C17.800.329.937.122.147"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.