delayed sleep phase disorder

chronic mismatch between a person's normal daily rhythm, compared to other people and societal norms
MedicalCondition class_of_disease Q1470530
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delayed sleep phase disorder

Summary

delayed sleep phase disorder is a class of disease[1]. It draws 718 Wikipedia views per month (class_of_disease category, ranking #240 of 1,968).[2]

Key Facts

  • delayed sleep phase disorder's instance of is recorded as class of disease[3].
  • delayed sleep phase disorder's subclass of is recorded as sleep disorder[4].
  • delayed sleep phase disorder's subclass of is recorded as circadian rhythm sleep disorder[5].
  • delayed sleep phase disorder's subclass of is recorded as disease[6].
  • delayed sleep phase disorder's opposite of is recorded as advanced sleep phase syndrome[7].
  • delayed sleep phase disorder's ICD-9 ID is recorded as 327.31[8].
  • delayed sleep phase disorder's ICD-10 ID is recorded as G47.2[9].
  • delayed sleep phase disorder's Freebase ID is recorded as /m/01hlyl[10].
  • delayed sleep phase disorder's KEGG ID is recorded as H00689[11].
  • delayed sleep phase disorder's eMedicine ID is recorded as 1188944[12].
  • delayed sleep phase disorder's Disease Ontology ID is recorded as DOID:0111141[13].
  • delayed sleep phase disorder's symptoms and signs is recorded as insomnia[14].
  • delayed sleep phase disorder's has cause is recorded as genetics[15].
  • delayed sleep phase disorder's has cause is recorded as traumatic brain injury[16].
  • delayed sleep phase disorder's medical examination is recorded as physical examination[17].
  • delayed sleep phase disorder's possible treatment is recorded as light therapy[18].
  • delayed sleep phase disorder's possible treatment is recorded as behavior modification[19].
  • delayed sleep phase disorder's health specialty is recorded as neurology[20].
  • delayed sleep phase disorder's exact match is recorded as http://purl.obolibrary.org/obo/DOID_0111141[21].
  • delayed sleep phase disorder's exact match is recorded as http://identifiers.org/doid/DOID:0111141[22].
  • delayed sleep phase disorder's Quora topic ID is recorded as Delayed-Sleep-Phase-Syndrome[23].
  • delayed sleep phase disorder's subreddit is recorded as DSPD[24].
  • delayed sleep phase disorder's ICD-10-CM is recorded as G47.21[25].
  • delayed sleep phase disorder's PatientsLikeMe condition ID is recorded as delayed-sleep-phase-syndrome[26].
  • delayed sleep phase disorder's on focus list of Wikimedia project is recorded as WikiProject Medicine[27].

Why It Matters

delayed sleep phase disorder draws 718 Wikipedia views per month (class_of_disease category, ranking #240 of 1,968).[2] It has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[28] It is known by 26 alternative names across languages and contexts.[29]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . Disease Ontology. Retrieved . wikidata.org.
  3. [5] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . Freebase Data Dumps. wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . sciencedirect.com. sciencedirect.com. Provenance: wikidata.org.
  14. [16] . pmc.ncbi.nlm.nih.gov. pmc.ncbi.nlm.nih.gov. Provenance: wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . Disease Ontology. Retrieved . wikidata.org.
  20. [22] . Identifiers.org. registry.identifiers.org. Provenance: wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . old.reddit.com. Retrieved . old.reddit.com. Provenance: wikidata.org.
  23. [25] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . 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). delayed sleep phase disorder. Retrieved May 3, 2026, from https://4ort.xyz/entity/delayed-sleep-phase-disorder
MLA “delayed sleep phase disorder.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/delayed-sleep-phase-disorder.
BibTeX @misc{4ortxyz_delayed-sleep-phase-disorder_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{delayed sleep phase disorder}}, year = {2026}, url = {https://4ort.xyz/entity/delayed-sleep-phase-disorder}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): delayed sleep phase disorder — https://4ort.xyz/entity/delayed-sleep-phase-disorder (retrieved 2026-05-03)

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