World Health Organization · 2026-01 · English

Hypersomnolence disorders

Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.

WHO URI ↗

More specific codes

7A20Narcolepsy 7A21Idiopathic hypersomnia 7A22Kleine-Levin syndrome 7A23Hypersomnia due to a medical condition 7A24Hypersomnia due to a medication or substance 7A25Hypersomnia associated with a mental disorder 7A26Insufficient sleep syndrome 7A2YOther specified hypersomnolence disorders 7A2ZHypersomnolence disorders, unspecified

US · ICD-10-CM · CDC/NCHS →