7A62

ICD-11 MMS 2026-01

Irregular sleep-wake rhythm disorder

Description

Irregular sleep-wake rhythm disorder is characterised by absence of a clearly-defined cycle of sleep and wake. Sleep becomes distributed in multiple episodes of variable duration throughout the 24-hour period. Patients typically complain of insomnia and/or excessive daytime sleepiness as a result of the condition. The symptoms should have persisted for at least several months and result in significant distress or mental, physical, social, occupational or academic impairment.

Index terms

  • Irregular sleep-wake rhythm disorder
  • circadian rhythm sleep-wake disorder, irregular sleep-wake rhythm type
  • irregular sleep-wake pattern

Inclusions

  • irregular sleep-wake pattern

Sibling codes

  • 7A60 – Delayed sleep-wake phase disorder
  • 7A61 – Advanced sleep-wake phase disorder
  • 7A63 – Non-24 hour sleep-wake rhythm disorder
  • 7A64 – Circadian rhythm sleep-wake disorder, shift work type
  • 7A65 – Circadian rhythm sleep-wake disorder, jet lag type
  • 7A6Z – Circadian rhythm sleep-wake disorders, unspecified

Foundation entity

Irregular sleep-wake rhythm disorder – http://id.who.int/icd/entity/934354997

Part of: 07: Sleep-wake disorders