7A62 Irregular sleep-wake rhythm disorder

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

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.

synonyms

• Irregular sleep-wake rhythm disorder
• Circadian rhythm sleep-wake disorder, irregular sleep-wake rhythm type

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