G47.2

Disorders of the sleep-wake schedule

Coding guidance (WHO 2019)

Delayed sleep phase syndrome Irregular sleep-wake pattern

Sibling codes

G47Sleep disorders G47.0Disorders of initiating and maintaining sleep [insomnias]G47.1Disorders of excessive somnolence [hypersomnias]G47.3Sleep apnoea G47.4Narcolepsy and cataplexy G47.8Other sleep disorders G47.9Sleep disorder, unspecified