G47.22
BillableCircadian rhythm sleep disorder, advanced sleep phase type
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A sleep disorder where a person's internal body clock is set several hours earlier than normal, causing them to fall asleep and wake up much earlier than desired. This results in early morning awakening and daytime sleepiness despite getting adequate total sleep.
Coding Tips
- •This code is specific to advanced sleep phase type; do not use it for other circadian rhythm disorders like delayed sleep phase or irregular sleep-wake rhythm
- •Document the patient's typical sleep and wake times, and confirm the pattern is consistent and causing functional impairment before coding this diagnosis
Code Hierarchy
└G47Sleep disorders└G47.2Circadian rhythm sleep disorders└G47.22Circadian rhythm sleep disorder, advanced sleep phase type
└G47.22Circadian rhythm sleep disorder, advanced sleep phase type