ICD-10 Code G47.29 – Other circadian rhythm sleep disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G47.29 – Other circadian rhythm sleep disorder
What it is
G47.29 identifies a circadian rhythm sleep-wake disorder that does not fit a more specific ICD-10 category. Use it when the chart documents a circadian timing problem affecting sleep, but the exact subtype is not named.
Clinical signs
Typical findings include persistent difficulty falling asleep, waking too early, or sleeping at inappropriate times because the sleep-wake cycle is misaligned. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents an “other” or unspecified circadian rhythm sleep disorder and does not identify a specific pattern such as delayed or advanced sleep phase. It may also apply when the record describes circadian misalignment without enough detail for a more specific code. Check documentation carefully.
Do not use for
Do not use G47.29 if the record clearly supports a more specific circadian rhythm sleep disorder code. Do not use it for insomnia, hypersomnia, or sleep loss from shift work unless the provider documents a circadian rhythm disorder.
Coding tip
Query for the exact circadian rhythm subtype when the note only says “sleep disorder” or “sleep phase issue.”