G47.1
Non-billableHypersomnia
G47.1 is the ICD-10-CM code for Hypersomnia. It is a non-billable category code — use a more specific child code such as G47.10 for billing.
G00-G99 Diseases of the nervous system
Excludes2 — not included here
- •alcohol-related hypersomnia (F10.182, F10.282, F10.982)
- •drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
- •hypersomnia due to a mental disorder (F51.13)
- •hypersomnia not due to a substance or known physiological condition (F51.1-)
- •primary hypersomnia (F51.11)
- •sleep apnea (G47.3-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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