G47.1
G47.1 — Hypersomnia
Non-billable headerICD-10-CM
G47.1 is a non-billable header ICD-10-CM code for hypersomnia. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- 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-)
Risk adjustment
G47.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead G47.1
6 child codes. Green means billable.
Related codes at this level
Codes that share G47. If G47.1 is not quite right, the correct code is usually one of these.
Questions about G47.1
- Is G47.1 a billable ICD-10-CM code?
- No. G47.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G47.1 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Episodic and paroxysmal disorders (G40-G47).