F51.13
F51.13: Hypersomnia due to other mental disorder
Billable / specific codeICD-10-CM
F51.13 is a billable, specific ICD-10-CM code for hypersomnia due to other mental disorder. It is valid for submission on a claim.
Check F51.13 with the rest of the claim: free scrubberCode also
Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.
- associated mental disorder
Excludes2 inherited from the categories above F51.13
Not part of this code, but both may be coded when both are present.
Written on F51.1: Hypersomnia not due to a substance or known physiological condition
- 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 NOS (G47.10)
- hypersomnia due to known physiological condition (G47.10)
- idiopathic hypersomnia (G47.11, G47.12)
- narcolepsy (G47.4-)
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
F51.13 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56612Billing and Coding: CT of the Head
- A56923Billing and Coding: Outpatient Sleep Studies
- A56937Billing and Coding: Psychiatry and Psychology Services
- A57065Billing and Coding: Outpatient Psychiatry and Psychology Services
Alphabetic index entries that lead here
- Hypersomnia›due to›mental disorder
Code history
Unchanged in every release from FY2024 to FY2027.