F51.13
Billable codeHypersomnia due to other mental disorder
The ICD-10 code for hypersomnia due to other mental disorder is F51.13.
Clinical notes
Code also
Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.
- associated mental disorder
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- F51.11Primary hypersomnia
- F51.12Insufficient sleep syndrome
- F51.19Other hypersomnia not due to a substance or known physiological condition
- F51.13Hypersomnia due to other mental disorder
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 32715Approximate match
Associated MS-DRGs
F51.13 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.