ICD-10 F51.9
Billable / SpecificSleep disorder not due to a substance or known physiological condition, unspecified
About ICD-10-CM F51.9
ICD-10-CM code F51.9 represents Sleep disorder not due to a substance or known physiological condition, unspecified. This is a billable/specific code in the Mental, Behavioral, and Neurodevelopmental chapter (block F51). The 2026 edition of ICD-10-CM F51.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under F51.9. Per CMS ICD-10-CM Tabular 2026.
- Emotional sleep disorder NOS
Medicare LCD Coverage for F51.9
Local Coverage Determinations (LCDs) from CMS MACs that list F51.9 as a covered diagnosis.
Showing top 10 of 37 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing F51.9.
1 Cigna
3 Medicare
CPT Codes Commonly Billed with F51.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert F51.9 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| F51.9 | 30740 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To F51.9
Other codes in section F50-F59 (Behavioral syndromes associated with physiological disturbances and physical factors).
ICD-10 F51.9, Billing FAQ
Is ICD-10 code F51.9 billable? +
Yes, F51.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to F51.9? +
ICD-10 F51.9 includes: Emotional sleep disorder NOS.
What ICD-9 codes does F51.9 map to? +
Per CMS GEMs, F51.9 maps to ICD-9 codes: 30740. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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