F51.3
F51.3: Sleepwalking [somnambulism]
Billable / specific codeICD-10-CM
F51.3 is a billable, specific ICD-10-CM code for sleepwalking [somnambulism]. It is valid for submission on a claim.
Check F51.3 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Non-rapid eye movement sleep arousal disorders, sleepwalking type
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
F51.3 is named in 16 Medicare coverage policies: 14 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A56865Billing and Coding: Psychiatric Inpatient Hospitalizationnot covered
- A56903Billing and Coding: Polysomnography and Other Sleep Studies
- A56923Billing and Coding: Outpatient Sleep Studies
Alphabetic index entries that lead here
- Somnambulism
- Insomnia›learned
- Sleep›walking
- Walking›sleep
- Disorder›non-rapid eye movement sleep arousal›sleepwalking type
- Disorder›sleep›walking
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under F51
- F51.0Insomnia not due to a substance or known physiological condition
- F51.1Hypersomnia not due to a substance or known physiological condition
- F51.4Sleep terrors [night terrors]
- F51.5Nightmare disorder
- F51.8Other sleep disorders not due to a substance or known physiological condition
- F51.9Sleep disorder not due to a substance or known physiological condition, unspecified