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F51Non-billableSave

F51 - Sleep disorders not due to a substance or known physiological condition

ICD-10-CM Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F50-F59 Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59) · Top-level category · FY2027

Coding Guidance

F51 is a non-billable heading. Report one of the 7 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 2 — Not Included HereFrom F51

Not part of this code; report both codes when the patient has both conditions.

  • organic sleep disorders (G47.-)
IncludesFrom Chapter F01-F99

Conditions this code covers.

  • disorders of psychological development
Excludes 2 — Not Included HereFrom Chapter F01-F99

Not part of this code; report both codes when the patient has both conditions.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

More Specific Codes (7)

F51.0Insomnia not due to a substance or known physiological condition→F51.1Hypersomnia not due to a substance or known physiological condition→F51.3Sleepwalking [somnambulism]→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→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with F51.