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F51.9

Sleep disorder not due to a substance or known physiological condition, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 6 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 2 never code together
F51code
Excludes2
  • organic sleep disorders (G47.-)G47.-
F01-F99chapter
Excludes2
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 2
F51.9code
Inclusion terms
  • Emotional sleep disorder NOS
F01-F99chapter
Includes
  • disorders of psychological development
Index entries leading here 5
  • Sleep
  • Disorder (of) — see also Disease
  • Disturbance (s) — see also Disease
  • Drunkenness (without dependence) F10.129
  • Problem (with) (related to)
    • sleep disorder, child F51.9
Alongside this code 6 same parent — F51
F51.0 Insomnia not due to a substance or known physiol condition category F51.1 Hypersomnia not due to a substance or known physiol cond category F51.3 Sleepwalking [somnambulism] F51.4 Sleep terrors [night terrors] F51.5 Nightmare disorder F51.8 Oth sleep disord not due to a sub or known physiol cond
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
F51
Block
F50-F59
Siblings
6

Present FY2024–FY2027.