ICD10BillableValid for clinical use

ICD-10 Code F51.4: Sleep terrors [night terrors]

F51.4 is a billable ICD-10 diagnosis code used to classify Sleep terrors [night terrors] in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

When is it used?

  • May be used when a clinician documents sleep terrors [night terrors] in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F50-F59Behavioral syndromes associated with physiological disturbances and physical factors
category
F51Sleep disorders not due to a substance or known physiological condition
currentF51

Official coding notes

Inclusion terms
  • Non-rapid eye movement sleep arousal disorders, sleep terror type

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
F51.4

Common synonyms

Sleep terrors [night terrors]

Frequently asked questions

Code details

CodeF51.4
SystemICD10
Display nameSleep terrors [night terrors]
ChapterMental, Behavioral and Neurodevelopmental disorders (F01-F99)
BlockBehavioral syndromes associated with physiological disturbances and physical factors

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Disorder(of)Disorder(of)NightSleepTerror(s) night (child)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code F51.4 for Sleep terrors [night terrors] | HealthAssure