ICD-10-CM F51: Sleep disorders not due to a substance or known physiological condition

ICD-10-CM Diagnosis Code (2025)

Official Description for F51

Sleep disorders not due to a substance or known physiological condition

Coding Notes & Guidelines for F51

Excludes1: Not Coded Here

sleep deprivation (Z72.820)

Excludes2: Not Included Here

organic sleep disorders (G47.-)

Excludes2: Not Included Here
  • alcohol related insomnia (F10.182, F10.282, F10.982)
  • drug-related insomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
  • insomnia NOS (G47.0-)
  • insomnia due to known physiological condition (G47.0-)
  • organic insomnia (G47.0-)
  • sleep deprivation (Z72.820)
Excludes2: Not Included Here
  • alcohol related hypersomnia (F10.182, F10.282, F10.982)
  • drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
  • hypersomnia NOS (G47.10)
  • hypersomnia due to known physiological condition (G47.10)
  • idiopathic hypersomnia (G47.11, G47.12)
  • narcolepsy (G47.4-)
Inclusion Terms

Idiopathic insomnia

Inclusion Terms

Non-rapid eye movement sleep arousal disorders, sleepwalking type

Inclusion Terms

Non-rapid eye movement sleep arousal disorders, sleep terror type

Inclusion Terms

Dream anxiety disorder

Inclusion Terms

Emotional sleep disorder NOS

Code Also

associated mental disorder

Code Also

associated mental disorder

Child Codes (More Specific Codes for F51):

F51.0 - Insomnia not due to a substance or known physiological condition F51.01 - Primary insomnia F51.02 - Adjustment insomnia F51.03 - Paradoxical insomnia F51.04 - Psychophysiologic insomnia F51.05 - Insomnia due to other mental disorder F51.09 - Other insomnia not due to a substance or known physiological condition F51.1 - Hypersomnia not due to a substance or known physiological condition F51.11 - Primary hypersomnia F51.12 - Insufficient sleep syndrome F51.13 - Hypersomnia due to other mental disorder F51.19 - Other hypersomnia not due to a substance or known physiological condition F51.3 - Sleepwalking [somnambulism] F51.4 - Sleep terrors [night terrors] F51.5 - Nightmare disorder F51.8 - Other sleep disorders not due to a substance or known physiological condition F51.9 - Sleep disorder not due to a substance or known physiological condition, unspecified

About ICD-10-CM Code F51 (Sleep disorders not due to a substance or known physiological condition)

ICD-10-CM code F51 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM F51 became effective on October 1, 2024.

This page provides detailed information about F51 - Sleep disorders not due to a substance or known physiological condition. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Sleep disorders not due to a substance or known physiological condition.