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F51

Sleep disorders not due to a substance or known physiological condition

• organic sleep disorders (G47.-)

F51.0

Insomnia not due to a substance or known physiological condition

• 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)

F51.01

Primary insomnia

• Idiopathic insomnia

F51.02

Adjustment insomnia

F51.03

Paradoxical insomnia

F51.04

Psychophysiologic insomnia

F51.05

Insomnia due to other mental disorder

• associated 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

• 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-)

F51.11

Primary hypersomnia

F51.12

Insufficient sleep syndrome

• sleep deprivation (Z72.820)

F51.13

Hypersomnia due to other mental disorder

• associated mental disorder

F51.19

Other hypersomnia not due to a substance or known physiological condition

F51.3

Sleepwalking [somnambulism]

• Non-rapid eye movement sleep arousal disorders, sleepwalking type

F51.4

Sleep terrors [night terrors]

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

F51.5

Nightmare disorder

• Dream anxiety 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

• Emotional sleep disorder NOS