ABSTRACT
The ICD-10 classication of nonorganic sleep disorders is
F51.0 Nonorganic insomnia F51.1 Nonorganic hypersomnia F51.2 Nonorganic disorder of the sleep-wake schedule F51.3 Sleepwalking F51.4 Sleep terrors F51.5 Nightmares
The DSM-5 classies sleep-wake disorders as follows: 780.52 Insomnia disorder 780.54 Hypersomnolence disorders 347.00 Narcolepsy/hypocretin deciency 327.23 Obstructive sleep apnoea hypopnoea syndrome Central sleep apnoea Sleep-related hypoventilation Circadian rhythm sleep-wake disorder 307.46 Sleepwalking disorder 307.46 Sleep terror disorder 307.47 Nightmare disorder 327.42 Rapid eye movement sleep behaviour disorder 333.94 Restless legs syndrome Substance-induced sleep disorder
Insomnia is the disturbance of normal sleep pattern and characterized by an insufcient quantity or quality of sleep.
