F51 - Sleep disorders not due to a substance or known physiological condition
Excludes 2:
-organic sleep disorders (G47.-)
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