The International Classification of Sleep Disorders

Circadian Rhythm Sleep Disorders

Reference: ICSD - International classification of sleep disorders: Diagnostic and coding manual. Diagnostic Classification Steering Committee, Thorpy MJ, Chairman. Rochester, Minnesota: American Sleep Disorders Association, 1990.

1. Dyssomnias

C. Circadian Rhythm Sleep Disorders

	ICSD:	Ref. data:
1. Time Zone Change (Jet Lag) Syndrome	307.45-0
2. Shift Work Sleep Disorder	307.45-1
3. Irregular Sleep-Wake Pattern	307.45-3
4. Delayed Sleep Phase Syndrome	780.55-0
5. Advanced Sleep Phase Syndrome	780.55-1
6. Non-24-Hour Sleep-Wake Disorder	780.55-2
7. Circadian Rhythm Sleep Disorder NOS	780.55-9