Medical Terminology

central disorders of hypersomnolence (CDH)

The central disorders of hypersomnolence (CDH), as defined by the ICSD-3, include narcolepsy type 1, narcolepsy type 2, idiopathic hypersomnia, and Kleine-Levin syndrome. They also include insufficient sleep syndrome and hypersomnia caused by a medical condition, medication or substance, or psychiatric condition.