Idiopathic hypersomnia without long sleep time
ICD-10 Code
G47.12
Idiopathic hypersomnia without long sleep time
Definition
Idiopathic hypersomnia without long sleep time is a sleep disorder characterized almost entirely by constant excessive daytime drowsiness lasting more than 3 months, with involuntary more or less restorative daytime naps. Night rest is of normal length or slightly prolonged but is less than 10 hours in duration, with often normal awakening.