G47.1 - Hypersomnia

The ICD 10 Code for Hypersomnia is listed as G47.1.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	G47.1
Description:	Hypersomnia Excludes2: alcohol-related hypersomnia (F10.182, F10.282, F10.982) drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982) hypersomnia due to a mental disorder (F51.13) hypersomnia not due to a substance or known physiological condition (F51.1-) primary hypersomnia (F51.11) sleep apnea (G47.3-)

Chapter	Diseases of the nervous system (G00-G99)
Block	Episodic and paroxysmal disorders (G40-G47)
Parent	G47 - Sleep disorders
ICD-10-CM Children (deeper level / typically more specific) of G47.1:
G47.10 - Hypersomnia, unspecified
G47.11 - Idiopathic hypersomnia with long sleep time
G47.12 - Idiopathic hypersomnia without long sleep time
G47.13 - Recurrent hypersomnia
G47.14 - Hypersomnia due to medical condition
G47.19 - Other hypersomnia
ICD-10-CM Siblings (same level / similar specificity) of G47.1:
G47.0 - Insomnia
G47.2 - Circadian rhythm sleep disorders
G47.3 - Sleep apnea
G47.4 - Narcolepsy and cataplexy
G47.5 - Parasomnia
G47.6 - Sleep related movement disorders
G47.8 - Other sleep disorders
G47.9 - Sleep disorder, unspecified