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2009 ICD-9-CM

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327.1 Organic disorder of excessive somnolence [Organic hypersomnia]
Excludes:
hypersomnia NOS (780.54)
hypersomnia not due to a substance or known physiological condition (307.43-307.44)
hypersomnia with sleep apnea NOS (780.53)
 eicd10
327.10 Organic hypersomnia, unspecified
 eicd10
327.11 Idiopathic hypersomnia with long sleep time
 eicd10
327.12 Idiopathic hypersomnia without long sleep time
 eicd10
327.13 Recurrent hypersomnia
Kleine-Levin syndrome
Menstrual related hypersomnia
 eicd10
327.14 Hypersomnia due to medical condition classified elsewhere
Code first underlying condition
Excludes:
hypersomnia due to mental disorder (327.15)
 eicd10
327.15 Hypersomnia due to mental disorder
Code first mental disorder
Excludes:
alcohol induced insomnia (291.82)
drug induced insomnia (292.85)
 eicd10
327.19 Other organic hypersomnia
 
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