2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Inflammatory Diseases Of The Central Nervous System 320-327 > Sleep Disorders 327.* > 2006 ICD-9-CM Diagnosis 327.15 Hypersomnia due to mental disorder View the most recent version of ICD-9-CM 327.15 327.15 is a specific code that can be used to specify a diagnosis 327.15 contains 1 index entry View the ICD-9-CM Volume 1 327.* hierarchy Code first mental disorder 327.15 Excludes alcohol induced insomnia (291.82) drug induced insomnia (292.85)  Index entries containing 327.15: Hypersomnia, unspecified 780.54 due to mental disorder 327.15