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 327.01 Insomnia due to medical condition classified elsewhere View the most recent version of ICD-9-CM 327.01 327.01 is a specific code that can be used to specify a diagnosis 327.01 contains 1 index entry View the ICD-9-CM Volume 1 327.* hierarchy Code first underlying condition 327.01 Excludes insomnia due to mental disorder (327.02)  Index entries containing 327.01: Insomnia, unspecified 780.52 due to medical condition classified elsewhere 327.01