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 327.00 Organic insomnia, unspecified View the most recent version of ICD-9-CM 327.00 327.00 is a specific code that can be used to specify a diagnosis 327.00 contains 1 index entry View the ICD-9-CM Volume 1 327.* hierarchy  Index entries containing 327.00: Insomnia, unspecified 780.52 organic 327.00 other 327.09