2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Other Disorders Of The Central Nervous System 340-349 > 2006 ICD-9-CM Diagnosis 347 Cataplexy and narcolepsy View the most recent version of ICD-9-CM 347 347 is a non-specific code that cannot be used to specify a diagnosis