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2007 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 > Cataplexy And Narcolepsy 347.* > 2007 ICD-9-CM Diagnosis 347.01 Narcolepsy, with cataplexy  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 347.01 can be accessed here. 347.01 is a specific code that can be used to specify a diagnosis 347.01 contains 1 index entry View the ICD-9-CM Volume 1 347.* hierarchy Index entries containing 347.01: Narcolepsy 347.00 with cataplexy 347.01