Non-specific code 2015 ICD-9-CM Diagnosis Code 347
Cataplexy and narcolepsy
  • 2015
  • Non-Billable Code

  • There are 2 ICD-9-CM codes below 347 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • A condition characterized by recurrent episodes of daytime somnolence and lapses in consciousness (microsomnias) that may be associated with automatic behaviors and amnesia. Cataplexy; sleep paralysis, and hypnagogic hallucinations frequently accompany narcolepsy. The pathophysiology of this disorder includes sleep-onset rapid eye movement (rem) sleep, which normally follows stage iii or iv sleep. (from neurology 1998 feb;50(2 suppl 1):s2-s7)
  • A sleep disorder characterized by a tendency for excessive sleepiness during the day which occurs even after adequate sleep in the nighttime. The persons who suffer from this condition experience fatigue and may fall asleep at inappropriate times during the day
  • Recurrent, uncontrollable brief episodes of sleep and lapses in consciousness, often associated with hypnagogic hallucinations, cataplexy, automatic behaviors and sleep paralysis
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 347 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.