Specific code 2015 ICD-9-CM Diagnosis Code 327.42
REM sleep behavior disorder
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 327.42 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 327.42 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 327.42 converts directly to:
  • 2015/16 ICD-10-CM G47.52 REM sleep behavior disorder
Approximate Synonyms
  • Rapid eye movement sleep behavior disorder (disorder)
  • Rem sleep behavior disorder
Clinical Information
  • A disorder characterized by episodes of vigorous and often violent motor activity during rem sleep (sleep, rem). The affected individual may inflict self injury or harm others, and is difficult to awaken from this condition. Episodes are usually followed by a vivid recollection of a dream that is consistent with the aggressive behavior. This condition primarily affects adult males. (from Adams et al., Principles of Neurology, 6th ed, p393)
ICD-9-CM Volume 2 Index entries containing back-references to 327.42:
  • Disorder - see also Disease
    • REM sleep behavior 327.42
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 327.42 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.