Specific code 2015 ICD-9-CM Diagnosis Code 327.15
Hypersomnia due to mental disorder
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015
  • Manifestation Code

  • ICD-9-CM 327.15 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 327.15 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: 327.15 converts approximately to:
  • 2015/16 ICD-10-CM F51.13 Hypersomnia due to other mental disorder
Approximate Synonyms
  • Hypersomnia disorder related to another mental disorder
  • Hypersomnia due to psychological disorder
327.15 Excludes
  • alcohol induced insomnia (291.82)
  • drug induced insomnia (292.85)
Code First
  • Code first mental disorder
ICD-9-CM Coding Information
  • 327.15 describes the manifestation of an underlying disease, not the disease itself.
ICD-9-CM Volume 2 Index entries containing back-references to 327.15:
  • Hypersomnia, unspecified 780.54
    • due to
      • medical condition classified elsewhere 327.14
      • mental disorder 327.15
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 327.15 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.