Specific code 2015 ICD-9-CM Diagnosis Code 331.7
Cerebral degeneration in diseases classified elsewhere
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015
  • Manifestation Code

  • ICD-9-CM 331.7 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 331.7 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: 331.7 converts approximately to:
  • 2015/16 ICD-10-CM G94 Other disorders of brain in diseases classified elsewhere
Approximate Synonyms
  • Alcohol induced brain degeneration
  • Cerebral degeneration
  • Cerebral degeneration associated with another disorder
  • Cerebral degeneration due to alcoholism
  • Cerebral degeneration due to beriberi
  • Cerebral degeneration due to cerebrovascular disease
  • Cerebral degeneration due to congenital hydrocephalus
  • Cerebral degeneration due to Creutzfeldt-Jakob disease
  • Cerebral degeneration due to hypothyroidism
  • Cerebral degeneration due to neoplastic disease
  • Cerebral degeneration due to Parkinson's disease
  • Cerebral degeneration due to progressive multifocal leukoencephalopathy
  • Cerebral degeneration due to vitamin B12 deficiency
  • Cerebral degeneration in hypothyroidism
  • Degeneration of the brain due to alcoholism
  • Degenerative brain disorder due to alcohol
  • Frontal lobe degeneration with motor neurone disease
  • Postmeningitic hydrocephalus
331.7 Excludes
  • cerebral degeneration in:
    • Jakob-Creutzfeldt disease (046.11-046.19)
    • progressive multifocal leukoencephalopathy (046.3)
    • subacute spongiform encephalopathy (046.1)
Code First
ICD-9-CM Coding Information
  • 331.7 describes the manifestation of an underlying disease, not the disease itself.
ICD-9-CM Volume 2 Index entries containing back-references to 331.7:
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 331.7 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.