Specific code 2015 ICD-9-CM Diagnosis Code 331.83
Mild cognitive impairment, so stated
  • 2015
  • Billable Code
  • ICD-9-CM 331.83 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 331.83 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Mild cognitive impairment
331.83 Excludes
  • altered mental status (780.97)
  • cerebral degeneration (331.0-331.9)
  • change in mental status (780.97)
  • cognitive deficits following (late effects of) cerebral hemorrhage or infarction (438.0)
  • cognitive impairment due to intracranial or head injury (850-854, 959.01)
  • cognitive impairment due to late effect of intracranial injury (907.0)
  • cognitive impairment due to skull fracture (800-801, 803-804)
  • dementia (290.0-290.43, 294.20-294.21)
  • mild memory disturbance (310.89)
  • neurologic neglect syndrome (781.8)
  • personality change, nonpsychotic (310.1)
Convert to ICD-10-CM: 331.83 converts directly to:
  • 2015 ICD-10-CM G31.84 Mild cognitive impairment, so stated
ICD-9-CM Volume 2 Index entries containing back-references to 331.83:
  • Impaired, impairment (function)
    • cognitive, mild, so stated 331.83
    • mild cognitive, so stated 331.83
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 331.83 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.