G31.84 - Mild cognitive impairment of uncertain or unknown etiology

  • Applicable to Mild cognitive impairment of uncertain or unknown etiology
  • The 2025 edition of ICD10-CM G31.84 became effective on October 1, 2024.
  • This is the American ICD10-CM version of G31.84 - other international versions of ICD10 G31.84 may differ.
  • G31.84 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Code Additional Code

  • code to identify presence of:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • hypertension (I10-I1A)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

 Inclusion Term

  • Mild cognitive disorder NOS
  • Mild neurocognitive disorder of uncertain or unknown etiology

Type 1 Excludes

  • age related cognitive decline (R41.81)
  • altered mental status (R41.82)
  • cerebral degeneration (G31.9)
  • cerebrovascular diseases (I60-I69)
  • change in mental status (R41.82)
  • cognitive deficits following (sequelae of) cerebral hemorrhage or infarction (I69.01-, I69.11-, I69.21-, I69.31-, I69.81-, I69.91-)
  • cognitive impairment due to intracranial or head injury (S06.-)
  • dementia (F01.-, F02.-, F03.-)
  • mild neurocognitive disorder due to a known physiological condition (F06.7-)
  • neurologic neglect syndrome (R41.4)
  • personality change, nonpsychotic (F68.8)

The following codes above G31.84 contain annotation back-references that may be applicable to G31.84:

Chapter: G00-G99 Diseases of the nervous system

Section: G30-G32 Other degenerative diseases of the nervous system

Category: G31 Other degenerative diseases of nervous system, not elsewhere classified

     
Billable/Specific Code

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