G31.84 is a billable/specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Mild cognitive impairment of uncertain or unknown etiology.
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Mild cognitive disorder NOS
Mild neurocognitive disorder of uncertain or unknown etiology
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.-)
Mild neurocognitive disorder due to a known physiological condition (F06.7-)
Neurologic neglect syndrome (R41.4)
Personality change, nonpsychotic (F68.8)
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