G31.84
BillableMild cognitive impairment of uncertain or unknown etiology
G31.84 is the ICD-10-CM code for Mild cognitive impairment of uncertain or unknown etiology. It is a billable, specific code valid for reimbursement.
G00-G99 Diseases of the nervous system
What this means — in plain language
MedlinePlus · NIHSome forgetfulness can be a normal part of aging. However, some people have more memory problems than other people their age. This condition is called mild cognitive impairment, or MCI. People with MCI can take care of themselves and do their normal activities. MCI memory problems may include: Losing things often Forgetting to go to events and appointments Having more trouble coming up with words than other people…
Read more about Mild Cognitive Impairment at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Mild cognitive disorder NOS
- •Mild neurocognitive disorder of uncertain or unknown etiology
Excludes1 — not coded here
- •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)
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Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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