G31.84
Mild cognitive impairment of uncertain or unknown etiology
Billable
Coding Guidelines
Inclusion Terms
- Mild cognitive disorder NOS
- Mild neurocognitive disorder of uncertain or unknown etiology
Excludes1 (Mutually Exclusive)
These codes should never be used together with G31.84
- R41.81 - age related cognitive decline (R41.81)
- R41.82 - altered mental status (R41.82)
- G31.9 - cerebral degeneration (G31.9)
- I60.-I69 - cerebrovascular diseases (I60-I69)
- R41.82 - 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-)
- R41.4 - neurologic neglect syndrome (R41.4)
- F68.8 - personality change, nonpsychotic (F68.8)
Use 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)
Related Codes
G31.80Billable
Leukodystrophy, unspecified
G31.81Billable
Alpers disease
G31.82Billable
Leigh's disease
G31.83Billable
Neurocognitive disorder with Lewy bodies
G31.85Billable
Corticobasal degeneration
G31.86Billable
Alexander disease
G31.87Billable
Primary progressive apraxia of speech
G31.89Billable
Other specified degenerative diseases of nervous system
