F02.A18
Dementia in other diseases classified elsewhere, mild, with other behavioral disturbance
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
F02code
Excludes1
- mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)F06.7-
F02.Acode
Excludes1
- mild neurocognitive disorder due to known physiological condition with or without behavioral disturbance (F06.7-)F06.7-
F01-F99chapter
Excludes2
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 32
F02.A18code
Inclusion terms
- Dementia in other diseases classified elsewhere, mild, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
- Major neurocognitive disorder in other diseases classified elsewhere, mild, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
Use additional code
- code, if applicable, to identify wandering in dementia in conditions classified elsewhere (Z91.83)Z91.83
F02code
Includes
- Major neurocognitive disorder in other diseases classified elsewhere
Code first
- the underlying physiological condition, such as:
- Alzheimer's (G30.-)G30.-
- cerebral lipidosis (E75.4)E75.4
- Creutzfeldt-Jakob disease (A81.0-)A81.0-
- epilepsy and recurrent seizures (G40.-)G40.-
- frontotemporal dementia (G31.09)G31.09
- hepatolenticular degeneration (E83.01)E83.01
- human immunodeficiency virus [HIV] disease (B20)B20
- Huntington's disease (G10)G10
- hypercalcemia (E83.52)E83.52
- hypothyroidism, acquired (E00-E03.-)E00-E03
- intoxications (T36-T65)T36-T65
- Jakob-Creutzfeldt disease (A81.0-)A81.0-
- multiple sclerosis (G35-)G35-
- neurocognitive disorder with Lewy bodies (G31.83)G31.83
- neurosyphilis (A52.17)A52.17
- niacin deficiency [pellagra] (E52)E52
- other frontotemporal neurocognitive disorder (G31.90)G31.90
- Parkinson's disease (G20.-)G20.-
- Pick's disease (G31.01)G31.01
- polyarteritis nodosa (M30.0)M30.0
- prion disease (A81.9)A81.9
- systemic lupus erythematosus (M32.-)M32.-
- traumatic brain injury (S06.-)S06.-
- trypanosomiasis (B56.-, B57.-)B56.-B57.-
- vitamin B deficiency (E53.8)E53.8
F01-F09block
Notes
- This block comprises a range of mental disorders grouped together on the basis of their having in common a demonstrable etiology in cerebral disease, brain injury, or other insult leading to cerebral dysfunction. The dysfunction may be primary, as in diseases, injuries, and insults that affect the brain directly and selectively; or secondary, as in systemic diseases and disorders that attack the brain only as one of the multiple organs or systems of the body that are involved.
F01-F99chapter
Includes
- disorders of psychological development
Index entries leading here 1
- Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety) F03.90
Alongside this code 1 same parent — F02.A1
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.