F02.818 — Dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance
F02.818 is a billable, specific ICD-10-CM code for dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance. It is valid for submission on a claim.
Use additional code
Add a secondary code to capture the detail described below.
- code, if applicable, to identify wandering in dementia in conditions classified elsewhere (Z91.83)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Dementia in other diseases classified elsewhere with sleep disturbance, social disinhibition, or sexual disinhibition
- Major neurocognitive disorder in other diseases classified elsewhere with sleep disturbance, social disinhibition, or sexual disinhibition
Risk adjustment
F02.818 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 127 Dementia, Mild or Unspecified0.341 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
F02.818 is named in 17 Medicare coverage policies — 16 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
- A53052Billing and Coding: Home Health Speech-Language Pathology
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
How F02.818 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F02.818.
- Dementia›in›diseases specified elsewhere›with›behavioral disturbances(sexual disinhibition) (sleep disturbance) (social disinhibition)
- Dementia›in›diseases specified elsewhere›with›behavioral disturbances›specified NEC
Related codes at this level
Codes that share F02.81. If F02.818 is not quite right, the correct code is usually one of these.
Questions about F02.818
- Is F02.818 a billable ICD-10-CM code?
- Yes. F02.818 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F02.818 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mental disorders due to known physiological conditions (F01-F09).