F01.C18 — Vascular dementia, severe, with other behavioral disturbance
F01.C18 is a billable, specific ICD-10-CM code for vascular dementia, severe, 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 vascular dementia (Z91.83)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Major neurocognitive disorder due to vascular disease, severe, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
- Vascular dementia, severe, with behavioral disturbances such as sleep disturbance, social disinhibition, or sexual disinhibition
Risk adjustment
F01.C18 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 125 Dementia, Severe0.341 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
F01.C18 is named in 16 Medicare coverage policies — 15 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
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56612Billing and Coding: CT of the Head
How F01.C18 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 F01.C18.
- Dementia›vascular›severe›with›behavioral disturbances(sleep disturbance) (sexual disinhibition) (social disinhibition)
- Dementia›vascular›severe›with›behavioral disturbances›specified NEC
Related codes at this level
Codes that share F01.C1. If F01.C18 is not quite right, the correct code is usually one of these.
Questions about F01.C18
- Is F01.C18 a billable ICD-10-CM code?
- Yes. F01.C18 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F01.C18 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Mental disorders due to known physiological conditions (F01-F09).