ICD-10 Code F01.A – Vascular dementia, mild (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F01.A – Vascular dementia, mild
What it is
F01.A identifies mild vascular dementia, a decline in thinking skills caused by cerebrovascular disease. You use it when documentation supports dementia with vascular origin and only mild impairment.
Clinical signs
Clinical features vary; refer to documentation. Common findings include slowed thinking, impaired judgment, and problems with memory or executive function, with vascular disease or stroke history supporting the diagnosis.
When to use this code
Use this code when the provider documents mild vascular dementia, or equivalent wording such as early or mild vascular neurocognitive disorder with dementia. Confirm that the record links the cognitive decline to vascular causes. If severity is not stated, check documentation before assigning F01.A.
Do not use for
Do not use this code for dementia from Alzheimer disease, Lewy body disease, or other nonvascular causes. Do not assign it when the chart only describes cognitive impairment without a documented dementia diagnosis.
Coding tip
Match the dementia type and severity exactly to the provider’s wording, and query if vascular cause or mild stage is unclear.