ICD-10 Code F01.A3 – Vascular dementia, mild, with mood disturbance (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F01.A3 – Vascular dementia, mild, with mood disturbance
What it is
This code identifies mild vascular dementia, a decline in memory or thinking caused by cerebrovascular disease, with documented mood disturbance. Use it when the record links the dementia to vascular causes and notes associated mood symptoms.
Clinical signs
Typical findings include mild impairment in cognition, such as slowed thinking, reduced judgment, or short-term memory problems. Mood disturbance may appear as depression, anxiety, irritability, or emotional lability; clinical features vary, so refer to documentation.
When to use this code
Use this code when the provider documents mild vascular dementia and specifically states a mood disturbance is present. The chart should support both the vascular etiology and the severity level. If the mood change is not specified, or dementia type is unclear, check documentation.
Do not use for
Do not use this code for dementia without a vascular cause, or for mood disorders alone. It is also inappropriate when the record does not confirm mild severity or does not document mood disturbance.
Coding tip
Verify that the provider links the dementia to vascular disease and separately documents mood disturbance before assigning F01.A3.