ICD-10 Code F01.511 – Vascular dementia, unspecified severity, with agitation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F01.511 – Vascular dementia, unspecified severity, with agitation
What it is
This code identifies vascular dementia when the severity is not specified and agitation is documented. It applies when cognitive decline is linked to cerebrovascular disease, with behavioral disturbance noted.
Clinical signs
Typical findings include impaired memory, slowed thinking, poor judgment, and reduced ability to manage daily tasks. Agitation may appear as restlessness, irritability, pacing, or emotional distress; clinical features vary, so refer to documentation.
When to use this code
Use F01.511 when the provider documents vascular dementia and specifically notes agitation, but does not assign a severity level. It fits charted cases with stroke-related cognitive decline and behavioral agitation. If the record is unclear, check documentation before coding.
Do not use for
Do not use this code if agitation is absent, or if the dementia type is not vascular. Also avoid it when the provider documents a different severity level or a different behavioral disturbance.
Coding tip
Verify both the vascular dementia diagnosis and the agitation term in the note before assigning F01.511.