ICD-10 Code F03.A2 – Unspecified dementia, mild, with psychotic disturbance (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F03.A2 – Unspecified dementia, mild, with psychotic disturbance
What it is
This code describes a mild dementia syndrome when the type is not specified and psychotic disturbance is present. Use it when cognitive decline is documented, but the record does not identify a more specific dementia diagnosis.
Clinical signs
Typical findings include memory loss and reduced ability to manage daily activities, with psychotic features such as delusions or hallucinations. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents mild unspecified dementia and also notes psychotic disturbance. It is appropriate when the chart supports dementia severity but does not name Alzheimer disease, vascular dementia, or another specific type. Check documentation if psychosis is mentioned without clear dementia severity.
Do not use for
Do not use this code for dementia without psychotic disturbance or for a more specific coded dementia type. Do not assign it if the record only says confusion, delirium, or psychosis without dementia.
Coding tip
Confirm both elements are documented: mild unspecified dementia and psychotic disturbance.