ICD-10 Code F03.A4 – Unspecified dementia, mild, with anxiety (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F03.A4 – Unspecified dementia, mild, with anxiety
What it is
This code describes mild dementia when the type is not specified and anxiety is documented as a behavioral or psychological symptom. Use it when the record confirms dementia with mild severity and associated anxiety.
Clinical signs
Typical findings include mild cognitive decline affecting memory, thinking, or daily function. Anxiety may appear as worry, restlessness, fearfulness, or distress; clinical features vary, so refer to documentation.
When to use this code
Use F03.A4 when the provider documents unspecified dementia at the mild stage and clearly links anxiety to the condition. This is appropriate when the chart does not identify a more specific dementia type. Check documentation if severity or symptom linkage is unclear.
Do not use for
Do not use this code for dementia with a known subtype when a more specific ICD-10-CM code is documented. Do not assign it if anxiety is present but not documented as associated with the dementia.
Coding tip
Confirm both mild severity and the anxiety association in the provider note before coding.