ICD-10 Code F02.A4 – Dementia in other diseases classified elsewhere, mild, with anxiety (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F02.A4 – Dementia in other diseases classified elsewhere, mild, with anxiety
What it is
This code identifies mild dementia that occurs because of another underlying disease, with anxiety documented as part of the clinical picture. It is used when the dementia is not the primary disorder but is linked to a separate condition.
Clinical signs
Typical findings include mild cognitive decline with preserved basic independence, along with anxiety symptoms noted in the record. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents dementia due to another disease and specifies the dementia as mild, with anxiety. The underlying cause should also be documented and coded when available. If severity or anxiety is not stated, check documentation before assigning this code.
Do not use for
Do not use this code for unspecified dementia, dementia without anxiety, or dementia not linked to another disease. Check documentation if the record does not clearly identify both the etiology and the anxiety component.
Coding tip
Verify that the note supports both mild severity and anxiety, and code the underlying disease separately when instructed by the record.