ICD-10 Code F02.84 – Dementia in other diseases classified elsewhere, unspecified severity, with anxiety (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F02.84 – Dementia in other diseases classified elsewhere, unspecified severity, with anxiety
What it is
This code identifies dementia caused by another underlying disease, with anxiety documented as part of the clinical picture. It is used when the dementia severity is not specified and the anxiety is associated with the dementia.
Clinical signs
Typical findings include memory loss, impaired reasoning, and reduced ability to manage daily activities, along with anxious behavior or persistent worry. Clinical features vary; refer to documentation.
When to use this code
Use F02.84 when the record states dementia due to another condition and specifically documents anxiety. You should code the underlying disease separately when instructed by the record or guideline. Confirm that severity is unspecified and that the anxiety is linked to the dementia.
Do not use for
Do not use this code if dementia is not due to another disease, or if anxiety is documented without a dementia diagnosis. Check documentation when the record does not clearly connect the anxiety to the dementia.
Coding tip
Verify the underlying cause and the anxiety linkage before assigning F02.84.