ICD-10 Code F02.83 – Dementia in Other Diseases Classified Elsewhere, Unspecified Severity, with Mood Disturbance (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F02.83 – Dementia in other diseases classified elsewhere, unspecified severity, with mood disturbance
What it is
This code identifies dementia caused by another underlying disease, with the severity not specified, and with mood disturbance documented. Use it when the record links the dementia to a separate medical condition and notes mood changes.
Clinical signs
Typical findings include impaired memory, thinking, or daily function, plus mood symptoms such as depression, irritability, or emotional lability. Clinical features vary; refer to documentation.
When to use this code
Use F02.83 when the provider documents dementia due to another condition and also documents mood disturbance, but does not specify mild, moderate, or severe severity. Make sure the underlying disease is identified elsewhere in the record and coded as required. If the note does not clearly support both dementia and mood disturbance, check documentation.
Do not use for
Do not use this code for primary dementia without an underlying disease, or for dementia with behavioral disturbance only. Do not assign it if mood disturbance is not documented.
Coding tip
Always verify the underlying cause and the mood disturbance are both documented before assigning F02.83.