ICD-10 Code F02.80 – Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F02.80 – Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
What it is
This code identifies dementia caused by another underlying disease, when the dementia severity is not specified and no behavioral, psychotic, mood, or anxiety disturbance is documented. Use it when the chart links dementia to an external condition but gives no further detail.
Clinical signs
Clinical features vary; refer to documentation. Typical dementia findings include impaired memory, reduced judgment, and difficulty with daily activities, but the record must support dementia and an associated underlying disease.
When to use this code
Use F02.80 when the provider documents dementia due to another disease and does not specify severity or associated behavioral symptoms. You should also confirm that the underlying condition is documented elsewhere in the record. If the note names agitation, psychosis, depression, or anxiety, choose a more specific code.
Do not use for
Do not use this code for dementia without an underlying disease, or when behavioral disturbance, psychotic disturbance, mood disturbance, or anxiety is documented. Check documentation if the record uses a different dementia type or severity.
Coding tip
Link the dementia to the underlying disease in the record before assigning F02.80.