Dem in other diseases classd elswhr, mild, with mood disturb

This code signifies mild dementia that is a manifestation of another underlying disease, such as Parkinson's disease, Huntington's disease, or HIV. The patient exhibits cognitive decline impacting instrumental activities of daily living, but basic self-care remains intact, and the dementia is accompanied by mood disturbances like depression, anxiety, or irritability.

Apply this code when documentation clearly links mild dementia to a specific, separately classified underlying disease and explicitly notes the presence of mood disturbance. This is appropriate for patients whose cognitive impairment is beyond normal aging but does not significantly impair basic ADLs. The physician's assessment must confirm the mild severity and the associated mood symptoms.

• Always sequence the underlying disease (e.g., G20 for Parkinson's) first, followed by this code.
• Ensure the documentation specifies "mild" dementia and explicitly mentions "mood disturbance" to support this specific subcategory.
• Do not use if the dementia is severe, moderate, or without mood disturbance, or if it's not clearly linked to another underlying disease.