Neurocognitive disorder with Lewy bodies

This code identifies a neurodegenerative disorder characterized by progressive cognitive decline, fluctuating attention and alertness, recurrent visual hallucinations, and spontaneous parkinsonism. It is a form of dementia associated with abnormal protein deposits (Lewy bodies) in the brain.

Assign this code for patients diagnosed with neurocognitive disorder where Lewy bodies are the underlying pathological cause. Documentation should clearly indicate the presence of dementia along with characteristic features such as visual hallucinations, parkinsonism, or REM sleep behavior disorder.

• Differentiate from Alzheimer's disease with Lewy bodies; this code is for primary Lewy body dementia.
• Ensure documentation specifies "with Lewy bodies" to support this specific diagnosis.
• Code any associated parkinsonism or other neurological manifestations separately if they are distinct and require additional reporting.