Alzheimer's disease

This code represents Alzheimer's disease, a progressive neurodegenerative disorder characterized by gradual cognitive decline, memory loss, and behavioral changes. It is the most common cause of dementia, leading to impaired daily functioning and eventual complete dependence.

Use this code when documentation clearly indicates a diagnosis of Alzheimer's disease. This diagnosis is typically made based on clinical evaluation, cognitive assessments, and exclusion of other causes of dementia. Supporting documentation includes physician notes detailing cognitive deficits, functional decline, and diagnostic workup findings consistent with Alzheimer's.

• Do not use this code for other forms of dementia; ensure the documentation specifically states "Alzheimer's."
• Code any associated behavioral disturbances or psychiatric symptoms separately, if documented.
• Consider sequencing this code as the primary diagnosis when it is the main reason for the encounter or hospitalization.