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Atypical parkinsonism

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Atypical parkinsonism is a term used to describe several neurodegenerative conditions where the degeneration extends beyond the substantia nigra and is more extensive than seen in conditions like Parkinson disease. The clinical picture is often more complex than PD and patients may have apraxia, supranuclear ophthalmoplegia or autonomic failure.

code elsewhere

• Multiple system atrophy, Parkinsonism  (8D87.01)
• Lewy body disease  (8A22)

sections/codes in this section (8A00.1-8A00.1)

• Progressive supranuclear palsy  (8A00.10)
• Other specified atypical parkinsonism  (8A00.1Y)
• Atypical parkinsonism, unspecified  (8A00.1Z)

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