ICD-10 code	Description
G20	Parkinson's disease
G21.0  	Malignant neuroleptic syndrome
G21.11  	Neuroleptic induced parkinsonism
G21.19  	Other drug induced secondary parkinsonism
G21.2  	Secondary parkinsonism due to other external agents
G21.3  	Postencephalitic parkinsonism
G21.4  	Vascular parkinsonism
G21.8  	Other secondary parkinsonism
G21.9  	Secondary parkinsonism, unspecified
G22	Parkinsonism in diseases classified elsewhere
F02.3	Dementia in Parkinson's disease
Y46.7	Antiparkinsonism drugs
G31.83	Lewy body dementia