G20 Parkinson's Disease

G21.0 Malignant neuroleptic syndrome

G21.1

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

G23 Other Degenerative Diseases of Basal Ganglia

G24 Dystonia

G24.0

Drug induced dystonia

G24.1

Genetic torsion dystonia

G24.2 Idiopathic nonfamilial dystonia

G24.3

Spasmodic torticollis

G24.4

Idiopathic orofacial dystonia

 G24.5 Blepharo-spasm

G24.8

Other dystonia

G25.0

Essential tremor

G25.1

Drug-induced tremor

G25.2

Other specified forms of tremor

G25.3 Myoclonus

G25.4

Drug-induced chorea

G25.5

Other

chorea

G25.6

Drug induced tics & other tics of organic origin

G25.7

Other & unspecified drug induced movement disorders

G25.8

Other specified extra-pyramidal & movement disorders

G25.9

Extra-pyramidal & movement disorder, unspecified

G26 Other Extrapyramidal & Movement Disorders in Diseases Classified Elsewhere