G21.1

Other drug-induced secondary parkinsonism

Coding guidance (WHO 2019)

Use additional external cause code (Chapter XX), if desired, to identify drug.

Sibling codes

G21Secondary parkinsonism G21.0Malignant neuroleptic syndrome G21.2Secondary parkinsonism due to other external agents G21.3Postencephalitic parkinsonism G21.4Vascular parkinsonism G21.8Other secondary parkinsonism G21.9Secondary parkinsonism, unspecified