G21.1 is the ICD-10 code for Other drug-induced secondary parkinsonism. It is a four-character subcategory of G21 (Secondary parkinsonism), the most specific level in the WHO edition. It belongs to the block G20–G26 (Extrapyramidal and movement disorders) in Chapter VI, Diseases of the nervous system.
- Code type
- Subcategory (4 characters)
- Chapter
- VI · G00–G99
- Classification
- WHO ICD-10, 2019 version
Coding notes
- Use additional external cause code (Chapter XX), if desired, to identify drug.
G21.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
G21.1Annen legemiddelutløst sekundær parkinsonisme
DG211Anden medikamentel parkinsonisme
G21.1Sonstiges arzneimittelinduziertes Parkinson-Syndrom
G21.1Autres syndromes parkinsoniens secondaires dus à des médicaments
G21.1overige vormen van secundair parkinsonisme ten gevolge van
Listed through more specific codes:
- G21.11Neuroleptic induced parkinsonism
- G21.19Other drug induced secondary parkinsonism
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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