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G21 Secondary parkinsonism
BackG21.0Malignant neuroleptic syndromeCategoryG21.1Other drug-induced secondary parkinsonismCategory2 →G21.11Neuroleptic induced parkinsonismCategoryG21.19Other drug induced secondary parkinsonismCategoryG21.2Secondary parkinsonism due to other external agentsCategoryG21.3Postencephalitic parkinsonismCategoryG21.4Vascular parkinsonismCategoryG21.8Other secondary parkinsonismCategoryG21.9Secondary parkinsonism, unspecifiedCategory
Category
G21
Secondary parkinsonism
EXCLUDES
Excludes1: Huntington's disease (G10)
neurocognitive disorder with Lewy bodies (G31.83)
Shy-Drager syndrome (G90.3)
syphilitic Parkinsonism (A52.19)
neurocognitive disorder with Lewy bodies (G31.83)
Shy-Drager syndrome (G90.3)
syphilitic Parkinsonism (A52.19)
- Chapter
- VI · Diseases of the nervous system
- Section
- G20-G26
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.