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ICD-10 diagnosis code

G21.3 Postencephalitic parkinsonism

This page in Swedish

G21.3 is the ICD-10 code for Postencephalitic 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

G21.3 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

G21.3Postencefalitisk parkinsonism

NorwayICD-10-NO

G21.3Parkinsonisme etter encefalitt

DenmarkICD-10-DK

DG213Postencefalitisk parkinsonisme

FinlandICD-10-FI

G21.3Aivotulehduksen jälkeinen parkinsonismi

GermanyICD-10-GM

G21.3Postenzephalitisches Parkinson-Syndrom

FranceICD-10-FR

G21.3Syndrome parkinsonien postencéphalitique

NetherlandsICD-10-NL

G21.3postencefalitisch parkinsonisme

United StatesICD-10-CM

G21.3Postencephalitic 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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