ICD-10-CM Book 2025 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 6 G00-G99 Diseases of the nervous system /
G20-G26 Extrapyramidal and movement disorders /
G21 Secondary parkinsonism

  Billable ICD-10-CM Code G21.2
G21.2
Secondary parkinsonism due to other external agents
codeFirst
(T51-T65) to identify external agent