G21.2
BillableSecondary parkinsonism due to other external agents
G21.2 is the ICD-10-CM code for Secondary parkinsonism due to other external agents. It is a billable, specific code valid for reimbursement.
G00-G99 Diseases of the nervous system
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Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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