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ICD-10-CM category

G20: Parkinson's disease

7 subcodes · 5 billable · Look up any code with the ICD-10 search

Codes under G20 (Parkinson's disease). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
G20.AParkinson's disease without dyskinesia—
G20.A1Parkinson's disease without dyskinesia, without mention of fluctuations✓
G20.A2Parkinson's disease without dyskinesia, with fluctuations✓
G20.BParkinson's disease with dyskinesia—
G20.B1Parkinson's disease with dyskinesia, without mention of fluctuations✓
G20.B2Parkinson's disease with dyskinesia, with fluctuations✓
G20.CParkinsonism, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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