G20.B1: Parkinson's disease with dyskinesia, without mention of fluctuations
G20.B1 is the billable ICD-10-CM diagnosis code for Parkinson's disease with dyskinesia, without mention of fluctuations. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code G20.B1?
G20.B1 is the ICD-10-CM diagnosis code for Parkinson's disease with dyskinesia, without mention of fluctuations. It belongs to category G20 (Parkinson's disease).
Is G20.B1 a billable code?
Yes. G20.B1 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does G20.B1 belong to?
G20.B1 is part of ICD-10-CM category G20 — Parkinson's disease, which has 10 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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