ICD-10-CM > G00-G99 > G20-G26 > G20 > G20.B G20.B Parkinson's disease with dyskinesia Non-Billable/Non-Specific Type 1 Excludes drug induced dystonia (G24.0-) Codes G20.B1Parkinson's disease with dyskinesia, without mention of fluctuationsG20.B2Parkinson's disease with dyskinesia, with fluctuations