Category G20

Parkinson's disease

Clinical Classification Guidelines

Inclusion Term

  • Hemiparkinsonism
  • Idiopathic Parkinsonism or Parkinson's disease
  • Paralysis agitans
  • Primary Parkinsonism or Parkinson's disease

Specific Diagnosis Codes

Parkinson's disease without dyskinesia
G20.A
Parkinson's disease without dyskinesia, without mention of fluctuations
G20.A1
Parkinson's disease without dyskinesia, with fluctuations
G20.A2
Parkinson's disease with dyskinesia
G20.B
Parkinson's disease with dyskinesia, without mention of fluctuations
G20.B1
Parkinson's disease with dyskinesia, with fluctuations
G20.B2
Parkinsonism, unspecified
G20.C