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G20 - Parkinson's disease


The ICD 10 Code for Parkinson's disease is listed as G20.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: G20
Description: Parkinson's disease
  • Hemiparkinsonism
  • Idiopathic Parkinsonism or Parkinson's disease
  • Paralysis agitans
  • Parkinsonism or Parkinson's disease NOS
  • Primary Parkinsonism or Parkinson's disease
  • Excludes1: dementia with Parkinsonism (G31.83)
Diagnostic Related Groups
(MS-DRG v30.0)
056 - Degenerative Nervous System Disorders W Mcc
057 - Degenerative Nervous System Disorders W/o Mcc
Chapter Diseases of the nervous system (G00-G99)
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 332.0 - Paralysis agitans (approximate)