Groundbreaking: First-Ever HCC RAF Score Accessible Through REST API
First-Ever HCC RAF Score Accessible Through REST API
Check Now
Image depicting the concept of elevating provider support and enhancing concurrent coding for risk adjustment in healthcare.
Elevate Provider Support:
Enhance Your Concurrent Coding
for Risk Adjustment
Check Now
ICD-10-CM Codes G00-G99 G20-G26 G20

ICD-10-CM Diagnosis Code G20

Parkinson's disease

Effective Date: 10/01/2015 To 09/30/2023
Go Back to Chapter - G00-G99 | Section - G20-G26 Go back

Applicable To for G20:

  • Hemiparkinsonism

  • Idiopathic Parkinsonism or Parkinson's disease

  • Paralysis agitans

  • Primary Parkinsonism or Parkinson's disease

Use Additional for G20:

  • code, if applicable, to identify:

  • dementia with anxiety (F02.F02.84">F02.84, F02.A4, F02.B4, F02.C4)

  • dementia with behavioral disturbance (F02.F02.81">F02.81-, F02.A1-, F02.B1-, F02.C1-)

  • dementia with mood disturbance (F02.F02.83">F02.83, F02.A3, F02.B3, F02.C3)

  • dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)

  • dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)

  • mild neurocognitive disorder due to known physiological condition (F06.7-)

Codes Hierarchy:

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