Parkinson's disease

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

Billable FY2016 to FY2023, and a category header from FY2024.

Submit one of these 3 more specific codes instead:

G20.A Parkinson's disease without dyskinesia (also a header)
G20.B Parkinson's disease with dyskinesia (also a header)
G20.C Parkinsonism, unspecified

Use instead:

G20.A1 Parkinson's disease without dyskinesia, without mention of fluctuations stated for FY2023
G20.A2 Parkinson's disease without dyskinesia, with fluctuations stated for FY2023
G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations stated for FY2023
G20.B2 Parkinson's disease with dyskinesia, with fluctuations stated for FY2023

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Parkinson's disease
FY2024 Stopped being billable

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Use additional code

code, if applicable, to identify:
dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
dementia with mood disturbance (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-)

Also known as

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