G20.C
Parkinsonism, unspecified
- Release
- FY 2027
- Effective
Hierarchy
Where G20.C sits in the official hierarchy. Each level is the code it is classified under.
- G20 Parent Parkinson's disease
- G20.C This code Parkinsonism, unspecified
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Parkinsonism, NOS
Excludes1
Parkinson's disease NOS ( G20.A1 )
Excludes1
Parkinson's disease with dyskinesia ( G20.B- )
Excludes1
Parkinson's disease without dyskinesia ( G20.A- )
Excludes1
secondary parkinsonism ( G21 .-)
Use Additional Code
dementia with anxiety ( F02.84 , F02.A4 , F02.B4 , F02.C4 )
Inherited from G20 — Parkinson's disease
Use Additional Code
dementia with behavioral disturbance ( F02.81- , F02.A1- , F02.B1- , F02.C1- )
Inherited from G20 — Parkinson's disease
Use Additional Code
dementia with mood disturbance ( F02.83 , F02.A3 , F02.B3 , F02.C3 )
Inherited from G20 — Parkinson's disease
Use Additional Code
dementia with psychotic disturbance ( F02.82 , F02.A2 , F02.B2 , F02.C2 )
Inherited from G20 — Parkinson's disease
Version History
How G20.C appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentParkinsonism, unspecified
-
FY 2026 Effective
UnchangedParkinsonism, unspecified
Related Codes
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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