ICD-10-CM
ICD-10 code for Paralysis, paralytic (complete) (incomplete) agitans: G20.C
The ICD-10-CM index points "Paralysis, paralytic (complete) (incomplete) agitans" to G20.C, Parkinsonism, unspecified. G20.C is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
More specific codes in G20
A header groups codes and is not billed. A billable code is one you can report.
- G20Parkinson's diseaseHeader
- G20.AParkinson's disease without dyskinesiaHeader
- G20.A1Parkinson's disease without dyskinesia, without mention of fluctuationsBillable
- G20.A2Parkinson's disease without dyskinesia, with fluctuationsBillable
- G20.BParkinson's disease with dyskinesiaHeader
- G20.B1Parkinson's disease with dyskinesia, without mention of fluctuationsBillable
- G20.B2Parkinson's disease with dyskinesia, with fluctuationsBillable
- G20.CParkinsonism, unspecifiedBillable
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From G20. A note on a category applies to every code under it.
Use additional code, if applicable, to identify:
- F02.84, F02.A4, F02.B4, F02.C4Dementia with anxiety
- F02.81-, F02.A1-, F02.B1-, F02.C1-Dementia with behavioral disturbance
- F02.83, F02.A3, F02.B3, F02.C3Dementia with mood disturbance
- F02.82, F02.A2, F02.B2, F02.C2Dementia with psychotic disturbance
- F02.80, F02.A0, F02.B0, F02.C0Dementia without behavioral disturbance
- F06.7-Mild neurocognitive disorder due to known physiological condition
Excludes1
Excludes1 means these codes are not reported together.
Related conditions
Related pages
- G20.C code detailsNotes, nearby codes, CMS-HCC group
- Category G20Every code under it
- Chapter 6Diseases of the nervous system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Paralysis, paralytic (complete) (incomplete) agitans?
The ICD-10-CM index points "Paralysis, paralytic (complete) (incomplete) agitans" to G20.C, Parkinsonism, unspecified. G20.C is a billable code.
Is G20.C billable?
Yes. G20.C is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to G20.C?
The CDC tabular list gives 4 Excludes1 notes (not coded together), 7 "use additional code" notes for G20.C and the categories above it. They are listed on this page.
What chapter is G20.C in?
Chapter 6. Diseases of the nervous system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.