Convert ICD-10 G20 to ICD-9

ICD-10 code G20, Parkinson's disease, crosswalked to ICD-9 with the official CMS General Equivalence Mappings. Convert another code below.

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Official CMS General Equivalence Mappings Final GEMs release (FY 2018) Maps in both directions

1 ICD-9 mapping for ICD-10 G20

From the official CMS General Equivalence Mappings. Review each mapping's flags before selecting the final code. Convert another code

ICD-10 code G20, "Parkinson's disease", maps to ICD-9 code 332.0, "Paralysis agitans". The mapping is flagged approximate: it is the closest available equivalent, not an exact match, so review the clinical documentation when selecting the final code. The crosswalk comes from the official CMS General Equivalence Mappings.

ICD‑10 Code

G20

Parkinson's disease

ICD‑9 Code

332.0

Paralysis agitans

Approximate Flag – This ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option and may not fully capture the original diagnosis.

See everything about the source code, including its category, synonyms, and history: open the G20 code page → Or run the reverse crosswalk: convert 332.0 back to ICD-10 →