Convert ICD-10 R21 to ICD-9

ICD-10 code R21, Rash and other nonspecific skin eruption, 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 R21

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

ICD-10 code R21, "Rash and other nonspecific skin eruption", maps to ICD-9 code 782.1, "Nonspecif skin erupt NEC". This mapping carries no qualifying flags, so it is considered an exact equivalent. The crosswalk comes from the official CMS General Equivalence Mappings.

ICD‑10 Code

R21

Rash and other nonspecific skin eruption

ICD‑9 Code

782.1

Nonspecif skin erupt NEC

– This is a direct match with no additional mapping qualifiers.

See everything about the source code, including its category, synonyms, and history: open the R21 code page → Or run the reverse crosswalk: convert 782.1 back to ICD-10 →