ICD-9-CM diagnosis code (retired)
471.8 — Other polyp of sinus
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 471.8
471.8 is an ICD-9-CM diagnosis code for other polyp of sinus. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, J33.8 (Other polyp of sinus). The match is exact.
ICD-10-CM equivalents
- J33.8Other polyp of sinusexact match
Common questions about 471.8
What is the ICD-10 code for ICD-9 471.8?
- The GEMs map 471.8 to ICD-10-CM J33.8.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.