ICD-9-CM diagnosis code (retired)
209.35 — Merkel cell carcinoma of the trunk
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 209.35
209.35 is an ICD-9-CM diagnosis code for Merkel cell carcinoma of the trunk. 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, C4A.59 (Merkel cell carcinoma of other part of trunk). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- C4A.59Merkel cell carcinoma of other part of trunkapproximate
Common questions about 209.35
What is the ICD-10 code for ICD-9 209.35?
- The GEMs map 209.35 to ICD-10-CM C4A.59.
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.