ICD-9-CM diagnosis code (retired)
209.01 — Malignant carcinoid tumor of the duodenum
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 209.01
209.01 is an ICD-9-CM diagnosis code for malignant carcinoid tumor of the duodenum. 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, C7A.010 (Malignant carcinoid tumor of the duodenum). The match is exact.
ICD-10-CM equivalents
- C7A.010Malignant carcinoid tumor of the duodenumexact match
Common questions about 209.01
What is the ICD-10 code for ICD-9 209.01?
- The GEMs map 209.01 to ICD-10-CM C7A.010.
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.