ICD-9-CM diagnosis code (retired)
258.03 — Multiple endocrine neoplasia [MEN] type IIB
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 258.03
258.03 is an ICD-9-CM diagnosis code for multiple endocrine neoplasia [MEN] type IIB. 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, E31.23 (Multiple endocrine neoplasia [MEN] type IIB). The match is exact.
ICD-10-CM equivalents
- E31.23Multiple endocrine neoplasia [MEN] type IIBexact match
Common questions about 258.03
What is the ICD-10 code for ICD-9 258.03?
- The GEMs map 258.03 to ICD-10-CM E31.23.
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.