ICD-9-CM diagnosis code (retired)
023.1 — Brucella abortus
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 023.1
023.1 is an ICD-9-CM diagnosis code for Brucella abortus. 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, A23.1 (Brucellosis due to Brucella abortus). The match is exact.
ICD-10-CM equivalents
- A23.1Brucellosis due to Brucella abortusexact match
Common questions about 023.1
What is the ICD-10 code for ICD-9 023.1?
- The GEMs map 023.1 to ICD-10-CM A23.1.
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.