ICD-10-CM
ICD-10 code for Bacillus abortus infection: A23.1
The ICD-10-CM index points "Bacillus abortus infection" to A23.1, Brucellosis due to Brucella abortus. A23.1 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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