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A23 Brucellosis

ICD-10-CM category A23 sits in Chapter 1 (Certain infectious and parasitic diseases, A00-B99). It contains 6 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in A23

CodeDescription
A23.0Brucellosis due to Brucella melitensis
A23.1Brucellosis due to Brucella abortus
A23.2Brucellosis due to Brucella suis
A23.3Brucellosis due to Brucella canis
A23.8Other brucellosis
A23.9Brucellosis, unspecified

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