ICD-10 Code A23.2 – Brucellosis due to Brucella suis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A23.2 – Brucellosis due to Brucella suis
What it is
A23.2 identifies brucellosis caused by Brucella suis, a zoonotic bacterial infection usually linked to exposure to infected pigs or their products. Use this code when the organism is documented as B. suis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include fever, sweats, malaise, fatigue, and joint or muscle pain, with possible systemic illness.
When to use this code
Use A23.2 when the provider documents brucellosis due to Brucella suis, or when culture, serology, or other clinical evidence specifically identifies that organism. Code the confirmed etiology rather than a nonspecific brucellosis code when documentation supports it.
If the record only says “brucellosis” or another Brucella species, check documentation before assigning A23.2. This code is for the infection itself, not for exposure without disease.
Do not use for
Do not use this code for brucellosis caused by other Brucella species or for suspected infection without confirmation. Do not code simple exposure, screening, or carrier status as A23.2.
Coding tip
Verify the species name in the chart; if Brucella suis is not documented, use the more specific or unspecified code supported by the record.