Brucellosis (A23) ICD-10-CM
The A23 code range covers brucellosis with 7 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Malta fever
- Mediterranean fever
- undulant fever
Codes in the A23 Range 7 codes · 6 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A23 range.
Brucellosis
Infection caused by bacteria of the genus BRUCELLA mainly involving the MONONUCLEAR PHAGOCYTE SYSTEM. This condition is characterized by fever, weakness, malaise, and weight loss.
Brucellosis, Bovine
A disease of cattle caused by bacteria of the genus BRUCELLA leading to abortion in late pregnancy. BRUCELLA ABORTUS is the primary infective agent.
About the A23 Code Range
Brucellosis is an infection caused by Brucella bacteria, characterized by fever, weakness, feeling unwell, and weight loss. It sits among bacterial diseases associated with animals.
The subdivisions distinguish brucellosis by the Brucella species named in the title: A23.0 for melitensis, A23.1 for abortus, A23.2 for suis, and A23.3 for canis. A23.8 is other brucellosis; A23.9 is unspecified brucellosis.
Questions About This Page
How many billable codes are in the A23 range?
Of the 7 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A23 range classify?
The range classifies brucellosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
