A23.1
Brucellosis due to Brucella abortus
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
A00-B99chapter
Excludes1
- certain localized infections - see body system-related chapters
Excludes2
- carrier or suspected carrier of infectious disease (Z22.-)Z22.-
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
- infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
- influenza and other acute respiratory infections (J00-J22)J00-J22
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 5
Index entries leading here 7
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
- abortus A23.1
- Infection, infected, infective (opportunistic) B99.9
- Brucellosis (infection) A23.9
- abortus A23.1
- Abortus fever A23.1
- Bacillus — see also Infection, bacillus
- abortus infection A23.1
- Disease, diseased — see also Syndrome
- Bang's (brucella abortus) A23.1
- Bang's disease (brucella abortus) A23.1
Alongside this code 5 same parent — A23
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.