A02.9 Salmonella infection, unspecified
The ICD-10-CM code for Salmonella infection, unspecified is A02.9 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- A00-A09: Intestinal infectious diseases (A00-A09)
- Category A02
- 13 codes (11 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to A02.9:
- Poisoning (acute) › Bacillus B (aertrycke) (cholerae (suis)) (paratyphosus) (suipestifer)
- Poisoning (acute) › Salmonella (arizonae) (cholerae-suis) (enteritidis) (typhimurium)
- Infection, infected, infective (opportunistic) › Salmonella (aertrycke) (arizonae) (cholerae-suis) (enteritidis) (gallinarum) (suipestifer) (typhimurium)
- Infection, infected, infective (opportunistic) › Salmonella (aertrycke) (arizonae) (cholerae-suis) (enteritidis) (gallinarum) (suipestifer) (typhimurium) › due to food (poisoning)
- Poisoning (acute) › food NEC › due to › salmonella (aertrycke) (choleraesuis) (enteritidis) (gallinarum) (paratyphi) (suipestifer)
- Poisoning (acute) › food NEC › due to › Bacillus (aertrycke) (choleraesuis) (paratyphosus) (suipestifer)
- Intoxication › foodborne › due to › Salmonella
U.S. Hospital Utilization
- An estimated 3,405 U.S. inpatient stays in 2023 included A02.9 among the documented diagnoses.
- 745 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
HIV Infections (TOC entry)a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19
Infectious agents causing diseases in other chapters (TOC)b. Infectious agents as the cause of diseases classified to other chapters ................................. 22
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026