Other bacterial foodborne intoxications, not elsewhere classified (A05) ICD-10-CM
The A05 code range covers other bacterial foodborne intoxications, not elsewhere classified with 9 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the A05 Range 9 codes · 8 billable
- A05 Other bacterial foodborne intoxications, not elsewhere classifiedNon-billable
- A05.0 Foodborne staphylococcal intoxication
- A05.1 Botulism food poisoning
- A05.2 Foodborne Clostridium perfringens [Clostridium welchii] intoxication
- A05.3 Foodborne Vibrio parahaemolyticus intoxication
- A05.4 Foodborne Bacillus cereus intoxication
- A05.5 Foodborne Vibrio vulnificus intoxication
- A05.8 Other specified bacterial foodborne intoxications
- A05.9 Bacterial foodborne intoxication, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A05 range.
Clostridium perfringens
The most common etiologic agent of GAS GANGRENE. It is differentiable into several distinct types based on the distribution of twelve different toxins.
Enterotoxemia
Disease caused by the liberation of exotoxins of CLOSTRIDIUM PERFRINGENS in the intestines of sheep, goats, cattle, foals, and piglets. Type B enterotoxemia in lambs is lamb dysentery; type C enterotoxemia in mature sheep produces struck, and in calves, lambs and piglets it produces hemorrhagic enterotoxemia; type D enterotoxemia in sheep and goats is pulpy-kidney disease or overeating disease.
About the A05 Code Range
The ICD-10 section A05 covers various bacterial foodborne intoxications that are not classified elsewhere, representing specific types of food poisoning caused by bacteria. These codes help identify distinct bacterial causes related to contaminated food.
This section includes A05.0 for staphylococcal food poisoning, often referred to as Staphylococcus aureus food poisoning. A05.1 codes for botulism food poisoning, linked to toxins from Clostridium botulinum. Other codes identify intoxications from bacteria such as A05.2 for Clostridium perfringens, A05.3 for Vibrio parahaemolyticus, A05.4 for Bacillus cereus, and A05.5 for Vibrio vulnificus. The A05.8 code includes other specified bacterial causes like Escherichia coli and Listeria monocytogenes. When the bacterial source is unknown, A05.9 is used to classify unspecified bacterial food poisoning. Understanding these distinctions is crucial for accurate documentation of diagnosis and treatment related to bacterial foodborne illnesses.
Questions About This Page
How many billable codes are in the A05 range?
Of the 9 codes in this range, 8 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the A05 range classify?
The range classifies other bacterial foodborne intoxications, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
