ICD-10-CM 2027
ICD-10 code for botulism
From the official ICD-10-CM alphabetic index entry “Botulism (foodborne intoxication)”. Page updated September 29, 2026.
About coding botulism
The ICD-10-CM code for botulism is A05.1 (Botulism food poisoning). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A05.1.
Within A05 (other bacterial foodborne intoxications, not elsewhere classified), A05.1 is specifically for botulism food poisoning. Related codes cover foodborne staphylococcal intoxication (A05.0), foodborne Clostridium perfringens [Clostridium welchii] intoxication (A05.2), foodborne Vibrio parahaemolyticus intoxication (A05.3), foodborne Bacillus cereus intoxication (A05.4), foodborne Vibrio vulnificus intoxication (A05.5), other specified bacterial foodborne intoxications (A05.8) and bacterial foodborne intoxication, unspecified (A05.9).
Don't report A05.1 together with the conditions in its Excludes1 note: infant botulism (A48.51) and wound botulism (A48.52).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific botulism codes (official index)
Don't confuse with (Excludes1 for A05.1)
Common questions about botulism ICD-10 codes
What is the ICD-10 code for botulism?
- A05.1 — Botulism food poisoning. More specific codes apply when the documentation supports them: A48.51, A48.52, A48.52.
What is the ICD-10 code for infant botulism?
- A48.51 — Infant botulism.
What is the ICD-10 code for non-foodborne botulism?
- A48.52 — Wound botulism.
What is the ICD-10 code for wound botulism?
- A48.52 — Wound botulism.
Is A05.1 billable?
- Yes. A05.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A05.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A05.1 as a principal diagnosis.
Is A05.1 a CC or MCC?
- A05.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.