1A11

ICD-11 MMS 2026-01

Botulism

Description

A disease caused by an infection with the gram-positive bacteria Clostridium botulinum. This disease commonly presents with abdominal pain, vomiting, acute paralysis, blurred vision, diplopia, and may be fatal. Transmission is by ingestion of contaminated food, direct contact, or from accidental overdose. Confirmation is by identification of Clostridium botulinum in a faecal or food sample.

Exclusions from above levels

  • 1A09 – salmonella foodborne intoxication and infection
  • 1C1A – Listeriosis
  • NE61 – Harmful effects of or exposure to noxious substances, Substances chiefly nonmedicinal as to source, Other noxious substances eaten as food
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  • NE83.1 – Infection arising from device, implant or graft, not elsewhere classified

Child codes

  • 1A11.0 – Foodborne intoxication by botulinum toxin
  • 1A11.1 – Other forms of botulism
  • 1A11.Z – Botulism, unspecified

Sibling codes

  • 1A10 – Foodborne staphylococcal intoxication
  • 1A12 – Foodborne Clostridium perfringens intoxication
  • 1A13 – Foodborne Bacillus cereus intoxication
  • 1A1Y – Other specified bacterial foodborne intoxications
  • 1A1Z – Bacterial foodborne intoxications, unspecified

Foundation entity

Botulism – http://id.who.int/icd/entity/78422942

Part of: 01: Certain infectious or parasitic diseases