Wound botulism

This code identifies a rare but serious form of botulism resulting from Clostridium botulinum spores germinating and producing toxin directly within a wound. The toxin then enters the bloodstream, causing flaccid paralysis. This condition is distinct from foodborne botulism, which is caused by ingesting pre-formed toxin.

Use this code when documentation clearly indicates botulism caused by toxin production within a wound, such as from contaminated injection sites, traumatic injuries, or surgical wounds. Supporting documentation should specify the wound as the source of infection and the presence of botulism symptoms.

• Differentiate carefully from foodborne botulism (A05.1) and infant botulism (A43.1).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Look for documentation of wound type, location, and the presence of Clostridium botulinum or its toxin in wound cultures or serum.