Gas gangrene

This code represents clostridial myonecrosis, a severe and rapidly progressive soft tissue infection characterized by muscle necrosis, gas production, and systemic toxicity. It is typically caused by Clostridium perfringens and other clostridial species, often following trauma or surgery.

Use this code when documentation clearly indicates a diagnosis of gas gangrene, specifically clostridial myonecrosis. This diagnosis is supported by clinical findings such as crepitus, severe pain, rapidly spreading cellulitis, and often confirmed by Gram stain showing large Gram-positive rods and cultures.

• Ensure documentation specifies "gas gangrene" or "clostridial myonecrosis" to differentiate from other necrotizing soft tissue infections.
• Code any associated open wounds or injuries that served as the portal of entry.
• Consider sequencing this code as the principal diagnosis if it is the primary reason for admission and treatment.