A05.2 — Foodborne Clostridium perfringens [Clostridium welchii] intoxication
A05.2 is a billable, specific ICD-10-CM code for foodborne clostridium perfringens [clostridium welchii] intoxication. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Enteritis necroticans
- Pig-bel
Risk adjustment
A05.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
A05.2 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58747Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
How A05.2 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A05.2.
- Pig-bel
- Enteritis›necroticans
- Infection, infected, infective›Clostridium NEC›perfringens›due to food
- Infection, infected, infective›Clostridium NEC›perfringens›foodborne(disease)
- Infection, infected, infective›Clostridium NEC›welchii›foodborne(disease)
- Infection, infected, infective›Clostridium NEC›welchii›necrotizing enteritis
- Poisoning›food NEC›due to›Clostridium(perfringens) (Welchii)
- Intoxication›foodborne›due to›Clostridium›perfringens
- Intoxication›foodborne›due to›Clostridium›welchii
Related codes at this level
Codes that share A05. If A05.2 is not quite right, the correct code is usually one of these.
- A05.0Foodborne staphylococcal intoxication
- A05.1Botulism food poisoning
- A05.3Foodborne Vibrio parahaemolyticus intoxication
- A05.4Foodborne Bacillus cereus intoxication
- A05.5Foodborne Vibrio vulnificus intoxication
- A05.8Other specified bacterial foodborne intoxications
- A05.9Bacterial foodborne intoxication, unspecified
Questions about A05.2
- Is A05.2 a billable ICD-10-CM code?
- Yes. A05.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does A05.2 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Intestinal infectious diseases (A00-A09).