A05.2 Foodborne Clostridium perfringens [Clostridium welchii] intoxication

The ICD-10-CM code for Foodborne Clostridium perfringens [Clostridium welchii] intoxication is A05.2 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

1: Certain infectious and parasitic diseases (A00-B99)

Section

A00-A09: Intestinal infectious diseases (A00-A09)

Category A05

9 codes (8 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to A05.2:

• Pig-bel
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › necroticans
• Poisoning (acute) › food NEC › due to › Clostridium (perfringens) (Welchii)
• Infection, infected, infective (opportunistic) › Clostridium NEC › welchii › foodborne (disease)
• Infection, infected, infective (opportunistic) › Clostridium NEC › welchii › necrotizing enteritis
• Infection, infected, infective (opportunistic) › Clostridium NEC › perfringens › due to food
• Infection, infected, infective (opportunistic) › Clostridium NEC › perfringens › foodborne (disease)
• Intoxication › foodborne › due to › Clostridium › perfringens

Inclusion Terms

• Enteritis necroticans
• Pig-bel

U.S. Hospital Utilization

A05.2 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference A05.2 with the canonical source and edition:

A05.2 — Foodborne Clostridium perfringens [Clostridium welchii] intoxication. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/A05.2

Canonical URL: https://icd10codingpro.com/codes/A05.2