A05.1 Botulism food poisoning

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Botulism food poisoning is A05.1 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

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 A05.1:

  • Botulism (foodborne intoxication)
  • Poisoning (acute) › Clostridium botulinum
  • Poisoning (acute) › botulism
  • Intoxication › foodborne › classical (Clostridium botulinum)
  • Poisoning (acute) › Bacillus B (aertrycke) (cholerae (suis)) (paratyphosus) (suipestifer) › botulinus
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › Clostridium › botulinum (food poisoning)
  • Infection, infected, infective (opportunistic) › Clostridium NEC › botulinum (food poisoning)
  • Intoxication › foodborne › due to › Clostridium › botulinum
Excludes1
Not coded here. These conditions should NOT be coded together with A05.1.
  • infant botulism (A48.51)
  • wound botulism (A48.52)

Inclusion Terms

  • Botulism NOS
  • Classical foodborne intoxication due to Clostridium botulinum

U.S. Hospital Utilization

  • An estimated 85 U.S. inpatient stays in 2023 included A05.1 among the documented diagnoses.

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

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

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

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

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

References

Related Codes

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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