A05 – Other bacterial foodborne intoxications, not elsewhere classified

ICD-10-CM 2027 diagnosis code · Intestinal infectious diseases

Non-billable header

ICD-10-CM code A05

Code: A05 (claims format: A05)
Description: Other bacterial foodborne intoxications, not elsewhere classified
Short description: Oth bacterial foodborne intoxications, NEC
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: A00-A09 Intestinal infectious diseases

Billable codes under A05

A05 is a header code and cannot be used on claims. Choose the most specific code:

A05.0 – Foodborne staphylococcal intoxicationBillable
A05.1 – Botulism food poisoningBillable
A05.2 – Foodborne Clostridium perfringens [Clostridium welchii] intoxicationBillable
A05.3 – Foodborne Vibrio parahaemolyticus intoxicationBillable
A05.4 – Foodborne Bacillus cereus intoxicationBillable
A05.5 – Foodborne Vibrio vulnificus intoxicationBillable
A05.8 – Other specified bacterial foodborne intoxicationsBillable
A05.9 – Bacterial foodborne intoxication, unspecifiedBillable

Notes for A05

Excludes1 (not coded here):

Clostridium difficile foodborne intoxication and infection (A04.7-)
Escherichia coli infection (A04.0-A04.4)
listeriosis (A32.-)
salmonella foodborne intoxication and infection (A02.-)
toxic effect of noxious foodstuffs (T61-T62)

Frequently asked questions

What is ICD-10 code A05?

A05 is the ICD-10-CM code for other bacterial foodborne intoxications, not elsewhere classified, in the block A00-A09 (Intestinal infectious diseases).

Is A05 a billable code?

No. A05 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.