A03 – Shigellosis
ICD-10-CM 2027 diagnosis code · Intestinal infectious diseases
ICD-10-CM code
A03
- Code
A03(claims format:A03)- Description
- Shigellosis
- 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 A03
A03 is a header code and cannot be used on claims. Choose the most specific code:
Frequently asked questions
What is ICD-10 code A03?
A03 is the ICD-10-CM code for shigellosis, in the block A00-A09 (Intestinal infectious diseases).
Is A03 a billable code?
No. A03 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.