A28 – Other zoonotic bacterial diseases, not elsewhere classified
ICD-10-CM 2027 diagnosis code · Certain zoonotic bacterial diseases
ICD-10-CM code
A28
- Code
A28(claims format:A28)- Description
- Other zoonotic bacterial diseases, not elsewhere classified
- 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
- A20-A28 Certain zoonotic bacterial diseases
Billable codes under A28
A28 is a header code and cannot be used on claims. Choose the most specific code:
Frequently asked questions
What is ICD-10 code A28?
A28 is the ICD-10-CM code for other zoonotic bacterial diseases, not elsewhere classified, in the block A20-A28 (Certain zoonotic bacterial diseases).
Is A28 a billable code?
No. A28 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.