A28
⚠ Non-billable
Other zoonotic bacterial diseases, not elsewhere classified
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
A28
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code A28?
ICD-10-CM code A28 represents Other zoonotic bacterial diseases, not elsewhere classified. It is a non-billable header code requiring a more specific subcategory in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is A28 billable?
No. A28 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is A28 in?
A28 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the A28 category
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