A28
A28 — Other zoonotic bacterial diseases, not elsewhere classified
Non-billable headerICD-10-CM
A28 is a non-billable header ICD-10-CM code for other zoonotic bacterial diseases, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with A28
These codes carry an Excludes1 note pointing at A28. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A28 alone.
- A04.6Enteritis due to Yersinia enterocolitica
Risk adjustment
A28 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead A28
5 child codes. Green means billable.
Questions about A28
- Is A28 a billable ICD-10-CM code?
- No. A28 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does A28 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Certain zoonotic bacterial diseases (A20-A28).