B33
B33 — Other viral diseases, not elsewhere classified
Non-billable headerICD-10-CM
B33 is a non-billable header ICD-10-CM code for other viral 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 B33
These codes carry an Excludes1 note pointing at B33. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B33 alone.
Risk adjustment
B33 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 B33
6 child codes. Green means billable.
Questions about B33
- Is B33 a billable ICD-10-CM code?
- No. B33 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does B33 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Other viral diseases (B25-B34).