B10.0 — Other human herpesvirus encephalitis
B10.0 is a non-billable header ICD-10-CM code for other human herpesvirus encephalitis. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Excludes2 inherited from the categories above B10.0
Also inherited, and the opposite of Excludes1: these conditions are not part of B10.0, but a patient can have both, so you may code both.
Written on B10 — Other human herpesviruses
Other codes that can never be billed with B10.0
These codes carry an Excludes1 note pointing at B10.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B10.0 alone.
Risk adjustment
B10.0 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 history
B10.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead B10.0
2 child codes. Green means billable.
Related codes at this level
Codes that share B10. If B10.0 is not quite right, the correct code is usually one of these.
Questions about B10.0
- Is B10.0 a billable ICD-10-CM code?
- No. B10.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does B10.0 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Other human herpesviruses (B10).