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B10

B10Other human herpesviruses

Non-billable headerICD-10-CM

B10 is a non-billable header ICD-10-CM code for other human herpesviruses. 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.

  • cytomegalovirus (B25.9)
  • Epstein-Barr virus (B27.0-)
  • herpes NOS (B00.9)
  • herpes simplex (B00.-)
  • herpes zoster (B02.-)
  • human herpesvirus NOS (B00.-)
  • human herpesvirus 1 and 2 (B00.-)
  • human herpesvirus 3 (B01.-, B02.-)
  • human herpesvirus 4 (B27.0-)
  • human herpesvirus 5 (B25.-)
  • varicella (B01.-)
  • zoster (B02.-)

Other codes that can never be billed with B10

These codes carry an Excludes1 note pointing at B10. 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 alone.

  • A85Other viral encephalitis, not elsewhere classified
  • B00.4Herpesviral encephalitis

Risk adjustment

B10 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 B10

2 child codes. Green means billable.

Questions about B10

Is B10 a billable ICD-10-CM code?
No. B10 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B10 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Other human herpesviruses (B10).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.