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B00

B00: Herpesviral [herpes simplex] infections

Non-billable headerICD-10-CM

B00 is a non-billable header ICD-10-CM code for herpesviral [herpes simplex] infections. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • congenital herpesviral infections (P35.2)

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.

  • anogenital herpesviral infection (A60.-)
  • gammaherpesviral mononucleosis (B27.0-)
  • herpangina (B08.5)

Other codes that can never be billed with B00

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G02Meningitis in other infectious and parasitic diseases classified elsewhere
  • G05Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
  • H20.0Acute and subacute iridocyclitis
  • H62.4Otitis externa in other diseases classified elsewhere
  • J02.8Acute pharyngitis due to other specified organisms
  • J03.8Acute tonsillitis due to other specified organisms
  • K05.0Acute gingivitis
  • K12Stomatitis and related lesions

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead B00

9 child codes. Green means billable.

ICD-10-CMFY2027· effective October 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.