ICD-10 Code B10.8 – Other human herpesvirus infection (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B10.8 – Other human herpesvirus infection
What it is
B10.8 identifies an infection caused by a human herpesvirus that does not fit a more specific ICD-10 category. Use it when the record documents a herpesvirus infection, but the exact type is not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Herpesvirus infections may present with fever, rash, mucocutaneous lesions, lymphadenopathy, or other organ involvement, depending on the virus and site of infection.
When to use this code
Use this code when the provider documents “other human herpesvirus infection” or identifies a human herpesvirus infection without naming a more specific codeable condition. It is appropriate when the chart supports herpesvirus infection, but the exact subtype is unclear or not listed in ICD-10-CM. Check documentation if the record names a specific herpesvirus.
Do not use for
Do not use B10.8 for herpes simplex, varicella, zoster, or other infections that have their own ICD-10-CM codes. Also avoid it when the documentation is nonspecific and does not support a confirmed human herpesvirus infection.
Coding tip
Code the most specific herpesvirus diagnosis documented; if the type is unspecified, verify whether B10.8 is the best match.