ICD-10 Code B00.7 – Disseminated herpesviral disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B00.7 – Disseminated herpesviral disease
What it is
B00.7 identifies a widespread herpesvirus infection affecting multiple body sites or organs. Use it when documentation states disseminated or disseminated herpesviral disease, not a localized cold sore or genital lesion.
Clinical signs
Clinical features vary; refer to documentation. Disseminated herpes infection may present with widespread skin lesions and systemic involvement, especially in patients with impaired immunity.
When to use this code
Use B00.7 when the provider documents disseminated herpesviral disease, herpes simplex infection with dissemination, or multi-site herpes involvement. It also applies when the record clearly describes generalized spread beyond a single localized outbreak. Check documentation if the note only says herpes without extent.
Do not use for
Do not use this code for localized herpes simplex, herpes labialis, or genital herpes limited to one site. If the record describes zoster or another herpesvirus condition, code the documented diagnosis instead.
Coding tip
Confirm that the chart explicitly supports dissemination; vague herpes documentation usually needs clarification.