ICD-10 Code B00.52 – Herpesviral keratitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B00.52 – Herpesviral keratitis
What it is
B00.52 identifies herpesviral keratitis, an eye infection or inflammation caused by herpes simplex virus. It involves the cornea and can affect vision if not recognized promptly.
Clinical signs
Typical findings include eye pain, redness, tearing, light sensitivity, and blurred vision. Corneal involvement may show dendritic lesions or other herpetic changes; clinical features vary, so refer to documentation.
When to use this code
Use B00.52 when the provider documents herpesviral keratitis, herpetic corneal infection, or HSV keratitis. Code it for confirmed corneal disease affecting the eye, not for nonspecific conjunctivitis or a history of herpes alone.
Do not use for
Do not use this code for herpes simplex without corneal involvement, or for other viral eye infections. If the record does not clearly identify keratitis, check documentation.
Coding tip
Assign B00.52 only when the chart links herpesvirus to keratitis, and use the most specific eye diagnosis documented.