ICD-10 Code B30.3 – Acute epidemic hemorrhagic conjunctivitis (enteroviral) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B30.3 – Acute epidemic hemorrhagic conjunctivitis (enteroviral)
What it is
B30.3 identifies acute epidemic hemorrhagic conjunctivitis caused by enterovirus. Use it for a sudden, contagious viral eye infection that produces conjunctival inflammation and bleeding.
Clinical signs
Typical findings include red eye, eye pain or irritation, tearing, swelling, and subconjunctival hemorrhage. Clinical features vary; refer to documentation for confirmed enteroviral hemorrhagic conjunctivitis.
When to use this code
Use B30.3 when the record specifically documents epidemic hemorrhagic conjunctivitis, enteroviral conjunctivitis, or acute hemorrhagic conjunctivitis due to enterovirus. It fits outpatient, emergency, or inpatient encounters when the diagnosis is established or clearly stated by the provider.
If the note only says conjunctivitis without a viral or hemorrhagic description, check documentation before assigning this code. Code the documented type, not presumed infectious eye disease.
Do not use for
Do not use B30.3 for bacterial, allergic, or nonspecific conjunctivitis. Check documentation if the chart describes eye redness without hemorrhagic or enteroviral confirmation.
Coding tip
Assign B30.3 only when the provider links the conjunctivitis to an enteroviral hemorrhagic outbreak or diagnosis.