ICD-10 Code H10.5 – Blepharoconjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.5 – Blepharoconjunctivitis
What it is
Blepharoconjunctivitis is inflammation involving both the eyelid margins and the conjunctiva. Use this code when the record shows a combined eyelid-and-eye-surface inflammatory condition.
Clinical signs
Common findings include red, irritated eyes with lid margin inflammation, crusting, tearing, itching, or a foreign-body sensation. Clinical features vary; refer to documentation.
When to use this code
Use H10.5 when the provider documents blepharoconjunctivitis or clearly describes concurrent blepharitis and conjunctivitis. It may also fit when the note identifies inflammation affecting both the eyelids and conjunctiva without a more specific subtype. Check documentation if the record separates the conditions or names a different cause.
Do not use for
Do not use this code for isolated conjunctivitis or isolated blepharitis. If the chart specifies an infectious, allergic, or other more specific diagnosis, code that condition instead.
Coding tip
Look for wording that links the eyelid and conjunctival inflammation together; if only one site is documented, choose the more specific code.