ICD-10 Code H01.01 – Ulcerative blepharitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.01 – Ulcerative blepharitis
What it is
Ulcerative blepharitis is inflammation of the eyelid margins with ulceration, usually affecting the eyelash roots. It is a specific blepharitis code when the record documents ulcerative disease rather than nonspecific eyelid inflammation.
Clinical signs
Typical findings include red, swollen lid margins, crusting, and small ulcerations at the base of the lashes. Patients may report irritation, burning, itching, or a foreign-body sensation; clinical features vary, so refer to documentation.
When to use this code
Use H01.01 when the provider documents ulcerative blepharitis, including chronic or recurrent lid-margin ulceration. Code it when the note clearly distinguishes this condition from simple blepharitis, conjunctivitis, or other eyelid disorders. Check documentation if laterality or acuity is specified.
Do not use for
Do not use this code for nonspecific blepharitis without ulceration, conjunctivitis, or chalazion. If the chart does not clearly support ulcerative disease, check documentation and code the documented eyelid condition instead.
Coding tip
Confirm that “ulcerative” is explicitly documented before assigning H01.01.