ICD-10 Code H01.0 – Blepharitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H01.0 – Blepharitis
What it is
H01.0 identifies blepharitis, an inflammation of the eyelid margins. Use it when documentation describes lid-margin irritation, crusting, or chronic eyelid inflammation.
Clinical signs
Common findings include red, swollen eyelid edges, burning, itching, and scaling or crusting at the lashes. Clinical features vary; refer to documentation.
When to use this code
Use H01.0 when the provider documents blepharitis without a more specific subtype. It may also fit chronic eyelid-margin inflammation noted on exam or in the assessment. If the record specifies laterality or a more detailed diagnosis, code to the highest documented specificity.
Do not use for
Do not use this code for isolated conjunctivitis, stye, chalazion, or nonspecific eye redness unless blepharitis is documented. Check documentation.
Coding tip
Look for eyelid-margin language in the assessment, not just eye irritation, before assigning H01.0.