ICD-10 Code H10.52 – Angular blepharoconjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.52 – Angular blepharoconjunctivitis
What it is
H10.52 identifies inflammation affecting the eyelid corners and adjacent conjunctiva. Use it for angular blepharoconjunctivitis when documentation names this specific condition.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include redness, irritation, tearing, crusting, or soreness at the inner or outer canthi.
When to use this code
Use this code when the provider documents angular blepharoconjunctivitis or similar corner-of-eye inflammation. It fits encounters focused on conjunctival and eyelid-margin involvement at the angles of the eye. Check documentation if the note only says conjunctivitis or blepharitis.
Do not use for
Do not use H10.52 for nonspecific conjunctivitis without angular involvement. If the record describes another type of blepharitis, allergic eye disease, or an unspecified eye condition, choose the code that matches the documented diagnosis.
Coding tip
Code from the provider’s exact wording, and verify whether the condition is specifically angular rather than general conjunctivitis or blepharitis.