ICD-10 Code H10.413 – Chronic giant papillary conjunctivitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.413 – Chronic giant papillary conjunctivitis, bilateral
What it is
This code identifies chronic giant papillary conjunctivitis affecting both eyes. It describes a long-lasting inflammatory reaction of the upper eyelid conjunctiva, often linked to contact lens wear or other chronic irritation.
Clinical signs
Typical findings include itching, mucus discharge, redness, and enlarged papillae on the upper tarsal conjunctiva. Clinical features vary; refer to documentation.
When to use this code
Use H10.413 when the record clearly documents chronic giant papillary conjunctivitis in both eyes. Code it when the provider specifies bilateral involvement and the condition is not described as acute or unspecified. If laterality is unclear, check documentation.
Do not use for
Do not use this code for nonspecific conjunctivitis, allergic conjunctivitis, or single-eye disease. Do not assign it if the chart does not confirm chronic giant papillary conjunctivitis or bilateral involvement.
Coding tip
Verify both chronicity and laterality in the assessment before assigning H10.413.