ICD-10 Code H10.419 – Chronic giant papillary conjunctivitis, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.419 – Chronic giant papillary conjunctivitis, unspecified eye
What it is
This code identifies chronic giant papillary conjunctivitis affecting an unspecified eye. It describes a long-lasting inflammatory reaction of the conjunctiva, often involving papillae on the inner eyelid.
Clinical signs
Typical findings include itching, mucus discharge, redness, and a gritty or foreign-body sensation. Clinical features vary; refer to documentation for evidence of giant papillae or chronic conjunctival inflammation.
When to use this code
Use H10.419 when the clinician documents chronic giant papillary conjunctivitis and does not specify the right or left eye. It also fits when the record clearly supports the diagnosis but laterality is not stated. If the note only says conjunctivitis without the chronic giant papillary type, check documentation.
Do not use for
Do not use this code for acute conjunctivitis, allergic conjunctivitis, or other non-gigant papillary forms. If the eye laterality is documented, use the more specific code instead.
Coding tip
Confirm both the chronic giant papillary diagnosis and the unspecified laterality before assigning H10.419.