ICD-10 Code H10.431 – Chronic follicular conjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.431 – Chronic follicular conjunctivitis, right eye
What it is
H10.431 identifies chronic follicular conjunctivitis affecting the right eye. Use it when documentation shows a long-lasting conjunctival inflammation with follicle formation limited to the right side.
Clinical signs
Typical findings include conjunctival redness, irritation, and visible follicles on the palpebral conjunctiva. Clinical features vary; refer to documentation for laterality and chronicity.
When to use this code
Use this code when the provider documents chronic follicular conjunctivitis in the right eye specifically. It also fits cases where the record clearly states persistent follicular conjunctival inflammation with right-eye laterality. Check documentation if the note does not confirm chronicity or side.
Do not use for
Do not use this code for conjunctivitis without follicular changes, acute cases, or unspecified laterality. If the record does not identify the right eye, check documentation.
Coding tip
Always verify both chronicity and laterality in the note before assigning H10.431.