ICD-10 Code H10.013 – Acute follicular conjunctivitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.013 – Acute follicular conjunctivitis, bilateral
What it is
H10.013 identifies an acute inflammation of the conjunctiva in both eyes with a follicular pattern. Use it when the provider documents bilateral acute follicular conjunctivitis.
Clinical signs
Typical findings include conjunctival redness, irritation, tearing, and follicular changes on exam. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states acute follicular conjunctivitis affecting both eyes. It also fits bilateral cases described as follicular conjunctivitis without a more specific alternative code. If laterality is not documented, check documentation before assigning a bilateral code.
Do not use for
Do not use it for unilateral conjunctivitis or for non-follicular conjunctivitis. If the chart documents a different conjunctival disorder or only “conjunctivitis” without follicular detail, check documentation.
Coding tip
Verify both laterality and the word “follicular” in the provider note before coding H10.013.