ICD-10 Code H10.433 – Chronic follicular conjunctivitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.433 – Chronic follicular conjunctivitis, bilateral
What it is
H10.433 identifies long-lasting follicular inflammation of both conjunctivae. Use this code when documentation specifies chronic follicular conjunctivitis affecting both eyes.
Clinical signs
Typical findings include conjunctival follicles, redness, irritation, and a persistent or recurrent course. Clinical features vary; refer to documentation.
When to use this code
Use H10.433 when the provider documents chronic follicular conjunctivitis and clearly states bilateral involvement. It fits outpatient, specialist, or problem-list documentation describing both eyes. If the note only says conjunctivitis without chronicity or laterality, check documentation.
Do not use for
Do not use this code for acute conjunctivitis, unspecified conjunctivitis, or unilateral follicular conjunctivitis. Avoid it when the record does not confirm both eyes.
Coding tip
Confirm both chronicity and bilateral laterality in the assessment before assigning H10.433.