ICD-10 Code H10.13 – Acute atopic conjunctivitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.13 – Acute atopic conjunctivitis, bilateral
What it is
This code identifies an acute allergic inflammation of both conjunctivae associated with atopic disease. Use it when the record specifically documents bilateral atopic conjunctivitis.
Clinical signs
Typical findings include itchy, red, watery eyes with conjunctival irritation. Clinical features vary; refer to documentation for whether both eyes are involved and whether the condition is described as atopic.
When to use this code
Use H10.13 when the clinician documents acute atopic conjunctivitis affecting both eyes. It may also fit notes describing allergic conjunctival inflammation in a patient with atopic disease, if bilateral involvement is clearly stated. Check documentation if laterality is unclear.
Do not use for
Do not use this code for unspecified conjunctivitis, infectious conjunctivitis, or non-atopic allergic eye disease. If the record does not confirm bilateral disease or atopic origin, check documentation.
Coding tip
Verify both laterality and the atopic qualifier before assigning H10.13.