ICD-10 Code H10.1 – Acute atopic conjunctivitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.1 – Acute atopic conjunctivitis
What it is
H10.1 identifies acute atopic conjunctivitis, an allergic inflammation of the conjunctiva linked to atopic disease. Use it when the record specifically documents this diagnosis.
Clinical signs
Typical findings include red, itchy eyes, tearing, and conjunctival swelling. Clinical features vary; refer to documentation.
When to use this code
Use H10.1 when the provider documents acute atopic conjunctivitis, including cases noted alongside eczema, allergic rhinitis, or other atopic history. It may also fit when the chart clearly states allergic conjunctivitis with an atopic pattern. Check documentation if the type is not explicit.
Do not use for
Do not use this code for infectious conjunctivitis, chemical irritation, or unspecified allergic conjunctivitis unless atopic conjunctivitis is documented. Do not assume the diagnosis from eye redness alone.
Coding tip
Code the exact conjunctivitis type stated by the clinician; if “atopic” is not documented, verify before assigning H10.1.