ICD-10 Code H10.223 – Pseudomembranous conjunctivitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H10.223 – Pseudomembranous conjunctivitis, bilateral
What it is
This code identifies pseudomembranous conjunctivitis affecting both eyes. It means the conjunctiva has a membrane-like coating, usually from inflammation, and the condition is documented as bilateral.
Clinical signs
Findings may include conjunctival redness, irritation, tearing, and a visible pseudomembrane on the eye surface. Clinical features vary; refer to documentation.
When to use this code
Use H10.223 when the provider documents pseudomembranous conjunctivitis in both eyes. Apply it when the bilateral involvement is clearly stated in the diagnosis or assessment, even if the cause is not specified.
If the record only says conjunctivitis without the pseudomembranous type or laterality, you should not assign this code. Check documentation for whether both eyes are affected.
Do not use for
Do not use this code for unilateral pseudomembranous conjunctivitis or for nonspecific conjunctivitis. Check documentation if the record describes a different conjunctival disorder.
Coding tip
Always confirm both the pseudomembranous description and bilateral laterality before coding.