ICD-10 Code H11.819 – Pseudopterygium of conjunctiva, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.819 – Pseudopterygium of conjunctiva, unspecified eye
What it is
This code identifies a pseudopterygium, an abnormal conjunctival adhesion to the cornea or nearby ocular surface. Use it when the chart documents pseudopterygium but does not specify the eye.
Clinical signs
Findings may include a conjunctival fold or scar-like tissue attached to the cornea, often after inflammation, trauma, or surgery. Clinical features vary; refer to documentation.
When to use this code
Use H11.819 when the provider diagnoses pseudopterygium and records no laterality. It also fits follow-up visits when the condition remains active or is still being evaluated. If the note only says “conjunctival lesion,” check documentation before coding.
Do not use for
Do not use this code for true pterygium, conjunctival scarring without pseudopterygium, or unspecified eye irritation. Check documentation if the record does not clearly confirm pseudopterygium.
Coding tip
Verify whether the eye is documented; if laterality is known, choose the more specific code.