ICD-10 Code H11.02 – Central pterygium of eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.02 – Central pterygium of eye
What it is
Central pterygium of the eye is a fibrovascular growth of conjunctival tissue that extends onto the cornea in the central visual axis. It is coded when documentation specifically identifies the lesion as central.
Clinical signs
Typical findings include a visible triangular conjunctival growth crossing the limbus and advancing toward the cornea. Clinical features vary; refer to documentation for laterality, extent, and any visual impact.
When to use this code
Use H11.02 when the provider documents a pterygium centered on the visual axis or otherwise identifies it as central. Apply it for confirmed diagnosis in office, ophthalmology, or surgical notes. Check documentation if the record only says “pterygium” without location.
Do not use for
Do not use this code for pinguecula, peripheral pterygium, or unspecified conjunctival growths. If the chart does not clearly state central involvement, check documentation.
Coding tip
Confirm the exact anatomic location in the ophthalmology note before assigning H11.02.