ICD-10 Code H11.002 – Unspecified pterygium of left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.002 – Unspecified pterygium of left eye
What it is
This code identifies a pterygium on the left eye when the record does not specify whether it is stationary, progressive, or otherwise characterized. It is a conjunctival growth that extends toward the cornea.
Clinical signs
Common findings include a triangular fibrovascular lesion on the conjunctiva, usually arising from the nasal side and moving toward the cornea. Clinical features vary; refer to documentation.
When to use this code
Use H11.002 when the provider documents pterygium of the left eye without further detail. It also fits when the note confirms the lesion is present but does not state laterality beyond the left eye or describe its type. Check documentation if the chart mentions both eyes or a more specific form.
Do not use for
Do not use this code for pterygium of the right eye or bilateral disease. Do not assign it when the record describes another conjunctival lesion or gives a more specific pterygium code.
Coding tip
Confirm laterality and specificity in the ophthalmology note before assigning H11.002.