ICD-10 Code H11.06 – Recurrent pterygium of eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.06 – Recurrent pterygium of eye
What it is
H11.06 identifies a pterygium that has returned after prior removal or treatment. It refers to fibrovascular tissue growing onto the conjunctiva and cornea again in the same eye.
Clinical signs
Typical findings include a visible triangular conjunctival growth extending toward the cornea, often with redness or irritation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states recurrent pterygium, including recurrence after surgery or other prior intervention. Code it when the clinician documents the condition as affecting the eye and does not describe it as a different conjunctival disorder. Check documentation if laterality or recurrence details are unclear.
Do not use for
Do not use H11.06 for a first-time pterygium or for nonspecific conjunctival irritation without recurrence. Do not assume recurrence unless the provider documents it.
Coding tip
Confirm the chart explicitly says “recurrent” and verify any laterality details before assigning the code.