ICD-10 Code H11.04 – Peripheral pterygium of eye, stationary (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.04 – Peripheral pterygium of eye, stationary
What it is
H11.04 identifies a peripheral pterygium that is stationary, meaning a fibrovascular conjunctival growth extends toward the cornea but is not actively progressing. Use it when documentation specifically states the lesion is peripheral and stable.
Clinical signs
Typical findings include a triangular, wedge-shaped conjunctival growth near the limbus with possible corneal encroachment. Clinical features vary; refer to documentation for whether it is stationary, inflamed, or visually significant.
When to use this code
Use this code when the record documents a peripheral pterygium and indicates it is stationary or unchanged. It may be supported by an eye exam noting a stable lesion without progression. If laterality or activity is unclear, check documentation.
Do not use for
Do not use it for a progressive, recurrent, or unspecified pterygium, or for other conjunctival lesions. Do not assume “pterygium” alone means stationary; confirm the descriptor in the chart.
Coding tip
Verify the provider’s exact wording for location and activity before assigning H11.04.