Pseudopterygium of conjunctiva, left eye

This code describes a pseudopterygium affecting the conjunctiva of the left eye. A pseudopterygium is a fold of conjunctiva that adheres to the cornea, typically at the limbus, but unlike a true pterygium, it is not progressive and usually results from prior inflammation or trauma.

Use this code when documentation specifies a diagnosis of pseudopterygium located in the conjunctiva of the left eye. This condition is often noted during routine ophthalmic examinations or when a patient presents with irritation or foreign body sensation. Documentation should clearly indicate "pseudopterygium" and specify the "left eye."

• Differentiate carefully between pseudopterygium and true pterygium (H11.0-), as they are distinct clinical entities with different etiologies and management.
• Ensure the laterality is correctly identified; codes exist for the right eye (H11.811) and bilateral involvement (H11.813).
• Look for documentation of previous ocular inflammation, trauma, or surgery, which are common predisposing factors for pseudopterygium.