ICD-10 Code H11.812 – Pseudopterygium of conjunctiva, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.812 – Pseudopterygium of conjunctiva, left eye
What it is
Pseudopterygium is an abnormal adhesion of conjunctiva to the cornea, usually from prior inflammation, trauma, or scarring. This code specifies the left eye.
Clinical signs
Typical findings include a localized conjunctival fold or membrane attached to the corneal surface, often with a history of prior ocular irritation or injury. Clinical features vary; refer to documentation.
When to use this code
Use H11.812 when the provider documents pseudopterygium of the conjunctiva in the left eye. It is appropriate when the note clearly identifies the left eye and the diagnosis is not recorded as true pterygium. If the record only says “conjunctival scarring” or “corneal adhesion,” check documentation.
Do not use for
Do not use this code for pterygium, unspecified conjunctival lesions, or nonspecific eye irritation. Check documentation when the diagnosis is uncertain or the laterality is not stated.
Coding tip
Verify laterality carefully, since the right and left eye have separate ICD-10-CM codes.