ICD-10 Code H11.019 – Amyloid pterygium of unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.019 – Amyloid pterygium of unspecified eye
What it is
This code identifies amyloid pterygium affecting an eye when the side is not documented. It refers to a pterygium-like conjunctival growth associated with amyloid deposition.
Clinical signs
Clinical features vary; refer to documentation. You may see a conjunctival growth extending toward the cornea, with a pterygium appearance and possible irritation or redness.
When to use this code
Use H11.019 when the record specifically documents amyloid pterygium and does not state right or left eye. This is appropriate for outpatient, specialist, or problem-list documentation that names the condition clearly. If laterality is recorded elsewhere, code the specified eye instead.
Do not use for
Do not use this code for ordinary pterygium, pinguecula, or other conjunctival lesions without amyloid involvement. Check documentation if the eye side is specified or if the diagnosis is uncertain.
Coding tip
Always confirm both the amyloid nature and the unspecified laterality before assigning H11.019.