ICD-10 Code H11.032 – Double pterygium of left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.032 – Double pterygium of left eye
What it is
H11.032 identifies double pterygium affecting the left eye. This means two pterygium growths are present on the conjunctiva and extend toward the cornea.
Clinical signs
Typical findings include a visible fibrovascular conjunctival growth, usually triangular, with possible irritation, redness, or foreign-body sensation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states double pterygium of the left eye. It also fits ophthalmology notes that document two separate pterygia in the left eye, even if symptoms are not detailed.
Confirm laterality and that the condition is on the left side only. If the documentation says pterygium without specifying double or left eye, check documentation before assigning H11.032.
Do not use for
Do not use this code for a single pterygium, right eye disease, or bilateral involvement. It is also incorrect when the note only mentions conjunctival irritation without a documented pterygium.
Coding tip
Always verify both the “double” descriptor and left-eye laterality before coding H11.032.