ICD-10 Code H11.039 – Double pterygium of unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.039 – Double pterygium of unspecified eye
What it is
H11.039 identifies a double pterygium affecting an unspecified eye. It means two fibrovascular conjunctival growths extend toward the cornea, but the record does not specify right or left eye.
Clinical signs
Typical findings include visible conjunctival overgrowths, redness, irritation, tearing, or a foreign-body sensation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents double pterygium and does not identify the eye involved. It also fits cases where the chart confirms the condition but laterality is missing or cannot be determined. Check documentation if the note is unclear.
Do not use for
Do not use H11.039 for a single pterygium, pinguecula, or other conjunctival lesions. If the record specifies the right or left eye, use the laterality-specific code instead.
Coding tip
Confirm both the double lesion and the unspecified eye before assigning H11.039.