ICD-10 Code H11.159 – Pinguecula, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H11.159 – Pinguecula, unspecified eye
What it is
H11.159 identifies a pinguecula in an unspecified eye. This is a benign conjunctival degeneration, usually a small yellowish raised lesion on the white of the eye near the cornea.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the chart notes a visible conjunctival bump, mild irritation, redness, dryness, or a foreign-body sensation.
When to use this code
Use this code when the provider documents pinguecula but does not specify whether it affects the right or left eye. It also fits routine outpatient or eye exam records describing an incidental or symptomatic pinguecula without laterality.
If the note identifies only the condition and eye laterality is missing, this unspecified-eye code is appropriate. Check documentation before coding a more specific laterality code.
Do not use for
Do not use this code for pterygium, conjunctivitis, or other conjunctival growths. If the provider specifies the right or left eye, do not use the unspecified-eye code.
Coding tip
Review the ophthalmology note for laterality; unspecified-eye coding should be a documentation-driven choice, not a default.