ICD-10 Code H18.013 – Anterior corneal pigmentations, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.013 – Anterior corneal pigmentations, bilateral
What it is
This code identifies pigment deposits on the front surface of both corneas. Use it when documentation specifically states bilateral anterior corneal pigmentation.
Clinical signs
Findings may include visible pigmentation on slit-lamp exam and corneal surface discoloration. Clinical features vary; refer to documentation.
When to use this code
Use H18.013 when the provider documents anterior corneal pigmentations in both eyes as a diagnosis or exam finding. It is appropriate when the bilateral location is clear in the record. Check documentation if laterality is not specified.
Do not use for
Do not use this code for corneal pigmentation limited to one eye or for pigment changes in other eye structures. If the note describes a different corneal disorder, select the more specific diagnosis.
Coding tip
Confirm bilateral laterality and the exact corneal location before assigning H18.013.