ICD-10 Code H16.073 – Perforated corneal ulcer, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.073 – Perforated corneal ulcer, bilateral
What it is
This code identifies a corneal ulcer in both eyes that has progressed to perforation. It means the corneal surface has broken through, creating a serious structural defect.
Clinical signs
Typical findings include severe eye pain, redness, tearing, photophobia, and reduced vision. Clinical features vary; refer to documentation, especially for evidence of corneal thinning or full-thickness perforation in both eyes.
When to use this code
Use H16.073 when documentation states bilateral perforated corneal ulcer or equivalent wording. Code it when both corneas are described as ulcerated and perforated, not merely inflamed or superficially ulcerated.
If the record mentions only one eye, do not select this bilateral code. Check documentation for laterality and whether perforation is confirmed.
Do not use for
Do not use this code for nonperforated corneal ulcers, corneal abrasion, or keratitis without ulceration. Check documentation if the note describes only one eye or an unspecified corneal lesion.
Coding tip
Confirm both laterality and perforation in the provider note before assigning H16.073.