ICD-10 Code H16.079 – Perforated corneal ulcer, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.079 – Perforated corneal ulcer, unspecified eye
What it is
This code identifies a corneal ulcer that has progressed to a perforation, meaning the cornea has developed a full-thickness defect. Use it when the affected eye is not specified in the documentation.
Clinical signs
Typical findings include a corneal ulcer with signs of rupture or leakage, often with severe pain, redness, tearing, and reduced vision. Clinical features vary; refer to documentation.
When to use this code
Use H16.079 when the provider documents a perforated corneal ulcer but does not identify the right or left eye. It may also apply when the record confirms corneal perforation from an ulcerative process and laterality remains unspecified. Check documentation if the note describes another corneal disorder or trauma instead.
Do not use for
Do not use this code for nonperforated corneal ulcers, corneal abrasions, or traumatic corneal injuries. If the eye is documented, choose the laterality-specific code instead.
Coding tip
Confirm both perforation and laterality in the chart before assigning H16.079.