ICD-10 Code H16.119 – Macular keratitis, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.119 – Macular keratitis, unspecified eye
What it is
H16.119 identifies macular keratitis when the affected eye is not specified. It is used for a corneal inflammatory condition described as macular keratitis in standard coding references.
Clinical signs
Clinical features vary; refer to documentation. You may see corneal inflammation noted on examination, with eye discomfort, redness, tearing, or visual disturbance depending on severity and location.
When to use this code
Use this code when the record specifically documents macular keratitis and does not identify the right or left eye. It is appropriate when the provider’s diagnosis is confirmed, but laterality is missing or not stated. If the note gives a different corneal disorder, code that condition instead.
Do not use for
Do not use this code for keratitis with documented laterality or for other corneal diseases that are named differently. Check documentation if the record only says “keratitis” without the macular type.
Coding tip
Verify that both the specific diagnosis and unspecified eye are supported in the chart before assigning H16.119.