ICD-10 Code H16.111 – Macular keratitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.111 – Macular keratitis, right eye
What it is
H16.111 identifies macular keratitis affecting the right eye. Use it when documentation specifies this corneal inflammatory condition in the right eye and not a more general keratitis diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Typical corneal findings may include localized inflammation, eye discomfort, redness, tearing, light sensitivity, or reduced vision when the right eye is involved.
When to use this code
Use H16.111 when the clinician documents macular keratitis in the right eye, or when the record clearly links keratitis to the right cornea. You should code it only when laterality is stated and the diagnosis is confirmed in the note.
Do not use for
Do not use this code for unspecified keratitis, left eye disease, or bilateral involvement. If the chart says only “keratitis” without location or laterality, check documentation.
Coding tip
Always verify the eye and the exact keratitis type in the assessment, because laterality drives the final code selection.