ICD-10 Code H16.291 – Other keratoconjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.291 – Other keratoconjunctivitis, right eye
What it is
This code identifies keratoconjunctivitis affecting the right eye when the condition does not fit a more specific category. It reflects inflammation involving both the cornea and conjunctiva.
Clinical signs
Typical findings include eye redness, irritation, tearing, foreign-body sensation, and light sensitivity. Clinical features vary; refer to documentation for the specific cause and exam findings.
When to use this code
Use H16.291 when the record documents keratoconjunctivitis in the right eye and the provider does not name a more specific type. It is also appropriate when laterality is clearly right eye and the diagnosis remains nonspecific. Check documentation if the note only says conjunctivitis or keratitis.
Do not use for
Do not use this code for left eye or bilateral disease. Do not assign it when a more specific keratoconjunctivitis diagnosis is documented.
Coding tip
Confirm both the diagnosis wording and laterality in the note before coding H16.291.