ICD-10 Code H16.211 – Exposure keratoconjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.211 – Exposure keratoconjunctivitis, right eye
What it is
H16.211 identifies exposure keratoconjunctivitis affecting the right eye. Use it when the cornea and conjunctiva are irritated because the eye is not adequately protected or closed.
Clinical signs
Typical findings include redness, irritation, foreign-body sensation, tearing, and surface dryness of the right eye. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents exposure keratoconjunctivitis in the right eye, including cases related to incomplete eyelid closure, facial nerve weakness, or other exposure causes. Confirm the laterality is right eye before assigning the code. If the record is unclear, check documentation.
Do not use for
Do not use H16.211 for unspecified eye involvement or for keratitis without exposure-related documentation. Do not assume laterality from symptoms alone.
Coding tip
Always verify both the exposure cause and right-eye laterality in the chart before coding.