ICD-10 Code H16.101 – Unspecified superficial keratitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.101 – Unspecified superficial keratitis, right eye
What it is
This code identifies superficial inflammation or irritation of the cornea in the right eye when the exact cause is not documented. It tells you the condition is limited to the corneal surface and is not otherwise specified.
Clinical signs
Typical findings may include eye redness, discomfort, tearing, light sensitivity, or a foreign-body sensation. Clinical features vary; refer to documentation.
When to use this code
Use H16.101 when the provider documents superficial keratitis in the right eye but does not name a specific type, cause, or organism. It also fits cases where the record confirms corneal surface inflammation without further detail. Check documentation if laterality or etiology is clarified.
Do not use for
Do not use this code when the chart specifies a different keratitis type, a bilateral condition, or another corneal disorder. Do not assign it if documentation supports a more specific diagnosis.
Coding tip
Verify right-eye laterality and whether the note gives a more specific keratitis diagnosis before selecting this unspecified code.