ICD-10 Code H16.333 – Sclerosing keratitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.333 – Sclerosing keratitis, bilateral
What it is
H16.333 identifies sclerosing keratitis affecting both eyes. It refers to corneal inflammation with progressive scarring or sclerosis, which can reduce corneal clarity and vision.
Clinical signs
Findings may include bilateral corneal haze, stromal scarring, and reduced transparency. Clinical features vary; refer to documentation for the exact corneal changes and whether the process is active or chronic.
When to use this code
Use this code when the provider documents sclerosing keratitis in both eyes. It is appropriate when the record clearly states bilateral involvement, even if the note also describes corneal opacity or scarring. If laterality is unclear, check documentation before coding.
Do not use for
Do not use this code for unilateral sclerosing keratitis or for nonspecific keratitis without sclerosis. Do not assign it when the chart only mentions corneal scar or opacity without a documented diagnosis of sclerosing keratitis.
Coding tip
Always confirm bilateral laterality in the ophthalmology note before assigning H16.333.