ICD-10 Code H18.453 – Nodular corneal degeneration, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.453 – Nodular corneal degeneration, bilateral
What it is
H18.453 identifies nodular degeneration affecting both corneas. It is used when the record documents bilateral corneal nodules or nodular corneal degeneration without a different, more specific diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe visible corneal nodules, surface irregularity, and reduced corneal clarity in both eyes.
When to use this code
Use H18.453 when the ophthalmology note clearly states bilateral nodular corneal degeneration. Code it from the provider’s documented diagnosis, exam findings, or assessment when both corneas are involved.
If the note only mentions corneal degeneration without laterality, or if another corneal disorder is specified, check documentation before assigning this code.
Do not use for
Do not use this code for unilateral disease, unspecified corneal degeneration, or a different corneal dystrophy. Check documentation if the chart does not clearly confirm bilateral nodular involvement.
Coding tip
Confirm laterality in the assessment or problem list; H18.453 is specific to bilateral disease.