ICD-10 Code H18.321 – Folds in Descemet’s membrane, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.321 – Folds in Descemet’s membrane, right eye
What it is
H18.321 identifies folds in Descemet’s membrane affecting the right eye. This corneal finding means the thin inner layer of the cornea has visible wrinkling or folding.
Clinical signs
Clinical features vary; refer to documentation. Findings may be noted on slit-lamp examination as corneal folds, sometimes with blurred vision or corneal edema if present.
When to use this code
Use this code when the provider documents folds in Descemet’s membrane in the right eye and no more specific diagnosis is recorded. It is appropriate for a documented corneal finding, not a general complaint alone. Check documentation if laterality is unclear.
Do not use for
Do not use this code for left-eye or bilateral findings, or when the record only describes nonspecific corneal edema without Descemet’s membrane folds. Check documentation for the exact diagnosis.
Coding tip
Verify laterality in the ophthalmology note before assigning H18.321.