ICD-10 Code H18.323 – Folds in Descemet’s membrane, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.323 – Folds in Descemet’s membrane, bilateral
What it is
This code identifies folds in Descemet’s membrane in both eyes, a corneal finding seen on eye examination. It describes the location and laterality, not the cause.
Clinical signs
Documentation may note corneal folds or striae visible on slit-lamp exam. Clinical features vary; refer to documentation for the underlying condition or associated ocular findings.
When to use this code
Use H18.323 when the provider documents bilateral folds in Descemet’s membrane as the diagnosed finding. You may also use it when the corneal folds are the specific reason for ophthalmic evaluation or follow-up.
Assign it only when both eyes are involved and the record supports that laterality. If the note lists a different corneal disorder as the primary diagnosis, code that condition instead and verify whether this finding is additionally reported.
Do not use for
Do not use this code for unilateral folds, generalized corneal edema, or other corneal abnormalities without documented Descemet’s membrane folds. Check documentation if the laterality is unclear.
Coding tip
Confirm the provider’s laterality wording; H18.323 is specific to bilateral involvement.