ICD-10 Code H18.329 – Folds in Descemet’s membrane, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.329 – Folds in Descemet’s membrane, unspecified eye
What it is
H18.329 identifies folds in Descemet’s membrane affecting an unspecified eye. Use it for documentation of this corneal finding when the record does not name the right or left eye.
Clinical signs
This finding is usually noted on slit-lamp examination as visible corneal folds or striae in Descemet’s membrane. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents folds in Descemet’s membrane but does not specify laterality. It may appear as an isolated corneal finding or as part of another documented eye disorder. Code only what is stated in the record.
Do not use for
Do not use it if the note identifies a specific eye and a laterality-specific code is available. Do not assume the cause or add a different corneal diagnosis without documentation.
Coding tip
If laterality is missing, keep the code unspecified and query only when the record supports clarification.