ICD-10 Code H15.84 – Scleral ectasia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H15.84 – Scleral ectasia
What it is
Scleral ectasia means abnormal thinning and outward bulging of the sclera, the white outer coat of the eye. Use this code when the record specifically identifies scleral ectasia.
Clinical signs
Clinical features vary; refer to documentation. Findings may include visible scleral thinning, localized bulging, or an area described as ectatic on eye examination or imaging.
When to use this code
Use H15.84 when the ophthalmology note documents scleral ectasia as the diagnosis, even if the cause is not stated. It is appropriate for confirmed structural scleral thinning with ectatic change. Check documentation if the chart uses broader terms such as scleral disorder or ocular thinning.
Do not use for
Do not use this code for corneal ectasia, staphyloma, or nonspecific scleral inflammation without ectasia. If the note does not clearly identify scleral ectasia, check documentation.
Coding tip
Code the most specific eye finding documented and verify laterality or associated conditions only if the record supports them.