ICD-10 Code H15.843 – Scleral ectasia, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H15.843 – Scleral ectasia, bilateral
What it is
Scleral ectasia means thinning and outward bulging of the sclera, the white outer coat of the eye. Bilateral indicates the condition affects both eyes.
Clinical signs
Findings may include visible scleral thinning or bluish discoloration, with localized protrusion of the globe. Clinical features vary; refer to documentation.
When to use this code
Use H15.843 when the provider documents scleral ectasia in both eyes, whether noted on exam or confirmed by ophthalmic evaluation. Code only when bilateral involvement is clearly stated in the record. If the note describes another scleral disorder or laterality is unclear, check documentation.
Do not use for
Do not use this code for unilateral scleral ectasia or for nonspecific scleral thinning without ectasia. If the diagnosis is uncertain or documented differently, check documentation.
Coding tip
Always verify laterality in the assessment or impression before assigning H15.843.