ICD-10 Code H17.10 – Central corneal opacity, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.10 – Central corneal opacity, unspecified eye
What it is
This code identifies a central opacity in the cornea, the clear front part of the eye, when the affected eye is not specified. It indicates a documented corneal scar or clouding that involves the visual axis.
Clinical signs
Findings may include reduced visual clarity, a visible corneal haze or scar, and abnormal corneal transparency on exam. Clinical features vary; refer to documentation.
When to use this code
Use H17.10 when the provider documents a central corneal opacity but does not identify the right or left eye. It is appropriate for corneal scarring or clouding described as central and affecting the cornea. Check documentation if the record specifies laterality or a different corneal disorder.
Do not use for
Do not use this code for peripheral corneal opacities, corneal edema, or non-corneal eye lesions. If the chart names the eye, choose the laterality-specific code instead.
Coding tip
Always confirm both the corneal location and whether the eye is unspecified before assigning H17.10.