ICD-10 Code H17.813 – Minor opacity of cornea, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.813 – Minor opacity of cornea, bilateral
What it is
This code identifies a mild clouding or scar-like opacity in both corneas. It indicates reduced corneal clarity, but not necessarily severe visual loss.
Clinical signs
Findings may include visible corneal haze, faint scarring, or small opacities on slit-lamp exam. Clinical features vary; refer to documentation.
When to use this code
Use H17.813 when the provider documents minor opacity affecting both corneas. It fits bilateral corneal haze or residual opacity described as mild or minor. Code only when the record clearly supports corneal involvement and laterality.
Do not use for
Do not use this code for corneal edema, active infection, or unspecified corneal opacity. Check documentation if the record does not clearly state bilateral minor opacity.
Coding tip
Confirm both laterality and severity in the note before assigning H17.813.