ICD-10 Code H17.822 – Peripheral opacity of cornea, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H17.822 – Peripheral opacity of cornea, left eye
What it is
This code identifies a scar, haze, or other opaque change at the peripheral cornea of the left eye. It indicates reduced corneal clarity away from the central visual axis.
Clinical signs
Clinical findings may include a visible peripheral corneal opacity on slit-lamp exam, with or without visual symptoms. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents a peripheral corneal opacity specifically in the left eye. It is appropriate for old scarring, residual opacity, or other noncentral corneal clouding when laterality is clear. If the note does not specify the eye or location, check documentation.
Do not use for
Do not use this code for central corneal opacity, corneal edema, or active keratitis unless the record also documents a peripheral opacity. Do not assume laterality.
Coding tip
Confirm both the eye and peripheral location in the ophthalmology note before assigning H17.822.