Peripheral opacity of cornea, bilateral

This code signifies the presence of an abnormal, non-transparent area located at the outer edges of the cornea in both eyes. This opacity can be due to various causes, including lipid deposition, scarring, or degenerative changes, affecting the clarity of the peripheral vision.

Apply this code when documentation explicitly states a peripheral corneal opacity affecting both eyes. This diagnosis is typically made during an ophthalmological examination, often noted in slit lamp findings or detailed anterior segment descriptions.

• Ensure the documentation specifies "peripheral" and "bilateral" to accurately assign this code.
• Distinguish from central corneal opacities (H17.0-) or unspecified locations (H17.89-).
• Code any underlying cause of the opacity, such as corneal dystrophy or lipid metabolism disorders, as an additional diagnosis.