Band keratopathy, bilateral

This code represents band keratopathy affecting both eyes. Band keratopathy is a degenerative corneal condition characterized by a horizontal band of calcium deposits in the superficial cornea, typically in the interpalpebral fissure. It can lead to decreased vision and ocular irritation.

Use this code when documentation clearly indicates the presence of band keratopathy in both the right and left eyes. This diagnosis is often supported by slit-lamp examination findings describing the characteristic calcific deposits. It is frequently associated with chronic ocular inflammation, hypercalcemia, or inherited metabolic disorders.

• Ensure documentation specifies "bilateral" involvement; otherwise, use the appropriate unilateral code (H18.421 or H18.422).
• Do not confuse with other corneal degenerations like corneal dystrophy or keratoconus.
• Code any underlying systemic conditions contributing to band keratopathy (e.g., hypercalcemia, chronic uveitis) as secondary diagnoses.