Band keratopathy, unspecified eye

This code describes a degenerative corneal condition characterized by a horizontal band-like opacity in the superficial cornea, typically composed of calcium deposits. It often begins in the periphery and progresses centrally, potentially impairing vision.

Apply this code when documentation specifies band keratopathy without laterality or when the affected eye is not specified. Supporting documentation would include ophthalmological exam findings noting the characteristic corneal deposits.

• Do not use this code if the laterality (right or left eye) is documented; instead, use the more specific codes H18.421 or H18.422.
• Consider if an underlying systemic condition (e.g., hypercalcemia, chronic renal failure) is also documented, as this may require additional coding.
• This code is for the diagnosis of band keratopathy itself, not for any associated symptoms like vision impairment, which would be coded separately.