H18.46 - Peripheral corneal degeneration H18.4 - Corneal degeneration H18.46 - Peripheral corneal degeneration
H18.461 - Peripheral corneal degeneration, right eye H18.462 - Peripheral corneal degeneration, left eye H18.463 - Peripheral corneal degeneration, bilateral H18.469 - Peripheral corneal degeneration, unspecified eye