Corneal transplant rejection, unspecified eye

This code signifies the body's immune response against a transplanted cornea, leading to its dysfunction or failure. It indicates an inflammatory process targeting the donor tissue, which can compromise vision and necessitate further intervention. The "unspecified eye" designation means the laterality of the affected eye is not documented.

Apply this code when documentation clearly indicates a corneal transplant rejection without specifying whether it's the right or left eye. This would be appropriate for follow-up visits where rejection is confirmed, or during an acute episode of rejection where laterality is not yet determined or recorded.

• Ensure the medical record explicitly states "corneal transplant rejection" and does not specify laterality.
• If laterality (right or left eye) is documented, use the more specific codes T86.8401 (right) or T86.8402 (left).
• Do not use this code for other complications of corneal transplants, such as infection or graft failure without rejection.