Malignant neoplasm associated with transplant organ

This code signifies a malignant neoplasm that has developed in a patient who has undergone an organ transplant. It specifically indicates a malignancy that is considered to be associated with or a consequence of the transplanted organ or the immunosuppressive therapy required for transplantation. This condition is often referred to as post-transplant malignancy.

Use this code when documentation clearly states a diagnosis of a malignant neoplasm occurring in a transplant recipient, and the neoplasm is directly linked to the transplant status. This applies to both solid organ and hematopoietic stem cell transplant recipients. Documentation should specify the type of malignancy and the history of organ transplantation.

• Always code the specific type of malignant neoplasm first, followed by this code to indicate its association with a transplant.
• Do not use this code for malignancies that existed prior to transplantation or are clearly unrelated to the transplant or immunosuppression.
• Ensure documentation specifies the transplant organ (e.g., kidney, liver, heart) if known, as this may influence further specificity in other code sets.