Bone marrow transplant failure

This diagnosis code signifies that a patient's bone marrow transplant has failed to engraft or sustain hematopoietic function. It indicates a lack of successful reconstitution of the bone marrow, leading to persistent cytopenias or a return of the underlying disease.

Apply this code when documentation explicitly states bone marrow transplant failure, such as primary graft failure, secondary graft failure, or rejection of the transplanted marrow. This would be used in cases where the patient's bone marrow is not producing sufficient blood cells post-transplant.

• Ensure documentation clearly specifies "transplant failure" rather than complications like graft-versus-host disease (GVHD) or infection, which have separate codes.
• This code is for the failure of the transplant itself, not for complications arising from a successful transplant.
• Consider sequencing this code as a primary diagnosis if the transplant failure is the main reason for the encounter, or as a secondary diagnosis if it's a significant co-morbidity.