T86: Failure and rejection of transplanted organs and tissues

T86.0: Bone-marrow transplant rejection

Bone marrow transplant rejection, represented by the ICD-10 code T86.0, is a serious medical condition that occurs when the body's immune system treats the transplanted bone marrow as foreign tissue and actively works to destroy it. This rejection can occur immediately after the transplant or develop some time later. The symptoms often include fatigue, fever, and difficulty in breathing along with skin rashes or changes in skin color. Damage to the transplanted bone marrow leads to impaired production of blood cells, potentially affecting all body systems. The condition often evolves progressively, with an increase in severity of symptoms over time. In severe cases, it can be life-threatening. Bone marrow transplant rejection is typically confirmed through blood tests and imaging studies. It requires immediate and comprehensive medical intervention.