D89.811

HCC Category Mapping

What This Code Means

A long-term complication of bone marrow or stem cell transplant where the donor's immune cells continue to attack the recipient's body tissues months to years after transplant.

Coding Tips

• •Document the onset (typically after 100 days post-transplant) and specific organs involved
• •Differentiate from acute GVHD by timing and clinical presentation

Clinical Significance

Chronic graft-versus-host disease is a multisystem fibroinflammatory and immune-mediated condition that typically develops more than 100 days after allogeneic stem cell transplantation, though it can occur earlier. It affects the skin (sclerosis, lichen planus-like changes), eyes (sicca syndrome), oral mucosa, lungs (bronchiolitis obliterans), liver, and gastrointestinal tract. It is the leading cause of late non-relapse mortality and long-term morbidity in transplant survivors.

Documentation Requirements

• ✓Documentation should specify chronic graft-versus-host disease with the organ systems affected, NIH consensus severity grading (mild, moderate, severe), and whether it is limited or extensive.
• ✓The relationship to prior stem cell transplant must be established.
• ✓Current immunosuppressive regimen, functional status, and any organ-specific complications (pulmonary function decline, ocular damage) should be recorded.

Commonly Confused Codes