ICD-10-CM > D50-D89 > D80-D89 > D89 > D89.8 > D89.81 D89.81 Graft-versus-host disease Non-Billable/Non-Specific Code First underlying cause, such as:complications of transplanted organs and tissue (T86.-)complications of blood transfusion (T80.89) Use Additional code to identify associated manifestations, such as:desquamative dermatitis (L30.8)diarrhea (R19.7)elevated bilirubin (R17)hair loss (L65.9) Codes D89.810Acute graft-versus-host diseaseD89.811Chronic graft-versus-host diseaseD89.812Acute on chronic graft-versus-host diseaseD89.813Graft-versus-host disease, unspecified