D84.82 Immunodeficiency due to drugs and external causesNon-billable header with 2 child codes.
D72 Other disorders of white blood cells ("immunity disorders (D80-D89)")D84 Other immunodeficienciesD84.0 Lymphocyte function antigen-1 [LFA-1] defectD84.1 Defects in the complement systemD84.8 Other specified immunodeficienciesD84.81 Immunodeficiency due to conditions classified elsewhereD84.82 Immunodeficiency due to drugs and external causes (this code)D84.821 Immunodeficiency due to drugsD84.822 Immunodeficiency due to external causesD84.89 Other immunodeficienciesD84.9 Immunodeficiency, unspecified