primary immunodeficiency disease A disorder in which the immune system is unable to mount an adequate immune response. DOID:612 ICD10:D84.9 ICD9:279.3 KEGG:05340 MESH:D007153 MONDO:0003778 Orphanet:101997 SCTID:58606001 UMLS:C0021051 UMLS:C0398686 antibody deficiency syndrome antibody deficiency syndromes deficiency syndrome, antibody deficiency syndrome, immunologic deficiency syndrome, immunological deficiency syndromes, antibody deficiency syndromes, immunologic deficiency syndromes, immunological hypoimmunity immune deficiency disorder immunodeficiency syndrome immunologic deficiency syndrome immunological deficiency syndrome immunological deficiency syndromes primary immunodeficiency syndrome, antibody deficiency syndrome, immunologic deficiency syndrome, immunological deficiency syndromes, antibody deficiency syndromes, immunologic deficiency syndromes, immunological deficiency immune system disease immune deficiency disease