disease has basis in dysfunction of disease has location FCGR2C platelet primary thrombocytopenia autoimmune thrombocytopenic purpura AITP An autoimmune disorder in which the number of circulating platelets is reduced due to their antibody-mediated destruction. ITP is a diagnosis of exclusion and is heterogeneous in origin. COHD:4120621 DOID:8924 EFO:0007160 GARD:0005194 ICD10:D69.3 ICD9:287.31 ITP Ideopath thrombocytopenic pur MONDO:0008558 MedDRA:10021245 NCIT:C3446 OMIM:188030 Orphanet:3002 autoimmune thrombocytopenic purpura idiopathic purpura idiopathic thrombocytopenia idiopathic thrombocytopenia purpura idiopathic thrombocytopenic purpura immune thrombocytopenia immune thrombocytopenic purpura primary thrombocytopenic purpura thrombocytopenic purpura autoimmune thrombocytopenic purpura, autoimmune werlhof's disease autoimmune thrombocytopenia thrombocytopenic purpura