Common variable immunodeficiency
Some patients may develop an autoimmune disorder, most commonly either idiopathic thrombocytopenia purpura or autoimmune hemolytic anemia. Lymphadenopathy, splenomegaly, and cancers such as lymphoma and gastric cancer may occur. Most cases are idiopathic; a minority are genetic.
D83.9 – Common variable immunodeficiency, unspecified
23238000 – Common variable agammaglobulinemia