Purpura and other hemorrhagic conditions
Allergic purpura
Qualitative platelet defects
- disorders caused by abnormalities in platelet count or function.
- qualitative disorder of the blood platelets, due mainly to deficiency of platelet factor 3.
- platelet abnormality characterized by defective clot formation, impaired aggregation, and prolonged bleeding time; other manifestations include nosebleeds, inappropriate bruising, and excessive bleeding.
Other nonthrombocytopenic purpuras
- small hemorrhage in the skin, mucous membrane or serosal surface, or a group of hemorrhagic diseases characterized by purpuric lesions.
Primary thrombocytopenia
Primary thrombocytopenia, unspecified
Immune thrombocyopenic purpura
- 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.
Evans' syndrome
Congenital and hereditary thrombocytopenic purpura
Other primary thrombocytopenia
Secondary thrombocytopenia
- A general class of thrombocytopenia due to immune destruction of platelets. It includes idiopathic thrombocytopenic purpura, as well as immune destruction-related thrombocytopenias due to other reasons (e.g., AIDS, transfusion, lupus erythematosus).
Thrombocytopenia unspecified
- decrease in the number of blood platelets.
- A decrease in the number of platelets in the blood that may result in easy bruising and excessive bleeding from wounds or bleeding in mucous membranes and other tissues.
- A condition in which there is an abnormally small number of platelets in the circulating blood.
Other specified hemorrhagic conditions
- hemophilioid disorder due to deficiency of Von Willebrand factor and thus of Factor VIII complex.
Unspecified hemorrhagic conditions
- spontaneous or near spontaneous bleeding caused by a defect in clotting mechanisms (blood coagulation disorders) or another abnormality causing a structural flaw in the blood vessels (vascular hemostatic disorders).
