AHA Coding Clinic® for ICD-9 - 2005 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Thrombocytopenia

Effective October 1, 2005, code 287.3, Primary thrombocytopenia, has been expanded to separately identify the different types of primary thrombocytopenias. The new codes now differentiate between unspecified primary thrombocytopenia (287.30), immune thrombocytopenic purpura (287.31), Evans’ syndrome (287.32), congenital and hereditary thrombocytopenic purpura (287.33), and other primary thrombocytopenia (287.39). Immune thrombocytopenic purpura (ITP): ITP is a disorder of the blood. It is recognized as an autoimmune disorder, with development of antibodies to one’s own platelets. The platelets are then destroyed by phagocytosis, which occurs primarily in the spleen. Some...

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