2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of Blood And Blood-Forming Organs 280-289 > 2006 ICD-9-CM Diagnosis 284 Aplastic anemia View the most recent version of ICD-9-CM 284 A form of anemia in which the bone marrow fails to produce adequate numbers of peripheral blood elements. Anemia resulting from bone marrow failure (aplastic or hypoplastic bone marrow). The production of erythroblasts and red cells is markedly decreased, and it may be associated with decreased production of granulocytes (granulocytopenia) and platelets (thrombocytopenia) as well. Aplastic anemia may be idiopathic or secondary due to bone marrow damage by toxins, radiation, or immunologic factors. -- 2004 A condition in which the bone marrow is unable to produce blood cells. 284 is a non-specific code that cannot be used to specify a diagnosis