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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Lymphatic And Hematopoietic Tissue 200-208 > Other Malignant Neoplasms Of Lymphoid And Histiocytic Tissue 202.* > 2007 ICD-9-CM Diagnosis 202.4 Leukemic reticuloendotheliosis This code may be outdated. View the most recent version of ICD-9-CM 202.4 A neoplastic disease of the lymphoreticular cells which is considered to be a rare type of chronic leukemia; it is characterized by an insidious onset, splenomegaly, anemia, granulocytopenia, thrombocytopenia, little or no lymphadenopathy, and the presence of "hairy" or "flagellated" cells in the blood and bone marrow. A rare neoplasm of small B-lymphocytes with "hairy" projections in bone marrow, spleen and peripheral blood. Most patients are middle-aged to elderly adults and present with splenomegaly and pancytopenia. (WHO, 2001) -- 2003 A type of chronic leukemia in which the abnormal white blood cells appear to be covered with tiny hairs when viewed under a microscope. 202.4 is a non-specific code that cannot be used to specify a diagnosis 202.4 contains 2 index entries View the ICD-9-CM Volume 1 202.* hierarchy 202.4 also known as: Hairy-cell leukemia Index entries containing 202.4: Leukemia, leukemic (congenital) (M9800/3) 208.9 hairy cell (M9940/3) 202.4 Reticuloendotheliosis leukemic (M9940/3) 202.4