occurring in bone) Extraosseous plasmacytoma 974 Mast cell Tumors M9740/1 Mastocytoma, NOS or Extracutaneous mastocytoma Mast cell tumor, NOS M9740/3 Mast cell sarcoma Malignant mast cell tumor Malignant mastocytoma M9741/3 Malignant mastocytosis Systemic tissue mast cell disease Aggressive systemic mastocytosis or Systemic mastocytosis with associated clonal, hematological non-mast cell lineage disease M9742/3 Mast cell leukemia (C42.1) 975 Neoplasms of Histiocytes and Accessory Lymphoid Cells M9750/3 Malignant histiocytosis M9751/1 Langerhans cell histiocytosis, NOS M9752/1 Langerhans cell histiocytosis, unifocal Langerhans cell granulomatosis, unifocal Langerhans cell histiocytosis, mono-ostotic Eosinophilic granuloma M9753/1 Langerhans cell histiocytosis, multifocal Langerhans cell histiocytosis, poly-ostotic M9754/3 Langerhans cell histiocytosis, disseminated Langerhans cell histiocytosis, generalized Letterer-Siwe disease Acute progressive histiocytosis X M9755/3 Histiocytic sarcoma True histiocytic lymphoma M9756/3 Langerhans cell sarcoma M9757/3 Dendritic cell sarcoma, NOS Interdigitating dendritic cell sarcoma/tumor M9758/3 Follicular dendritic cell sarcoma/tumor 976 Immunoproliferative diseases M9760/3 Immunoproliferative disease, NOS M9761/3 Waldenstrom macroglobulinemia (C42.0) (see also M9671/3) M9762/3 Heavy chain disease, NOS Alpha heavy chain disease Mu heavy chain disease Gamma heavy chain disease Franklin disease M9764/3 Immunoproliferative small intestinal disease (C17._) Mediterranean lymphoma Primary small intestinal extranodal marginal zone lymphoma M9765/1 Monoclonal gammopathy of undetermined significance MGUS Monoclonal gammopathy, NOS (M9766/1) Angiocentric immunoproliferative lesion LYmphoid granulomatosis Lymphomatoid granulomatosis M9767/1 Angioimmunoblastic lymphadenopathy M9768/1 T-gamma lymphoproliferative disease M9769/1 Immunoglobulin deposition disease Systemic light chain disease Primary amyloidosis 980–994 Leukemias 980) Leukemias, NOS M9800/3 Leukemia, NOS M9801/3 Acute leukemia, NOS Blast cell leukemia Undifferentiated leukemia Stem cell leukemia M9805/3 Acute biphenotypic leukemia Acute leukemia of ambiguous lineage Acute mixed lineage leukemia Acute bilineal leukemia (982–983) Lymphoid leukemias (C42.1) M9820/3 Lymphoid leukemia, NOS Lymphocytic leukemia, NOS Lymphatic leukemia, NOS M9823/3 B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma (see also M9670/3) Chronic lymphocytic leukemia, B-cell type (includes all variants of BCLL) Chronic lymphocytic leukemia Chronic lymphoid leukemia Chronic lymphatic leukemia M9826/3 Burkitt cell Leukemia (see also M9687/3) Acute lymphoblastic leukemia, mature B-cell type M9827/3 Adult T-cell leukemia/lymphoma (HTLV-1 positive) includes all variants Adult T-cell lymphoma/leukemia M9831/1 T-cell large granular lymphocytic leukemia T-cell large granular lymphocytosis NK-cell large granular lymphocytic leukemia Large granular lymphocytosis, NOS M9832/3 Prolymphocytic leukemia, NOS M9833/3 B-cell prolymphocytic leukemia M9834/3 T-cell prolymphocytic leukemia M9835/3 Precursor cell lymphoblastic leukemia, NOS (see also M9727/3) Precursor cell lymphoblastic leukemia, not phenotyped Acute lymphoblastic leukemia, NOS (see also M9727/3) Acute lymphoblastic leukemia, precursor-cell type Acute lymphoblastic leukemia-lymphoma, NOS Acute lymphocytic leukemia Acute lymphoid leukemia Acute lymphatic leukemia Acute lymphoblastic leukemia, L2 type, NOS FAB