Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are to be abstracted when a patient is simultaneously diagnosed with multiple myeloma/plasma cell myeloma, plasmacytoma and plasma cell leukemia?
Primary site--Heme & Lymphoid Neoplasms: What is the primary site for a bone marrow biopsy positive for systemic mastocytosis that also involves the spleen and lymph nodes with associated leukocytosis, mild anemia and thrombocytopenia?
Primary site/Histology--Heme & Lymphoid Neoplasms: How are these fields coded for a precursor T lymphoblastic leukemia involving the bone marrow and peripheral blood (per pathology) with a clinically noted large mediastinal mass and cervical lymphadenopathy? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: How is the primary site to be coded for a 2010 diagnosis of follicular lymphoma involving the spleen and lymph nodes above and below the diaphragm?
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries should be reported for a bone marrow biopsy diagnosis of "lymphoproliferative disorder, small cell lymphocytic lymphoma/small cell lymphocytic leukemia consistent with marginal zone lymphoma"?
Primary site--Heme & Lymphoid Neoplasms: Should the primary site be coded to C421 [bone marrow] or C770-C779 [lymph nodes] for an adult T-cell leukemia/lymphoma [9827/3] that presented with a positive bone marrow biopsy and involvement of lymph nodes and the lung?
MP/H Rules/Histology/Ambiguous terminology: Can synonyms of listed terms, such as "variety" for the list termed "type," be used to code a more specific histology? See Discussion.
Reportability--Heme & Lymphoid Neoplasms: For cases diagnosed 2010 and later, are idiopathic thrombocytopenia and autoimmune thrombocytopenia reportable?
Primary site--Heme & Lymphoid Neoplasms: Is the primary site coded to C778 or C779 for a diffuse large B cell lymphoma with abdominal lymph node, neck lymph node, and spleen involvement?
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