Histology--Heme & Lymphoid Neoplasms: What is the correct histology code for a diagnosis of mature B cell leukemia/lymphoma diagnosed only on a peripheral blood smear?
Histology--Heme & Lymphoid Neoplasms: How is the histology coded if the bone marrow biopsy favors lymphoplasmacytoid lymphoma and the physician states the diagnosis is lymphoplasmacytic lymphoma-Waldenstrom's macroglobulinemia? See Discussion.
Histology--Heme & Lymphoid Neoplasms: How is histology coded when the biopsy final diagnosis is "low grade B-cell lymphoma of unclear subtype (splenic marginal zone lymphoma?)" and the hematologist clinically diagnoses this as splenic marginal zone lymphoma? See Discussion.
Histology--Heme & Lymphoid Neoplasms: How is the histology coded if a pelvic mass biopsy is positive for B-cell non-Hodgkin lymphoma and a mediastinal lymph node biopsy is positive for follicular lymphoma, grade 1? See Discussion.
Histology/Primary site--Heme & Lymphoid Neoplasms: How are the histology and primary site coded if a pleurocentesis is compatible with plasmablastic plasmacytoma/lymphoma when no further information is available?
Histology--Heme & Lymphoid Neoplasms: How is histology coded for a diagnosis of composite lymphoma (follicular lymphoma and small lymphocytic lymphoma, BCL-2 positive)?
Ambiguous terminology/Histology--Heme & Lymphoid Neoplasms: How is histology coded when a skin of lip pathology report demonstrates neoplastic lymphoid infiltrate with small B cells, compatible with B-cell small lymphocytic lymphoma/chronic lymphocytic leukemia? See Discussion.
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/Histology--Heme & Lymphoid Neoplasms: How are these field coded when a biopsy of a substernal mass and the pericardium show T-cell lymphoblastic lymphoma/leukemia, the CT scan showed mediastinal and hilar adenopathy and no bone marrow biopsy was done?
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