Histology--Heme & Lymphoid Neoplasms: How is the histology coded when the original slides are reviewed at a later date and the revised diagnosis changes the histology? See Discussion.
Histology--Heme & Lymphoid Neoplasms: Is histology coded to 9684/3 [malignant lymphoma, diffuse large B-cell, immunoblastic NOS] for a biopsy that reveals "diffuse large B-cell lymphoma, immunoblastic variant"?
Primary site--Heme & Lymphoid Neoplasms: Should the primary site be coded to C499 [Blood vessels, NOS] for a case of intravascular large B cell lymphoma, Asian variant [9712/3] found in the bone marrow and liver? See Discussion.
Date of diagnosis--Heme & Lymphoid Neoplasms: Should the diagnosis date be coded to the date of the flow cytometry on the peripheral blood or the date of the bone marrow biopsy for a diagnosis of chronic lymphocytic leukemia/low grade B-cell lymphoma? See Discussion.
Ambiguous Terminology--Heme & Lymphoid Neoplasms: As ambiguous terminology is not used to code histology for Heme & Lymphoid primaries, how is the histology coded when a patient has a clinical diagnosis of "consistent with a myelodysplastic syndrome"? See Discussion.
Histology--Heme & Lymphoid Neoplasms: How is the histology coded when the bone marrow biopsy shows acute myeloid leukemia, but the physician states this is therapy-related AML secondary to prior radiation treatment? See Discussion.
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