SEER Inquiry System - View
Source 1: 2012 Heme & Lymph Manual & DB
Multiple primaries--Heme & Lymphoid Neoplasms: Should myelofibrosis be coded as a second primary, or is it a descriptor of the MDS/RAEB-2?
The multiple primaries calculator shows for 9983/3 and 9961/3 this is a new primary, but I'm not sure if I'm interpreting this correctly.
Code 9961/3 is for PRIMARY myelofibrosis. Myelofibrosis, NOS (not specified as primary myelofibrosis) is not reportable. Myelofibrosis means a proliferation of fibroblastic cells in bone marrow, causing anemia and sometimes enlargement of the spleen and liver. Myelofibrosis may be associated with both benign and malignant disease processes.