SEER Inquiry System - View
Source 1: Heme & Lymph Neo Manual & DB
Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for a 2011 diagnosis of systemic mastocytosis?
Patient presented with leukopenia, anemia and monoclonal gammopathy. A bone marrow biopsy in 2011 showed systemic mastocytosis [9741/3]. A subsequent shave biopsy of abdominal skin showed histologic features that were consistent with a diagnosis of mastocytosis. A later bone marrow biopsy was subsequently performed that showed progressive systemic mastocytosis.
Click on Hematopoietic and Lymphoid Database. In the search box, enter your histology or the ICD-O-3 code. Click on the link to that disease. In the "Help me code for dx year" field, enter the year of diagnosis. The Hematopoietic Coding Manual (PDF) button will appear.
The primary site is coded to the bone marrow [C42.1] for systemic mastocytosis with bone marrow involvement. The steps used to arrive at this decision are:
Step 1: Enter in the Heme DB to find the histology. Click on the SEARCH button. "Systemic mastocytosis" [9741/3] appears on the screen under the NAME column. systemic mastocytosis
Step 2: Check the PRIMARY SITE(S) section. The Hematopoietic Database indicates the primary site for systemic mastocytosis is always coded to bone marrow [C42.1].