SEER Inquiry System - Search

Primary site--Heme &Lymphoid Neoplasms: What is the primary site of two extraosseous plasmacytomas, with positive pathology of right orbit and left lung. The patient's bone marrow biopsy, flow, and peripheral blood smear were negative. Is this coded as 9732/3, multiple myeloma (Primary Site and Histology Rule PH2) with the primary site as C809 (PH27)? Or is the primary site C421 since code 9732 says primary site is always C421, though bone marrow came back as negative?

Primary site--Lung: What primary site code is used for bronchus intermedius?

Primary site--Other and Unspecified Urinary Organs: What is the topography code for a Skene's gland adenocarcinoma?

Primary site--Ovary: What information takes precedence for coding the primary site in cases with high grade serous carcinoma that are clinically called ovarian but on pathology, the pathologist calls the primary site fallopian tube and the gynecology oncology/managing phsyician continues to call the cases ovarian. Both the ovary and tube are involved. Sometimes also referred to as "tubo-ovarian."

Primary site--Pancreas: Is the uncinate process of the pancreas coded to C259, C250, or C257?

Primary site/Biliary tract--Ampulla of Vater: What is the correct primary site code for intra-ampullary and periampullary adenocarcinoma, C241 (8144/3) or C249? See Discussion.

Primary site/Histology--Head & Neck: How are these fields coded when the final diagnosis for a skull based mass is "neuroendocrine carcinoma" and the IHC studies are incompatible with a brain/spinal cord primary (ependymoma)? See Discussion.

Primary site/Histology--Heme & Lymphoid Neoplasms: How are these fields coded for a case with pathologic diagnosis of "anaplastic large cell lymphoma, ALK-negative" involving the brain and a clinical statement of involvement in the right inguinal lymph nodes and the right lower extremity by a cutaneous lymphoma? See Discussion.

Primary site/Histology--Heme & Lymphoid Neoplasms: Should the primary site and histology codes be updated when a patient with a history in 2005 of a bone marrow diagnosis of chronic lymphocytic leukemia later presents in 2010 with lymph node biopsy diagnosis of small B-cell lymphocytic leukemia?

Primary site/Histology--Peritoneum: What is the correct primary site code for peritoneal mesothelioma in a female? When I use C482, it seems that the fields are all geared towards primary peritoneal carcinoma with FIGO staging, etc.