SEER Inquiry System - Search

EOD 2018/EOD Primary Tumor/Tumor Size--Clinical--Prostate: How is Tumor Size--Clinical coded when there is an incidental finding of prostate cancer on prostatectomy for another reason? See Discussion.

2016 SEER Manual/Primary Site--Corpus Uteri: Is the primary site C541 (endometrium) or C543 (uterine fundus) when the histology states endometrial adenocarcinoma, endometrioid type, but tumor site states fundus? See Discussion.

2018 SEER Manual/Primary Site--Ovary, Fallopian Tube: How should primary site be coded for a previously diagnosed ovarian cancer which is now being reclassified as fallopian tube? See Discussion.

2018 Solid Tumor Rules/Histology--Colon: What is the histology code of a diagnosis of well differentiated neuroendocrine tumor (NET), grade 2 of the appendix? See Discussion.

2018 Solid Tumor Rules/Histology--Lung: What is the appropriate histology code for the case below in the Discussion section? Is there a difference between adenocarcinoma in situ (bronchioloalveolar carcinoma), non-mucinous type (8252/2) and adenocarcinoma in-situ, mucinous? See Discussion.

2018 Solid Tumor Rules/Multiple Primaries--Breast: How many primaries should be reported when a left breast simple mastectomy identifies focal Paget disease of the nipple and 12 axillary nodes positive for metastatic lobular carcinoma (no primary lobular breast tumor identified)?

2018 Solid Tumor Rules/Multiple primaries--Lung: What is the histology and number of primaries for a lung case diagnosed in 2018 with adenocarcinoma with acinar predominant pattern on biopsy, and subsequent lobectomy showing adenocarcinoma with solid growth pattern and separate adenocarcinoma with lepidic predominant pattern? Should this be coded as one primary with an adenocarcinoma, NOS (8140/3) histology since we cannot use pattern or predominant, based on the histologic type listed in the synoptic report, and the fact it states synchronous primary tumors in the same lobe. See Discussion.

2021 SEER Manual/Primary Site--Ovary, Fallopian Tube: 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."

2021 SEER Manual/Surgery of Primary Site--Lung: What is the correct surgery code for a left upper lobe (LUL) wedge resection (confirming adenocarcinoma) followed by a lingular-sparing LUL lobectomy and mediastinal lymph node dissection? Is the correct Surgery Code 22 since the lingula was not resected (not the whole LUL Lung)? Or should the appropriate surgery code be 33 (this surgery suffices to code to a lobectomy with the mediastinal lymph node dissection)?

2024 SEER Manual/Primary Site--Breast: Is Primary Site coded as C504 or C501 based on the Solid Tumor Rules and the SEER Manual Breast Coding Guidelines? The pathology report reads "Right Breast 10:00 1 cm from the nipple."

Codes C502-C505 take priority over code C501. The description for C501 in the Solid Tumor Rules has "Area extending 1 cm around areolar complex."