SEER Inquiry System - Search

Update to current manual/Surgery of Primary Site/Surgery codes--Melanoma: Can the operative report be used to assess margins if there is no residual melanoma on the wide excision and no margins stated, or if distance is not stated on the pathology report when there is residual melanoma? See Discussion.

Reportability/Histology--Pancreas: Is mucinous cystic neoplasm of pancreas reportable?

Summary Stage 2018/EOD 2018: How should SEER Summary Stage 2018 be coded for a 2018 thymus primary which has mediastinal fat invasion without mediastinal pleural involvement? See Discussion.

Primary Site/Brain and CNS: How is primary site coded when the ICD-O-3 provides a sub-site-associated morphology code and the only information available to code primary site for a particular diagnosis indicates a non-specific/not otherwise specified (NOS) site code? See Discussion.

Sex: How should the sex field be coded for the newly allowable non-binary gender designation ? See Discussion.

First course treatment/Scope of Reg LN Surgery--Breast: How is Scope of Regional Lymph Node Surgery coded when there is a sentinel lymph node biopsy (SLNBx) and intra-mammary nodes removed for a single primary? See Discussion.

Solid Tumor Rules (2018)/Multiple primaries--Lung: How many primaries should be reported for a patient with a March 2018 diagnosis of non-small cell carcinoma with neuroendocrine differentiation on lung biopsy (single left upper lobe tumor only) who also has a prior history of left lung squamous cell carcinoma in 2016 (treated with chemotherapy/radiation)? See Discussion.

Solid Tumor Rules (2018)/Histology--Lung: What is the correct histology code for minimally invasive adenocarcinoma in the lung, 8140/3 or 8256/3? See Discussion.

First course treatment/Surgery of Primary Site--Rectum: Please provide the correct surgery code for a laparoscopic transanal abdominal transanal (TATA) procedure with bilateral salpingo-oophorectomy (BSO) for rectal cancer following neoadjuvant chemotherapy. See Discussion.

Histology--Heme & Lymphoid Neoplasms: How is the histology coded for a when the pathologist notes the low grade B-cell lymphoma raises the possibilities of extranodal marginal zone lymphoma of mucosa associated tissue (MALT lymphoma) and lymphoplasmacytic lymphoma (LPL)? See Discussion.