SEER Inquiry System - Search

Update to Current Manual/Neoadjuvant Therapy--Pancreas:  How are the neoadjuvant items coded for a patient who has unresectable pancreatic cancer and starts chemotherapy but will be evaluated after X cycles to see if patient may become a surgical candidate?

Solid Tumor Rules (2018/2021)/Multiple Primaries--Corpus Uteri:  How many primaries should be reported when a hysterectomy identifies primary endometrial carcinosarcoma (8980/3) and the endometrium has a background of endometrioid intraepithelial neoplasia (EIN) (8380/2)? A tumor size is provided for the carcinosarcoma, but not the background EIN.

Hormone Therapy--Breast:  How are hormone therapy (HT) and other related data items coded when a patient had a previous breast primary and is still on HT when diagnosed with a new breast primary? See Discussion.

Solid Tumor Rules (2018/2021)/Histology--Breast:  How is histology coded for a diagnosis of invasive mammary neuroendocrine tumor (NET), grade 2/3? See Discussion.

Histology/Reportability--Digestive System: Is “neuroendocrine neoplasm” reportable?  See Discussion.

EOD 2018/Summary Stage 2018--Intrahepatic Bile Duct: How should Extent of Disease (EOD) Primary Tumor (PT) be coded for invasion of or into (but not through) the visceral peritoneum for an intrahepatic bile duct primary? See Discussion.

Mets at Diagnosis Fields/Primary Site--Lymph Nodes:  How are the Mets at Diagnosis fields coded when the metastatic adenocarcinoma involves only one lymph node area and the primary site is unknown?  See Discussion.

First Course Treatment/Neoadjuvant Treatment:  How is Neoadjuvant Therapy--Clinical Response (NAACCR #1633) coded if a physician documents excellent response to treatment and nothing further?

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)?

Solid Tumor Rules (2018/2021)/Histology--Lung:  Should there be an exception to the Solid Tumor Rules for Lung to allow coding a more specific histology described by ambiguous terminology, when the only pathologic workup done is a cytology report?  Due to the unique nature of lung cases which are often diagnosed on imaging and cytology without more definitive pathology, we are seeing many cases where the existing Solid Tumor guidelines result in very generic NOS histology codes.  For example, lung mass found on imaging with a fine needle aspirate of a lymph node, final diagnosis "positive for malignancy" and comment "consistent with squamous cell carcinoma." See Discussion.