Welcome to the SEER Inquiry System (SINQ). SINQ is a collection of questions that cancer registrars have had while coding cancer cases. Click Search to look for specific questions or to select questions for a Report.

Recent Questions
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Reportability/Histology: Differentiated penile intraepithelial neoplasia and differentiated-type vulvar intraepithelial neoplasia are on the ICD-O-3 Histology update list for 2018 and they are stated to be Not reportable for 2018. However, SINQ 20160069 states that differentiated-type intraepithelial neoplasia, 8071/2 is reportable. Please clarify reportability for the two terms in the 2018 ICD-O-3 histology update. In addition, is differentiated intraepithelial neoplasia non-reportable for all sites?

Final May 07 2018

Marital Status: Is Marital Status always a self-reported status?  See Discussion.


Final May 02 2018

MP/H Rules/Histology--Brain and CNS: How should histology be coded for the following 2017 cases (pituitary adenoma vs. prolactinoma)? See Discussion.


Final Apr 27 2018

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

Final Mar 30 2018

Histology--Ovary: What is the correct ICD-O-3 histology code for sertoliform endometrioid carcinoma of the ovary?

Final Mar 30 2018

Reportability/Histology--Brain and CNS: Is multinodular and vacuolating neuronal tumor of the cerebrum reportable, and if so, is the histology coded as 9492/0?  See Discussion.

Final Mar 30 2018

Reportability--Brain and CNS: Are tuberous sclerosis cancers found in the brain reportable?  See Discussion.

Final Mar 30 2018

First course of treatment:  What is the correct code to use for allogenic stem cell transplant?

Final Mar 30 2018

Diagnostic confirmation--Heme & Lymphoid Neoplasms: Is Diagnostic Confirmation coded as 5 (positive laboratory test/ marker study) or code 8 (clinical diagnosis only) for a case that has a positive JAK2 mutation, and based on the results of the JAK2, the physician diagnosed the patient with polycythemia vera?  There were no blood smears or bone marrow biopsies done.

Final Mar 02 2018

Reportability--Head & Neck: Is dentinoameloblastoma reportable, and if so, what is the correct histology code?  See Discussion.

Final Feb 28 2018
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