Histology (Pre-2007): What code is used to represent the histology for a "malignant invasive gastrointestinal stromal tumor (GIST)"?
For tumors diagnosed 2001-2006: Malignant GIST is coded 8936/3.
For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.
Multiple Primaries (Pre-2007)/Recurrence--Cervix: How many primaries should be abstracted if a patient had a diagnosis in 1998 of adenocarcinoma in situ of the cervix treated with a total hysterectomy and a July 2004 vaginal mass biopsy with a diagnosis of invasive adenocarcinoma that is consistent with an endocervical primary?
For tumors diagnosed prior to 2007:
Abstract the July 2004 diagnosis as a new endocervical primary. Abstract an invasive cancer in the same site more than two months after an in situ cancer as a new primary. Residual cervical tissue is present following a hysterectomy.
For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.
Laterality--Head and Neck: Were the topography codes C090 and C091 intentionally left off of the Sites for Which Laterality Codes Must Be Recorded table in the 2018 SEER Manual? The codes were also removed from Table 10 in the 2018 Solid Tumor Rules for Head and Neck but appear under coding instructions 1b. and 6b. in the manual.
Thank you for bringing this to our attention. C090 and C091 were intentionally removed from the list of sites for which laterality must be coded. They should have also been removed from coding instructions 1b and 6b. We will make that correction in the next version of the manual.
Reportability--Heme & Lymphoid Neoplasms: Are either heparin-induced thrombocytopenia or heparin-induced thrombocytopenia that becomes refractory thrombocytopenia reportable?
Heparin-induced thrombocytopenia is not reportable.
If the diagnosis is changed to refractory thrombocytopenia, then this case is reportable.
SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.
EOD-Extension--Head & Neck: How do you code extension for a supraglottic larynx primary with "pre-epigolottic space" invasion?
For cases diagnosed 1998-2003:
Code the EOD-Extension field to 65 [Pre-epiglottic tissues]. Extension to "pre-epiglottic space" is equivalent to extension to "pre-epiglottic tissue."
EOD-Lymph Nodes--Lung: Are positive "neck nodes" coded to 7 [Distant lymph nodes, other than above (including cervical lymph nodes)] in this field because we do not have a specific lymph node chain named or are they coded to 6 [Contra lateral hilar or mediastinal (incl. bilateral); supraclavicular (transverse cervical), ipsilateral or contralateral; scalene, ipsilateral or contralateral] because this code represents the lowest possible code for involved neck nodes?
For cases diagnosed 1998-2003: Code EOD-Lymph Nodes as 7 [Distant lymph nodes, other than above (incl. cervical neck nodes)]. Lymph nodes in the "neck" are distant, rather than regional, for lung.
EOD-Lymph Nodes/EOD-Pathologic Review of Number of Regional Lymph Nodes Positive and Examined--Cervix: What codes are used to represent these fields for a cervix primary when the only information on lymph nodes is a CT of the pelvis showing "pelvic adenopathy" (no surgery was done)?
Code the EOD-Lymph Nodes field to 9 [unknown]. Code the Pathologic Review of Number of Regional Lymph Nodes Positive field to 98 [No nodes examined] and the Lymph Nodes Examined to 00 [No nodes examined] because there was no resection of the primary organs. Adenopathy, NOS, per SEER guidelines, is not coded as lymph node involvement
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