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For tumors diagnosed prior to 2007:

Code the Date of Diagnosis to March. Code the Histology field to 8500/3 [Infiltrating duct carcinoma]. Histology can be upgraded from a clinical histology to a pathological histology anytime.

For cases diagnosed 1998-2003, in coding extension, you need to assess whether there has been progression of disease or not. If progression of disease is verified, do not code extension using the surgical information from November. Code the extension and tumor size based on the mammogram and physical examination at the time of the mammogram, if available.

If no progression of disease is verified, use surgical information to code extension and tumor size.

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.

Myelodysplastic syndrome cases with unknown dates of diagnosis identified in pre-2001 casefinding documents should not be accessioned and are not SEER reportable.

For cases identified in 2001 casefinding documents, when the diagnosis date cannot be confirmed using the medical records typically accessed by the registrar or central registry staff, do not accession these cases; they are not SEER reportable. This default applies only to those cases identified in 2001 casefinding documents.

For cases identified in 2002 or later casefinding documents, the attending physician should be contacted and asked to clarify the diagnosis date for cases identified with unknown dates of diagnosis. Clarifying the diagnosis date is necessary to determine whether the case is reportable and whether it should be accessioned.

For tumors diagnosed prior to 2007:

Code the Histology field to 8480/3 [mucinous adenocarcinoma] using rule D in the Coding Complex Morphology Diagnoses: "Code the morphology with the highest code."

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.

For cases diagnosed 1998-2003:

Code the EOD-Size of Primary Tumor field to 999 [unknown] for this case because this field is supposed to reflect the dimension for tumor width and not tumor depth. Tumor depth is coded in the EOD-Extension field.

For tumors diagnosed prior to 2007:

Code "Infiltrating duct and mucinous carcinoma" to 8523/3 [Infiltrating duct mixed with other types of carcinoma] according to the instructions for coding a single tumor with complex histology in Appendix C of the 2004 SEER manual. Assign code 8523/3 when the diagnosis is duct carcinoma mixed with another type of carcinoma. Look for "and" or "mixed" in the diagnosis.

Code the Histology field for a "ductal carcinoma, mucinous type" to 8480/3 [Mucinous carcinoma].

The instructions for coding a single tumor with complex histology are to code the specific type if the diagnosis is "Duct carcinoma, _____ type."

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.

For cases diagnosed prior to 1/1/2010:Code the Grade, Differentiation field to 9 [Cell type not determined, not stated or not applicable]. There is no combination code for B cell and T cell. There is also no hierarchy established for choosing one code over the other. Therefore coding such a case as a pure B cell or a pure T cell would misrepresent the phenotype.

For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.

For tumors diagnosed prior to 2007:

Code the Histology field to 8320/3 [granular cell carcinoma]. Renal cell carcinoma is a non-specific term that has several specific cellular subtypes, one of which is granular cell [8320/3].

Note: Do not code to granular cell tumor [9580/3], which is not a histology related to renal cell carcinoma.

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.