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Report Produced: 02/27/2026 11:16 AM

Report Question ID Question Discussion Answer Year
20010157 Histology (Pre-2007)--Breast: What code is used to represent the histology of "invasive ductal carcinoma and in situ ductal carcinoma, cribriform type"?

For tumors diagnosed prior to 2007:

Code the Histology field to 8500/3 [ductal carcinoma] unless the combination is ductal and lobular.

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.

 2001
20130019 Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded when a patient has a lymph node biopsy and peripheral blood that are positive for B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma but refuses a bone marrow biopsy?

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Code the primary site to C421 [bone marrow] per Rule PH5. Note 1 for Rule PH5 states CLL always has peripheral blood involvement. If the peripheral blood is positive for CLL/SLL and no bone marrow biopsy is done, code the primary site to C421 [bone marrow].

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.

2013
20020018 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 2002
20180092

Reportability/Histology--Brain and CNS: Is diffuse intrinsic pontine glioma is reportable? If yes, what is the correct histology code?

Diffuse intrinsic pontine glioma is reportable. For cases diagnosed in 2018, assign 9385/3.

 2018
20210034

Reportability/Histology--Endometrium: Is endometrial hyperplasia with atypia equivalent to atypical hyperplasia of the endometrium (8380/2) and thus reportable?

Endometrial hyperplasia with atypia is equivalent to atypical hyperplasia of the endometrium (8380/2) and thus reportable for cases diagnosed 2021 and later. Our expert pathologist consultant confirmed this for us.

 2021
20020024 Reportability--Cervix: The SEER Program Code Manual lists CIN III and carcinoma in situ of the cervix as not being reportable for cases diagnosed in 1996 or later, but does not list "adenocarcinoma in situ" or "squamous cell carcinoma in situ." Are these histologies still reportable?

For primary site cervix uteri, only histologies with behavior codes of 3 [invasive] are reportable to SEER for all registries.

Some SEER registries have opted to continue to collect behavior codes of 2 [in situ] for cervix uteri primaries.

 2002
20000259 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.

 2000
20031043 EOD-Extension--Corpus Uteri: How is this field coded for a stage III A endometrial primary with positive pelvic washings, involvement of the omental serosa, and negative lymph nodes? For cases diagnosed 1998-2003: Code EOD-extension as 85 [Metastasis]. According to our TNM consultant, Omental metastasis is M1, Stage IVB [EOD 85]. 2003
20180029

Reportability--Skin: Is early/evolving lentigo maligna reportable?

As of 01/01/2021, early or evolving melanoma in situ, or any other early or evolving melanoma, is reportable.

 2018
20021201 EOD-Extension--Lymphoma: What code is used to represent this field for a lymphoma with retroperitoneal lymph node involvement and splenomegaly?

For cases diagnosed 1998-2003:

Per AJCC, code spleen involvement which is demonstrated by:

1. Unequivocal palpable splenomegaly alone.

2. Equivocal palpable splenomegaly with radiologic confirmation (ultrasound or CT).

3. Enlargement or multiple focal defects that are neither cystic nor vascular (radiologic enlargement alone is inadequate).

If the spleen is proven to be involved, code extension for this case as 20 [Involvement of two or more lymph node regions on the same side of the diaphragm; Stage II].

If the spleen is not proven to be involved, code extension as 10 [Involvement of a single lymph node region; Stage I].

 2002