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Report Produced: 04/19/2026 17:03 PM

Report Question ID Question Discussion Answer Year
20091066 Multiplicity Counter--Lung: How is this field coded when there is no evidence of the primary tumor? See Discussion. Patient presented with large mediastinal mass. CT showed no intraparenchymal lung tumor. Biopsy of mediastinal mass revealed adenocarcinoma consistent with lung primary. Code Multiplicity Counter to code 99 [Unknown]. 2009
20081121

Multiple primaries/Histology--Lymphoma: How many primaries should be abstracted and how should the histology field(s) be coded in this situation?

How would the bone marrow involvement by only NHL be handled? Composite lymphoma (9596) as defined by SEER and ICD-O is NHL and HD in one node which fits the final impression on the removed cervical node. See Discussion.

 Patient presented with cervical, supraclavicular & superior mediastinal lymphadenopathy. A cervical node was excised for pathological review. The final impression on that node was Composite lymphoma characterized by (1) Nodular Lymphocyte Predominant Hodgkin Lymphoma [HD] (2) CLL/SLL [NHL]. Then, a bone marrow aspirate/bx was performed revealing CLL/SLL [NHL].

For cases diagnosed prior to 1/1/2010:This is a single primary. The histology code is 9596/3 [composite Hodgkin and non-Hodgkin lymphoma].

According to the Single Versus Subsequent Primaries of Lymphatic and Hematopoietic Diseases table, 9596/3 followed by 9670/3 is one primary.

For cases diagnosed 1/1/10 and later, 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.

 2008
20041050 Surgery of Primary Site--Rectum: How do you code a procedure described as a "transanal resection, debulking of a large rectal mass"? See Discussion. Patient is not a surgical candidate due to "other medical conditions". Colonoscopy done for anemia and rectal bleeding. At the colonoscopy a "Transanal Resection Debulking of large rectal mass" is performed. Two specimens are sent to the lab. The first is labeled "rectal mass" and is a 2.0 cm diameter spherical fragment of tissue. The second is labeled "transanal debulking rectal mass" and is described as multiple, irregular shaped fragments of tan, rubbery tissue measuring 5.0 x 5.0 x 3.0 cm. Final path diagnosis: Debulking of rectal mass: Adenocarcinoma greater than 2 cm in size, resection margins positive for tumor. For cases diagnosed 1998-2002, code Surgery of Primary Site to 20 [Local tumor excision, NOS]. Because the procedure was performed via colonoscopy and apparently did not involve proctectomy, the best choice is a local excision. 2004
20091003 MP/H Rules/Histology--Peritoneal primary: Can the cell types from the primary site and a metastatic site be combined to code histology? See Discussion. Patient has vaginal mass biopsy diagnosed as 'papillary carcinoma with psammoma bodies.' Two weeks later the patient has laparoscopy with multiple peritoneal biopsies, diagnosed as 'well differentiated serous adenocarcinoma'. Patient stated to have peritoneal primary with mets to vagina and was treated with chemotherapy. Do we code the histology to 8441/31 from the primary site biopsies, or can we use 8460/3, combining the cell types from the primary and metastatic sites? Please see SINQ 20041062 for a similar question before the 2007 MP/H rules.

For cases diagnosed 2007 or later, assign code 8441 [serous adenocarcinoma, NOS].

Code the histology from the primary site when available. Do not combine histologies from primary and metastatic sites.

In this primary peritoneal case, the diagnosis from the peritoneal biopsies was serous adenocarcinoma.

 2009
20071087 MP/H Rules/Multiple Primaries--Breast: How many primaries are abstracted when bilateral breasts contain DCIS? Is a physician statement referring to this situation as one primary ignored? See Discussion. Patient has microcalcifications both breasts. Has bilateral mastectomy. Path report states Left breast multifocal DCIS predominantly micropapillary. Right breast two foci of DCIS micropapillary.

For cases diagnosed 2007 or later:

There are two primaries in this case.

Using the 2007 MP/H rules for breast, go to the multiple tumors module and start with Rule M4. Stop at rule M7. Tumors on both sides (right and left) are multple primaries.

Always use the 2007 Multiple Primary rules to determine the number of primaries. Do not use the physician statement.

 2007
20091057 CS Site Specific Factor--Lymphoma: Can the term "intermediate risk" be used to code IPI score? See Discussion. Patient has Hodgkin disease. The physician states that the patient has bulky stage IIA intermediate risk disease. Is the term "risk" another way of stating IPI score? If so, how would intermediate risk be coded?

This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.Code SSF 3 for lymphoma based on the IPI score stated in the record. Do not attempt to interpret statements or terms in order to assign a code to SSF 3. If no further information is available for this case, code SSF 3 999 [Unknown].

 2009
20130052 Histology--Heme & Lymphoid Neoplasms: How is the histology coded if a biopsy final diagnosis is diffuse large B-cell lymphoma but the physician's final diagnosis favored anaplastic large cell lymphoma? See Discussion. Patient has diffuse intrathoracic, intraabdominal and pelvic lymphadenopathy. An inguinal lymph node biopsy showed diffuse large B-cell lymphoma. The physician's final diagnosis favored anaplastic large cell lymphoma, but wanted to confirm this with FISH. The patient clinically deteriorated so the FISH studies were not done. Which histology is coded?

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

The histology should be coded as diffuse large B-cell lymphoma [9680/3]. The biopsy pathology report definitively diagnosed DLBCL. The physician's diagnosis cannot be used because it is an ambiguous diagnosis only, "favored anaplastic large cell lymphoma." "Favor" is an ambiguous term.

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
20100044 Primary site--Heme & Lymphoid Neoplasms: Should the primary site be coded to C499 [Blood vessels, NOS] for a case of intravascular large B cell lymphoma, Asian variant [9712/3] found in the bone marrow and liver? See Discussion. Patient has biopsy proven intravascular large B cell lymphoma, Asian variant, (9712/3) in bone marrow and liver. The Hematopoietic Database does not give a primary site code. Should the primary site be coded C49.9 because, by definition, this lymphoma arises in the blood vessels?

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

Code primary site to C499 [blood vessels]. The definition in the Heme DB does specify that this type of extranodal large B-cell lymphoma is characterized by lymphoma cells within the lumina of blood vessels with the exception of larger arteries and veins. The reason no primary site is specified is that Western variant can originate in the skin or CNS.

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.

2010
20130152 Primary site/Histology--Brain and CNS: How is the primary site and histology coded for a 2013 diagnosis of squamous cell carcinoma arising in a dermoid cyst of the third ventricle? See Discussion. Patient has a dermoid cyst of the third ventricle of the brain diagnosed in 1998. In 2013 the cyst was removed and was diagnosed as squamous cell carcinoma. An internet search revealed a journal article in the Journal or Neuro-Oncology that states, "Although rare, malignant transformation of intracranial epithelial cysts has a poor prognosis." The combination of site C715 [third ventricle, NOS] and histology 8070/3 [squamous cell carcinoma] fails SEER Edit IF 38_3: Primary site and Morphology Impossible. According to the literature, intracranial squamous cell carcinoma is very rare with most cases arising from a preexisting benign epidermoid cyst. The combination of C71_ and 8070/3 should be allowed. We will submit a request to have this edit revised. 2013
20140016 MP/H Rules/Histology--Bladder: What is the correct histology code for this situation? See discussion. Patient has 2 bladder tumors, both invasive -- one is transitional cell carcinoma (8120/3) and the other is papillary TCC (8130/3). They have the same extent of disease, both involve the lamina propria. Is this 8120, because of the Note under rule H11 or is this 8130 because under rule H12, it says 'papillary carcinoma and transitional cell carcinoma'? If so, what is the meaning of the note under rule H11?

Rule H12 applies, code to 8130.

The note under H11 is intended to explain the order of the rules; that is, why the rule to code papillary transitional/urothelial cell carcinoma (H12) follows the rule to code transitional/urothelial cell carcinoma (H11).

 2014