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Report Produced: 02/24/2026 04:32 AM

Report Question ID Question Discussion Answer Year
20061029

Recurrence (Pre-2007)--Colon: When there is no statement of recurrence on the abstract, is a colon tumor at the anastomosis site a recurrence of the previous colon cancer or a new primary?

For tumors diagnosed prior to 2007:

If the cancer at the anastamosis site is more than two months after the previous colon cancer, abstract as a separate primary.

If the cancer at the anastamosis site is within two months of the original diagnosis and the histologies are the same, do not abstract as a separate primary.

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.

 2006
20061001 2004 SEER Manual Errata/CS Lymph Nodes--Head & Neck: On page C-353, in the supraglottic larynx schema, there is no mention of Level IV nodes in the CS Lymph Node codes.

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.The CS Steering Committee is aware of this issue and is working to resolve it.

 2006
20061061 CS Lymph Nodes--Breast: Clarify the use of code 25 [Movable axillary lymph node(s), ipsilateral, positive with more than micrometastasis (i.e., at least one metastasis greater than 2 mm)] vs code 60 [Axillary/regional lymph node(s), NOS; Lymph nodes NOS] when surgically removed lymph nodes are positive but the size of the metastasis is not stated. See Discussion.

Note 2 in CS manual states: "If the pathology report indicates that nodes are positive but size of the metastases is not stated, assume the metastases are greater than 0.2mm and code LNs as positive in this field. Use code 60 in the absence of other information about regional nodes."

1. If the LNs are known to be axillary LNs, note 2 seems to imply the size can be assumed to be greater than 0.2mm. Would you code 25 or 60?

2. Both codes 25 and 60 map to N1, node involvement. Do they each mean something else in the evaluation process?

3. What would constitute "absence of other information"?

4. Is the use of 60 over 25 specific to SEER registries or all users?

5. Abstractors are trained to assume LNs are mobile if there is no contrary information. Is this appropriate?

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.

Assign CS Lymph Nodes code 25 for breast when there are positive axillary nodes without internal mammary nodes. Code 25 is used in a couple of situations: a. when you know the lymph nodes are clinically movable and only the axillary nodes are involved; b. when you know the size of the metastasis in an axillary lymph node is more than a micrometastasis (i.e., > 2 mm). Code 60 can be used for any regional lymph node (internal mammary, infra- or supraclavicular, as well as axillary. So you can code to 25 if you have "regular" metastases in axillary lymph nodes only. If you don't know whether the mets are micro or regular, use code 60. Assign code 60 when there are positive regional nodes not further described.

1. Assign code 25 for positive axillary lymph nodes.

2. Codes 25 and 60 may map to N1, N1a, N2a or N3a depending on the coding of SSF3.

3. Assign code 60 when there is not enough information to assign a code from 13 to 50.

4. CS instructions are the same for all users. There are no CS instructions specific to SEER registries.

5. Yes, assume lymph nodes are moveable (not matted, not fixed) when there is no information to the contrary.

 2006
20061024 Histology (Pre-2007)--Kidney: How is a "mucinous tubular and spindle cell carcinoma" coded? See Discussion. Literature search results: "The new WHO-classification of renal tumors includes new subtypes, one of which is the mucinous, tubular, and spindle cell carcinoma. Many of these tumors had been previously diagnosed as sarcomatoid carcinoma. There are areas of cord-like growth and spindle cell configuration, sometimes with a clear cell appearance."

For tumors diagnosed prior to 2007:

Code histology to 8255 [Adenocarcinoma with mixed subtypes]. ICD-O-3 does not have a code specific to this combination histology. 8255 is the best code available.

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.

 2006
20061123 Reportability--Colon: Is a pathologically confirmed "tubulovillous adenoma with high grade dysplasia" reportable if clinical diagnosis at the time of the subsequent re-biopsy states "follow-up for colon polyps with ca in situ"? See Discussion. SINQ 20000245 states that high grade dysplasia is not synonymous with behavior code 2 (in situ). However, the 2004 SEER manual states that "cases clinically diagnosed are reportable. If the physician treats a patient for cancer in spite of the negative biopsy, accession the case." A pathologic diagnosis has priority over a clinical diagnosis. According to the pathologist, this case is not reportable. A re-biopsy is not treatment. 2006
20061127 CS Lymph Nodes--Esophagus: Is a resected positive "periesophageal nodule" coded as an involved lymph node for an esophagus primary? See Discussion. Per SINQ 20000846: Each gross nodule of metastatic carcinoma in the fat surrounding an organ is counted as one positive regional lymph node. SINQ 2000846 applied to EOD. Can this concept be used for Collaborative Stage?

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.

For cases diagnosed on or after January 1, 2004:

Search for additional information on the "nodule." Review the gross and microscopic descriptions to determine whether or not the nodule is a lymph node. If it is not possible to obtain further information, apply the downstaging rule and select the Extension or LN code that results in the lower category.

 2006
20061114 Histology (Pre-2007)--Melanoma: How is a "plaque-like nodular spitzoid malignant melanoma" coded?

For tumors diagnosed prior to 2007:

Code histology to 8721 [nodular melanoma]. Essentially, "plaque-like nodular spitzoid malignant melanoma" is nodular melanoma. Code 8721 is the most specific ICD-O-3 histology code available for this diagnosis.

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.

 2006
20061010 Multiple Primaries/Histology--Lymphoma: If an oral mucosa, right hard palate biopsy contains a composite lymphoma [low-grade follicular + chronic lymphocytic leukemia], how many tumors should be abstracted and how should the histology field(s) be coded?

For cases diagnosed prior to 1/1/2010:This is one primary. Assign code 9590 [Malignant lymphoma, NOS]. This is a composite lymphoma. Code to lymphoma when there is any solid tumor (in lymph nodes, tissue, etc.) Code to lymphoma, NOS since this is not purely follicular and there is no code for composite lymphoma.

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.

 2006
20061125 CS Lymph Nodes: Are positive right superficial inguinal lymph nodes coded to 30 (which is the case for anal canal primaries) or 31 (which is the case for anus primaries) if the primary is stated to be in the "cloacogenic zone" or is an anorectal primary?

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.Assign code 30 for positive unilateral superficial inguinal lymph nodes for cloacogenic primaries. The cloacogenic zone is part of the anal canal.

 2006
20061094

Ambiguous terminology: Does the phrase "considered to be" represent ambiguous terminology when modifying a reportable term?

A tumor considered to be malignant is reportable. "Considered to be" is an UNambiguous term.

 2006