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Report Produced: 01/16/2026 12:02 PM

Report Question ID Question Discussion Answer Year
20051018 CS Lymph Nodes--Breast: Must there be a statement of "moveable" present to code 25 in this field and if a lymph node is not stated to be "fixed" is it presumed to be moveable? Please provide an example in your answer of when to use code 25.

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 word "movable" does not have to be used to assign code 25. A "movable" lymph node is an involved lymph node not described as fixed or matted. The general rule is to code the lesser or lower category, which would be the case if neither movability nor fixation is mentioned. See page C-471 of the 2004 SEER Manual.

Code 25 Example: Involved lymph nodes per lymph node dissection. No mention of fixation or matting. Size of largest met within a lymph node is 4mm.

 2005
20000258

EOD-Extension--Lung: If a CT scan indicates that a patient has evidence of "long-standing pneumonia," is that synonymous with "pneumonitis" for the purposes of coding extension for lung primaries?

No. These terms are not synonymous. For cases diagnosed 1998-2003, disregard the pneumonia and use the other available information to code extension.

 2000
20021111 Histology/Grade, Differentiation--Lymphoma/Leukemia: Do you agree with coding a diagnosis of Nasal NK/T cell lymphoma to 9719/38?

For cases diagnosed prior to 1/1/2010:Yes. Code the Grade, Differentiation field to 8 [NK cell] rather than 5 [T-cell]. Code the Histologic Type to 9719/38 [NK/T-cell lymphoma, nasal and nasal-type with Cell indicator of NK (8)].

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.

 2002
20071036 MP/H Rules/Histology--Thyroid: Is a "papillary carcinoma of the thyroid" coded to 8260/3 [Papillary adenocarcinoma] per the ICD-O-3 because it lists "papillary carcinoma of the thyroid" as a synonym for that code or should it be coded to 8050 [Papillary carcinoma, NOS]? For cases diagnosed 2007 or later, assign code 8260 [papilary carcinoma of the thyroid]. 2007
20061133 Terminology, NOS--Melanoma: Is a diagnosis of melanoma "with associated intradermal nevus" coded the same as a melanoma "arising in a nevus"? Yes, melanoma "associated with" a nevus and melanoma "arising in" a nevus are synonymous. 2006
20000270

EOD-Lymph Nodes--Lung: What code is used to represent this field when the only information is a description of:

1. "hilar mass"

2. "mediastinal mass"

3. "enlarged" or "greater than 1 cm" used to describe any of the lymph nodes listed under code 2 in the EOD Lymph Nodes field?

For cases diagnosed 1998-2003:

Code EOD-Lymph Nodes fields as follows for the examples given:

1) 9 [Unknown; not stated] for a "hilar mass"

2) 2 [Mediastinal] for a "mediastinal mass"

3) 2 [Mediastinal] for "enlarged" or "greater than 1 cm," if used to describe any of the named lymph nodes listed under code 2 in the EOD-Lymph Nodes field.

 2000
20010134 Diagnostic Confirmation--Testis: How do you code this field when a testicular mass is confirmed to be cancer on physical exam and testicular antigen, but the orchiectomy specimen was negative and yet the final signout diagnosis on the medical record was "testicular cancer"? Code the Diagnostic Confirmation field to 5 [Positive laboratory test/marker study] because the disease was confirmed both clinically and by a positive marker. Code 8 [Clinical diagnosis only] is used when the diagnosis is based on information other than that coded in 5, 6, or 7 [positive lab test/marker study, visualization, and radiography or other imaging techniques]. Code 8 is rarely used. 2001
20051134 Histology--Lymphoma: How is "histiomonocytic lymphoma" coded?

For cases diagnosed prior to 1/1/2010:Assign code 9755 [Histiocytic sarcoma; True histiocytic lymphoma]. "Histiomonocytic" is not standard terminology, according to our expert consultant. However, 9755 is the best code to assign.

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.

 2005
20140048

MP/H Rules/Histology--Sarcoma: Is 8811/3 the correct code for myxofibrosarcoma (myxoid malignant fibrous histiocytoma) high-grade (grade 3/3)?

8811/3 is the correct code for myxofibrosarcoma. See Rule J on page 33 in ICD-O-3. Fibromyxosarcoma is equivalent to myxofibrosarcoma.

2014
20160032

Reportability--Brain: Is benign lymphangioma of the brain (9170/0) reportable? It is not on the list of non-malignant blood vessel tumors in the National Program of Cancer Registries Clarifications for Central Nervous System (CNS) tumors.

Lymphangioma of the brain or CNS is not reportable. Lymphangioma is a malformation of the lymphatic system. Even though it has an ICD-O-3 code, do not report it.

2016