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Report Produced: 09/12/2025 23:37 PM

Report Question ID Question Discussion Answer Year
20031082 EOD-Size of Primary Tumor: Pathologist states that the size of the tumor is difficult to measure but is greater than 3cm but less than 5cm. How would we code the tumor size?

For cases diagnosed 1998-2003:

Code the largest dimension mentioned, since that is the standard rule for coding tumor size. Keep in mind that tumor size is not used in analysis for certain sites such as stomach, colon & rectum, ovary, prostate, and urinary bladder. Tumor size is important for analysis for certain sites such as lung, bone, breast, and kidney.

2003
20100058 Grade: Can the nuclear grade value be coded in the grade field for any site, or is it restricted to sites where it is specifically listed as an option in the coding manual, i.e., breast, kidney, urinary sites, etc.? There is no restriction on sites for which nuclear grade can be coded in the grade field. If both differentiation and nuclear grade are specified, differentiation takes priority. 2010
20000842

Surgery of Primary Site--Skin: Explain the difference between code 30 and code 45.

Code 30 [Biopsy of primary tumor followed by a gross excision of the lesion]

Code 45 [Wide excision or re-excision of lesion or minor (local) amputation with margins more than 1 cm, NOS. Margins MUST be microscopically negative.]

 For cases diagnosed 1/1/2003 and after: Code 30 represents a biopsy or excision in which the margins of excision are less than 1 cm or the margins are unknown. Code 45 represents a wide excision in which it is known that the margins of excision are greater than 1 cm. 2000
20041003 EOD-Size of Tumor: How is this field coded when the only description is "greater then 10 cm?" For cases diagnosed 1998-2003: When the only information available is a statement such as "Greater than 10 cm," code tumor size 101 [10.1 cm]. 2004
20071034 Histology--Corpus uteri: Because coding a pathology final diagnosis of "serous carcinoma" for an endometrial primary to 8441/3 triggers the site/histology error in the SEER Edits, should histology be coded to 8010/3 [Carcinoma, NOS] instead? Assign histology code 8441 [serous carcinoma] and override the edit. Endometrium with serous carcinoma is NOT one of the "impossible" site / histology combinations. 2007
20000511 EOD-Pathologic Review of Number of Regional Lymph Nodes Positive and Examined: What codes are used to represent these fields when only a regional lymph node (positive) aspiration is performed?

For cases diagnosed 1998-2003:

With the exception of those sites/histologies that require 99 in these fields, code the Number of Regional Lymph Nodes Positive field to 97 [Positive nodes but number of positive nodes not specified]. Code the Number of Regional Lymph nodes Examined field to 95 [No regional Lymph nodes removed, but aspiration of regional Lymph nodes was performed].

 2000
20031008 Histology (Pre-2007)--Kidney: Is 8316/3 [Cyst associated renal cell carcinoma] the appropriate code for 1) Cystic renal cell carcinoma, 2) Renal cell carcinoma mass with cystic areas and 3) Cystic renal cell carcinoma, clear cell type?

For tumors diagnosed prior to 2007:

Yes, ICD-O-3 histology code 8316 is the correct code for the three examples above.

There are two categories of cyst-associated renal cell carcinomas: Renal cell carcinoma originating in a cyst, and Cystic 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.

 2003
20091037 MP/H Rules/Histology--Brain: How is histology coded for a "low grade neuroglial tumor" of the fourth ventricle?

For cases diagnosed 2007 or later, assign histology code 9505/1 [Ganglioglioma, NOS].

According to our pathologist consultant, low grade neuroglial tumor of the fourth ventricle correlates best to the "rosette-forming glioneuronal tumor of the 4th ventricle" which is a new WHO entity. There is no current ICD-O-3 code for this. The best code available at this time is 9505/1.

 2009
20130184

Reportability--Appendix: Are low-grade appendiceal mucinous neoplasms reportable?

For cases diagnosed prior to 1/1/2022

A low-grade appendiceal mucinous neoplasm (LAMN) is not reportable. The WHO classification designates LAMN with the behavior code /1 [uncertain whether benign or malignant].

 2013
20000261 EOD-Extension--Lymphoma: What code is used to represent a non-Hodgkin lymphoma presenting with involvement of an extralymphatic organ and lymph nodes on the opposite side of the diaphragm? For cases diagnosed 1998-2003: Code the EOD-Extension field to 31 [30 + localized involvement of an extralymphatic organ or site; Stage III E]. 2000