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Report Produced: 05/21/2026 16:08 PM

Report Question ID Question Discussion Answer Year
20000419 EOD-Extension--Corpus Uteri: How do you code myometrial involvement described as 1) "to the level of the middle one-third" or 2) "superficial"?

For cases diagnosed 1998-2003:

Evaluate each case carefully.

1. Code the EOD-Extension field to 12 [Myometrium-inner half] because the pathology report indicates involvement of the myometrium "to the level of." However, if you feel that you cannot make that determination with certainty and you cannot ask a pathologist for clarification, then code the EOD-Extension field to 14 [Myometrium, NOS].

2. Code the EOD-Extension field to 12 [Myometrium-inner half] for cases with "superficial" myometrial invasion.

 2000
20000848 Primary Site--Lymphoma: How should you code the primary site for a lymphoma that presents in a "mediastinal mass"? Code the Primary Site field to C77.1 [mediastinal lymph nodes]. 2000
20000491 Terminology: Do focus, focal, foci and chips mean the same thing?

Focus, focal, and foci are variations of the same word. Focus (noun) describes an area or point of disease, either grossly or microscopically. Focal (adjective) relates to the area/focus of disease; an example is a prostate with focal adenocarcinoma. This means that the majority of the prostate is benign and the adenocarcinoma is confined to one small area/point. Foci (plural) describe more than one area/focus of disease. A prostate with foci of adenocarcinoma means the disease is multifocal (several areas/points of disease).

Chips are microscopic amounts of either tissue or tumor. A pathologist might examine several chips of prostate tissue, one of which contains a focus of adenocarcinoma.

 2000
20000561 EOD-Pathologic Extension--Prostate: Can a pathological extension code be assigned when a retropubic prostatectomy is done? See discussion. The TNM manual states, "Total prostatoseminalvesiculectomy and pelvic lymph node dissection are required for pathologic staging."

For cases diagnosed 1998-2003:

The pathology report from a retropubic prostatectomy should be used to code the Pathologic Extension field. This field is coded using pathology report information from the prostatectomy operation regardless of the surgical approach and regardless of whether or not a pelvic lymph node dissection was performed. This is one area in which TNM rules for pathologic staging and SEER rules for EOD are slightly different.

 2000
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
20000431

Surgery Fields--Multiple sites: What code is used to represent these fields for the following surgical procedures?

1. Tongue, NOS - Hemiglossectomy with lymph node dissection

2. Choroid - Eye enucleation

3. Vulva, NOS - Vulvectomy with bilateral lymph node dissection

4. Gallbladder - Cholecystectomy

5. Lung - Laminectomy with partial removal of tumor

For cases diagnosed 1/1/03 and later:

1. Code Surgery of Primary Site to 30 and Scope of Regional Lymph Node Surgery to 3.

2. Code Surgery of Primary Site to 41.

3. Code Surgery of Primary Site to 40 and Scope of Regional Lymph Node Surgery to 3.

4. Code Surgery of Primary Site to 40.

5. Code Surgical Procedure of Other Site to 4.

 2000
20000430 Histology (Pre-2007)--Colon: What code is used to represent histology when the surgeon describes a sessile polyp and the final path diagnosis is stated as: "Rectal sessile polyp: Invasive moderately differentiated adenocarcinoma" (pathologist does not state that it is "arising in a sessile polyp")?

For tumors diagnosed prior to 2007:

Code the Histology field to 8210/3 [adenocarcinoma arising in a polyp]. The structure in which this adenocarcinoma is arising, is a polyp.

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
20000436

Histology (Pre-2007)--Colon: What code is used to represent the histology "adenocarcinoma arising in a papillary adenomatous polyp"? See discussion.

Is "adenocarcinoma arising in a papillary adenomatous polyp" equivalent to adenocarcinoma in a villous adenoma [8261/3] or adenocarcinoma in an adenomatous polyp [8210/3]?

For tumors diagnosed prior to 2007:

Code the Histology field to 8261/3 [adenocarcinoma in a villous adenoma]. In describing colon polyps, papillary and villous are equivalent terms.

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
20000495 EOD Fields--All Sites: Is EOD information limited to what is available exactly two months from the day of diagnosis?

For cases diagnosed 1998-2003:

EOD should include all information available within four months of diagnosis in the absence of disease progression or through completion of surgery(ies) in first course of treatment, whichever is longer.

Mets known to have developed after EOD was established should be excluded.

 2000
20000845 Primary Site: What code should be used to represent the site for an "extraovarian" papillary serous adenocarcinoma located in the "rectal muscle sheath"? See discussion. The location of the tumor in the rectus muscle sheath is unusual and suggests an origin within a preexisting mullerian. Code the Primary Site field to C49.4 [connective, subcutaneous and other soft tissues of the abdomen]. 2000