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Report Produced: 01/12/2026 17:13 PM

Report Question ID Question Discussion Answer Year
20051115 Histology (Pre-2007)--All Sites: How are "malignant cells" in a cytology or "probably malignancy" in a CT scan coded?

For tumors diagnosed prior to 2007:

Assign code 8001/3 [Tumor cells, malignant] when the only information available is a cytology report stating "malignant cells."

Assign code 8000/3 [Neoplasm, malignant] when then only information available is a CT report stating "probable malignancy."

See ICD-O-3 page 27 for an explanation of "cancer" [8000] and "carcinoma" [8010].

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.

 2005
20051073 Reportability/Behavior--Colon: Is a final diagnosis of "mucosal carcinoid" of the colon reportable with a behavior code 2 [in situ] or 3 [invasive] if the microscopic description states that a "malignancy is not appreciated"? See Discussion.

2002 carcinoid case. Path final diagnosis: sigmoid colon polyp, bx-- sm mucosal carcinoid (1.5mm) w/crush artifact in a colonic polyp showing assoc inflammatory and hyperplastic changes. Micro: due to prominent crush artifact, histologic detail is compromised; however, significant atypia or malignancy is not appreciated.

Our state registry requests that this case be abstracted using the histology code 8240/3 because it is a mucosal carcinoid.

AJCC states TIS as being confined w/i basement membrane w/no extension through muscularis mucosae into submucosa. SEER-EOD codes as invasive: mucosa, lamina propria and muscularis mucosae. Our pathologist goes along with AJCC while we are having to code with SEER rules.

1) Assign /3 to mucosal carcinoid, unless stated to be in situ in the final diagnosis. ICD-O-3 is the reference for assigning the behavior code, not AJCC, EOD or CS.

2) The ICD-O-3 code for carcinoid of the sigmoid colon is C187 8240/3. This is reportable to SEER based on the final diagnosis above. Use the histology stated in the final diagnosis.

 2005
20051140 CS Reg LN Pos/Exam--Breast: How are nodes positive/examined coded for a positive FNA of a lymph node followed by a subsequent lymph node dissection? See Discussion.

A breast cancer patient had an FNA of an axillary lymph node positive for metastases. A modified radical mastectomy with lymph node dissection showed six lymph nodes negative for metastases.

Example 1: Patient received neoadjuvant chemotherapy prior to mastectomy and lymph node dissection.

Example 2: Patient received no neoadjuvant therapy.

This question is answered for EOD in SINQ 20031059. What is the answer 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.Include all nodes examined by the pathologist in Regional lymph nodes positive and Regional lymph nodes examined, unless there is disease progression. These fields are cumulative -- record the total number of regional nodes positive and examined during first course of treatment. Preoperative treatment does not affect the coding of these fields.

An FNA alone, positive for regional lymph node metastasis is coded as 95 for number positive and 95 for number examined.

For the case examples above, assuming there has been no disease progression, include all nodes positive and all nodes examined from both the FNA and the lymph node dissection in the counts. Code number of regional nodes positive as 01, number examined as 07 for both examples.

 2005
20051093 CS Lymph Nodes/Scope of Regional Lymph Node Surgery--Prostate: When prostate cancer is an incidental finding at cystoprostatectomy for bladder cancer, is the pelvic lymph node dissection coded for the prostate as well as the bladder?

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.

Yes, the pelvic lymph node dissection is coded as regional lymph node surgery for both primaries and the nodes are counted in collaborative staging for both primaries. The examination of the pelvic lymph nodes is relevant to both the bladder and the prostatic primaries.

 2005
20051080 Priorities/CS Extension--Lung: In the absence of a physician TNM, is there a hierarchy associated with coding extension when multiple imaging studies demonstrate different degrees of extension? See Discussion. CT of the lung showing primary lesion and other nodules in another lobe or contralateral lung, subpleural nodules, etc. The PET scan did not show activity for the other nodules. What is our "hierarchy" for imaging studies when there is no physician staging?

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.

There is no hierarchy among the various imaging studies. Assign CS extension based on the report documenting the greatest extension.

 2005
20051064 Cancer-Directed Treatment/Surgery of Primary Site--Anus: Is "infrared coagulation" coded as surgery or "other" treatment for anal canal primaries? Do not code infrared coagulation -- it is not treatment for cancer. 2005
20051101 CS Extension--Cervix: How are "positive pelvic washings" coded for a cervical 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.

According to the CS Steering Committee, positive pelvic washings for primary cervical cancer are not part of the staging criteria in the collaborative staging system (nor in TNM and FIGO). Document positive pelvic washings in a text field. The CS steering committee will add a statement to CS extension to clarify this for cervix uteri.

 2005
20051052 CS Tumor Size/CS Extension--Brain and CNS: How are these fields coded for a glioblastoma multiforme occurring in a 3.5 cm tumor in the parietal lobe and a 3.0 cm tumor in the occipital lobe?

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.

CS Extension code is 10 [confined to cerebral hemisphere]. Record the size of the largest lesion in CS Tumor Size. Both the occipital and parietal lobes are supratentorial and confined to the cerebral hemisphere with no mention of crossing midline or involvement of ventricles.

 2005
20051133 Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Breast: How are the number of primaries, histologies and CS extension fields coded for breast tissue that contains separate areas of invasive ductal carcinoma, intraductal carcinoma and Paget disease? See Discussion.

Excisional biopsy of a breast mass: 1.0 cm tumor that was infiltrating ductal carcinoma, high grade, with an associated intraductal component with comedonecrosis.

Pathology report for the mastectomy three weeks later: no residual tumor was found near the original biopsy site. In another portion of the same breast was found high-grade intraductal carcinoma involving the nipple ducts, with Paget Disease of the nipple. (No size was given for this.)

For tumors diagnosed prior to 2007:

This is a single primary. According to Exception 3 of Multiple Primary Rule 6 for multiple tumors, combinations of Paget disease and ductal carcinoma are a single primary. The histology code for this case is 8541 [Paget disease and infiltrating duct carcinoma]. Assign CS extension code 10 [confined to breast tissue] based on the information above.

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.

 2005
20051113 Histology (Pre-2007): What is the difference between code 8244/3 composite carcinoid (combined carcinoid and adenocarcinoma) and 8245/3 adenocarcinoid tumor?

For tumors diagnosed prior to 2007:

Assign code 8244/3 [composite carcinoid] when there is a combination of adenocarcinoma and carcinoid tumor.

Assign code 8245/3 [adenocarcinoid] when the diagnosis is exactly "adenocarcinoid."

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.

 2005