Primary site--Bladder: What is the correct subsite for "interureteric ridge"? See Discussion.
Description: 4 mm nodule at base of bladder near interureteric ridge.
For this case, assign code C670 [Trigone of bladder]. The description for this case states that the tumor location is the base of the bladder. Base is a synonym for trigone.
The interureteric ridge (or interureteric crest, or interureteric fold) is a fold of mucous membrane extending accross the bladder between the two ureteric orifices. The trigone is located below the interureteric ridge.
Surgery of Primary Site--Corpus uteri: How are the surgery fields to be coded when patient undergoes hysterectomy and omentectomy for endometrial primary? See Discussion.
The example for instruction 6 in the 2007 SEER manual on page 179 (for surgery of primary site) states "code an en bloc removal when the patient has a hysterectomy and an omentectomy." There is no Site-Specific Surgery code for corpus uteri that combines hysterectomy with omentectomy. Is the information about removal of the omentum lost or is it documented under Surgical Procedure of Other Site?
Use the most appropriate code in the "Surgery of Primary Site field." Do not code the omentectomy in "Surgical Procedure of Other Site" when it is performed with a hysterectomy for an endometrial primary.
MP/H Rules/Histology--Breast: How is histology to be coded for a breast primary described as "tubular carcinoma (well differentiated invasive ductal carcinoma)"? See Discussion.
How are terms that are modified by parentheses to be interpreted? Do terms in parentheses modify the stated diagnosis and thus have priority over the stated diagnosis? Or would rule H17 apply and histology would be coded as duct and other carcinoma? For this case, the wording of the diagnosis and use of parentheses seem to indicate that tubular is a type of ductal carcinoma. Tubular is not listed as a specific duct carcinoma in the MP/H rules histology tables for breast.
For cases diagnosed 2007 or later, code the histology as tubular carcinoma [8211/3]. This is not a case of tubular AND infiltrating duct. The histology is stated to be tubular. Tubular is not a specific type of duct carcinoma.
Radiation Sequence with Surgery--Head & Neck: How is this field coded for a tonsil primary diagnosed on 4/16/07 by a regional lymph node FNA when the patient subsequently initiates radiation on 5/8/07 and has a tonsillectomy with neck dissection on 7/30/07?
The best way to handle this situation is to assign code 2 [Radiation before surgery] in Radiation Sequence with Surgery. Code 2 provides the best description of the sequence of events in this case. Radiation was delivered prior to the resection of the primary site.
Grade--Breast: How is this field coded for an "invasive ductal carcinoma, well differentiated, low nuclear grade"?
Assign code 1 [Grade 1, well differentiated]. Use the table in the 2007 SEER Manual on page C-607. Both "low grade" and "well differentiated" are coded 1 in the grade field.
Multiple primaries--Lymphoma: Should a second primary lymphoma be accessioned if the reporting hospital disagrees with the final diagnosis stated on a review of slides? See Discussion.
Example: Patient had an original diagnosis of small lymphocytic lymphoma (9670/3) of lung in 1986 and later presents with small B-cell non-Hodgkin lymphoma (9670/3) of small bowel in 2008 at Hospital A. Slides sent for review at Hospital B where patient was also seen. Slides there read as low grade B-cell lymphoma most consistent with extranodal marginal B-cell lymphoma of mucosal associated tissue (MALT Lymphoma). Hospital A's pathology report stated that immunostains would exclude mantle cell lymphoma and MALT lymphoma and the original pathology report has not been amended to match the outside path diagnosis. Is this a second primary of MALT lymphoma (9699)?
For cases diagnosed prior to 1/1/2010:The 2008 diagnosis is not a new primary according to the Definitions of Single and Subsequent Primaries for Hematologic Malignancies (the tri-fold heme table) using the pathology report diagnosis from the facility where the procedure was performed (Hospital A). Since Hospital A disagreed with the slide review and did not amend their diagnosis based on the slide review, do not use the slide review diagnosis in this case.
For cases diagnosed 1/1/10 and later, 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.
MP/H Rules/Multiple primaries--Thyroid: How many primaries should be coded in a patient with a 4/5/08 left thyroid lobectomy diagnosis of follicular carcinoma followed by a 7/25/08 right thyroid lobectomy diagnosis of papillary carcinoma, follicular variant?
For cases diagnosed 2007 or later:
Rule M17 under Other Sites applies. These are separate primaries based on their ICD-O-3 histology codes. Follicular carcinoma is coded 8330. Papillary carcinoma, follicular variant is coded 8340. The histology codes are different at the third number. Rule M6 does not apply because these diagnoses are more than 60 days apart.
Histology--Hematopoietic: How is histology coded for a "chronic lymphocytic leukemia with plasmacytic differentiation"?
For cases diagnosed prior to 1/1/2010:Assign histology code 9823/3 [Chronic lymphocytic leukemia]. Plasmacytic differentiation does not indicate a plasma cell or plasmacytic leukemia.
For cases diagnosed 1/1/10 and later, 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.
CS Mets at DX/CS Extension--Ovary: Is carcinomatosis always captured in the CS Mets field? Can the term carcinomatosis be used to describe peritoneal implants as well? See Discussion.
1/18/06 CT guided biopsy of abdominal mass & ant peritoneum nodule: Extensive carcinomatosis affecting the paracolic gutters, liver surface & pelvis. 6 cm tumor mass was visibly engulfing the small bowel & tube; poorly differentiated adenoca, mullerian derived, shows attributes of clear cell carcinoma, high grade (FIGO III), 2.5 cm size, does not involve fallopian tube. R&L abdominal wall & mesentery, mets adenoca.
5/31/06: tumor debulking with right salpingo-oophorectomy. Final DX: Poorly differentiated adenocarcinoma, clear cell type, right ovary (FIGO III), stage IV per MD.
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.In the case of ovarian cancer, the term carcinomatosis may refer to peritoneal implants, especially when the implants are numerous. It does not refer to distant metastases in this context.
This issue has been forwarded to the CS version 2 committee.
Surgery of Primary Site/Scope Regional LN Surgery--Breast: How should these fields be coded when a sentinel lymph node dissection removes one-to-three axillary lymph nodes and a total/simple mastectomy is done?
Assign code 41 [Total (simple) mastectomy, NOS WITHOUT removal of uninvolved contralateral breast] for Surgery of Primary Site. Assign code 2 [Sentinel lymph node biopsy] for Scope of Regional Lymph Node surgery. Code 41 applies to a total/simple mastectomy with any number of sentinel lymph nodes removed -- as long as all of the nodes removed are designated as sentinel nodes.
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