SEER Inquiry System - Question 20130090 Details

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Produced: 11/27/2024 8:38 AM

Question 20130090

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Inquiry Details

References:

2007 MP/H Rules

Question:

MP/H Rules/Primary site/Histology--Colon/Rectum: How are the primary site and histology to be coded for a diagnosis of familial polyposis with malignant tumors in the sigmoid and rectum? See Discussion.

Discussion:

Preoperative diagnosis was familial polyposis with rectal and rectosigmoid cancer.

The pathology report from the colon resection showed:

5 mm tumor in the sigmoid. Histologic type: adenocarcinoma.

1.9 cm tumor in the distal rectum. Histologic type: adenocarcinoma with signet ring cell differentiation.

4 cm tumor in the proximal rectum. Histologic type: adenocarcinoma.

Gross description: The mucosa of the colon is tan pink with polyposis throughout; more than 1000 tan sessile polyps.

Should this be a single primary per MP/H Rule M3, histology coded to 8220/3 [familial polyposis] per MP/H Rule H17, and primary site coded to C199?

Answer:

This case should be accessioned as a single primary. Code the primary site to the colon and rectum [C199] and the histology to adenocarcinoma in familial polyposis coli [8220/3] per MP/H Rule H17.

For cases of familial polyposis, when the rectosigmoid or rectum are involved, assign code C199 [colon and rectum]. When the rectosigmoid or rectum are not involved, assign code C189 [colon, NOS].

Cancer Site Category:

N/A

Data Item Category:

Primary site, Histology

Other Category:

N/A

Year:

2013