An official website of the United States government
Home
SEER Inquiry System - Report
Produced: 11/28/2024 6:02 AM
Question 20110070
Inquiry Details
References:
2010 SEER Manual. Appendix C
Question:
Discussion:
The CAP formatted pathology report histology field states, "Clear cell adenocarcinoma, NOS 98310/3)" and the tumor size comment field states, "Carcinoma involves a 1.5 cm endometrial polyp." Does rule H11 apply? Is the histology coded to clear cell adenocarcinoma [8310/3] because this is one histologic type identified in the CAP formatted histology field? Or should rule H12 apply and the histology coded as clear cell adenocarcinoma arising in a polyp [8210/3]? Or should we code the higher histology per rule H17 apply because clear cell adenocarcinoma and adenocarcinoma in a polyp are two specific histologies?
For colon primaries, whether or not the tumor arose in a polyp is quite important. Is this also the case for primaries listed in the Other Sites category?
Answer:
Code histology to 8310/3 [clear cell adenocarcinoma]. The Multiple Primary and Histology Coding Rules Manual is the correct source for coding histology for cases diagnosed 2007 or later.
The following steps are used to determine the histology code:
Open the Multiple Primary and Histology Coding Rules manual. For an endometrial primary, use the Other Sites Histo rules to determine the histology code because endometrium does not have site specific rules.
Go to the SINGLE TUMOR: INVASIVE ONLY module, which starts at Rule H8.
. Code clear cell adenocarcinoma [8310/3] because only one histologic type is identified.
