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SEER Inquiry System - Report
Produced: 11/08/2025 1:20 PM
Question 20071100
Inquiry Details
References:
2007 SEER Manual, 93
Question:
Type of Multiple Tumors--Colon: How is this field coded for a case in which the patient is found to have two in situ polyps and an adenocarcinoma arising in a polyp all in the same segment of the colon? See Discussion.
Discussion:
Code 30 would not count the fact that these are polyps. Code 31 states "AND a frank adenocarcinoma." What would be the correct code?
Answer:
Assign code 30 [In situ and invasive] in this case. Code 31 does not apply here because frank adenocarcinoma is not present.
Cancer Site Category:
Colon
Data Item Category:
N/A
Other Category:
N/A
Year:
2007
