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SEER Inquiry System - Report
Produced: 01/07/2026 5:29 PM
Question 20230042
Inquiry Details
References:
#1: 2018 SEER Manual. Rectum Surgery Codes
#2: Glossary; NCI Definitions of Cancer Terms
Question:
First Course Treatment/Surgery of Primary Site--Rectum: What surgery code should be used for laparoscopic C/T open low anterior resection with colorectal anastomosis, loop ileostomy in diagnosis year 2020, code 30 or 40? See Discussion.
Discussion:
Can you provide clarification on Rectum primary surgical code 40 Pull through WITH sphincter preservation (colo-anal anastomosis)? Would this be code 30 or 40 due to the colorectal anastomosis?
Answer:
Assign code 40, Pull through WITH sphincter preservation (colo-anal anastomosis). The National Cancer Institute Dictionary of Cancer Terms defines coloanal anastomosis as a surgical procedure in which the colon is attached to the anus after the rectum has been removed. It is also called coloanal pull-through.
