Question: 20210030

Status


Final

Category


#1:   Primary site
#2:   Breast
#3:  


References


Source 1:   2021 SEER Manual
pgs:  
Notes:   Appendix C, Breast Coding Guidelines
Source 2:  
pgs:  
Notes:  


Question


Primary site--Breast:  Patient was diagnosed with invasive ductal carcinoma of the left breast. Site of mass is 2:00 to 3:00. What is the correct site code, C504 upper outer quadrant (UOQ) or C50.8 (overlapping)?



Discussion




Answer


Assign C504, UOQ, for a left breast primary mass at 2:00 to 3:00. See the illustration in the SEER Coding Guidelines for breast, https://seer.cancer.gov/manuals/2021/AppendixC/Coding_Guidelines_Breast_2021.pdf



History




Last Updated


04/09/2021

Date Finalized


06/10/2021