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SEER Inquiry System - Report
Produced: 01/15/2026 5:45 AM
Question 20031081
Inquiry Details
References:
SEER EOD-88, 3rd Ed, 90
Question:
Primary Site/EOD-Size of Primary Tumor--Lung: If the only lung mass described in CXR is a "hilar mass," is the primary site coded to C34.9 [Lung, NOS] or C34.0 [Main Bronchus; incl. Carina]? Also, can the size of the hilar mass be used to code the size of tumor field?
Discussion:
Answer:
Because the only description available is "hilar mass," code primary site as C34.0.
For cases diagnosed 1998-2003: Use size of mass for EOD-Size of Primary Tumor.
Cancer Site Category:
Lung
Data Item Category:
Primary site
Other Category:
N/A
Year:
2003
