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SEER Inquiry System - Report
Produced: 10/29/2025 6:08 AM
Question 20091039
Inquiry Details
References:
#1: 2007 SEER Manual, 127. 5.c.
#2: 2007 SEER Manual, C-501. Appendix C
Question:
CS Tumor Size--Lung:. Does code 997 (diffuse, entire lobe) for lung and main stem bronchus take precedence over a stated tumor size? See Discussion.
Discussion:
Per SPCSM 2007 'Coding Instructions for CS Staging Data Items-CS Tumor Size' item 5c states that code 998 (diffuse, entire lung) for lung and main stem bronchus takes precedence over any mention of size. Does this apply to code 997 as well?
Answer:
This answer was provided in the context of CSv1 coding guidelines. The response may not be used after your registry database has been converted to CSv2.Code the stated tumor size rather than 997. Code 997 does not take precedence over tumor size at this time. According to CoC, the instructions in the CS Manual, Part I-27, rule 5c are to alert the user to special circumstances. Code 997 is not included because it is not diffuse for all of the sites listed. The site-specific rules and codes in the schema always take precedence. Further instructions and clarifications will be added to the lung schema, CS Manual Part II-317 in the next version of CS.
Cancer Site Category:
Lung
Data Item Category:
N/A
Other Category:
N/A
Year:
2009
