SEER Inquiry System - Report
Produced: 10/15/2025 10:29 PM
Question 20071065
Inquiry Details
References:
#1: 2007 SEER Manual, C-539. Appendix C
#2: 2007 SEER Manual, 90
Question:
Discussion:
Answer:
For cases diagnosed 2007-2013:
No, code multiplicity counter to 02 [two tumors present]. According to the multiple primary rules, these two lung tumors are reported as a single primary. Record the number of tumors reported as a single primary in Multiplicity Counter.
Multiplicity Counter no longer required by SEER as of 1/1/2013.