SEER Inquiry System - Report
Produced: 10/19/2025 1:49 AM
Question 20051020
Inquiry Details
References:
#1: 2004 SEER Manual, C-476. App C, July 2005
#2: CS Manual, Part II, 458. Vers 01.02.00, April 2005
Question:
Discussion:
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.
First, determine whether the bone mets in this case are progression of disease. If the patient was asymptomatic at the time of the mastectomy, the bone mets are disease progression, not initial stage.
If the initial stage includes the bone mets and they are not disease progression, extension must be coded to at least 10. Code site-Specific Factor 6 to 040 [Size of entire tumor coded, size of invasive component not stated].