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SEER Inquiry System - Report
Produced: 05/23/2026 3:43 PM
Question 20071102
Inquiry Details
References:
2007 SEER Manual, 178, 201
Question:
Systemic/Surgery Sequence--Breast: How is this field coded for a breast cancer patient treated with a lumpectomy followed by chemotherapy and then a mastectomy?
Discussion:
Answer:
Assign code 2 [Systemic therapy before surgery]. The code in Systemic Treatment/Surgery Sequence is related to the surgery coded in Surgery of Primary Site. For SEER, the mastectomy will be coded in the surgery field. The chemotherapy occurred before the mastectomy.
Cancer Site Category:
N/A
Data Item Category:
Systemic / Surgery Sequen
Other Category:
N/A
Year:
2007
