SEER Inquiry System - Question 20071120 Details

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Produced: 10/15/2025 6:20 PM

Question 20071120

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Inquiry Details

References:

#1: 2007 SEER Manual, C-662. Appendix C

#2: 2007 SEER Manual, 178

Question:

Surgery of Primary Site--Breast: Should code 51 (Modified radical mastectomy without removal of uninvolved contralateral breast) be used when a patient has excisional biopsy (22) and axillary dissection followed by a simple mastectomy without removal of uninvolved contralateral breast (41) as part of the first course of treatment?

Discussion:

Answer:

Assign code 51 or 52 if a patient has an excisional biopsy and axillary dissection followed by a simple mastectomy during the first course of therapy. Code the cumulative result of the surgeries, which is a modified radical mastectomy in this case.

SEER collects only one surgery code per case. Code the most invasive, extensive or definitive surgery in Surgery of Primary Site.

Cancer Site Category:

Breast

Data Item Category:

Surgery of Primary Site

Other Category:

N/A

Year:

2007