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SEER Inquiry System - Report
Produced: 07/10/2026 7:41 AM
Question 20000551
Inquiry Details
References:
#1: SEER Program Code Man, 3rd Ed, 91
#2: 2004 SEER Manual, 73
Question:
Primary Site--Breast: What subsite code should be used for a diagnosis of "inflammatory carcinoma"?
Discussion:
Answer:
Code the Primary Site field to C50.9 [Breast, NOS] for a breast primary presenting with inflammatory cancer unless there is a palpable mass within the breast. If there is a palpable mass, code the primary site to the position of the mass.
Cancer Site Category:
Breast
Data Item Category:
Primary site
Other Category:
N/A
Year:
2000
