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SEER Inquiry System - Report
Produced: 08/21/2025 4:08 PM
Question 20051081
Inquiry Details
References:
#1: 2004 SEER Manual, C-595
#2: ICD-O-3
Question:
Primary Site--Bladder: What subsite is used for fundus of the bladder?
Discussion:
Answer:
As of November 2005, Code fundus of bladder to C678 [overlapping lesion of bladder]. Opinions vary regarding the definition of bladder "fundus." However, according to our pathologist consultant, fundus includes posterior, anterior and lateral walls and dome. Fundus does not include the trigone.
A correction to page C-595 of the 2004 SEER manual will be included in the next errata.
History:
Prior to November 2005
C671 [Dome of bladder].
See the SEER Site-Specifc Coding Guidelines for Bladder on page C-595 in Appendix C of the SEER Program Coding and Staging Manual 2004. Fundus is listed as a synonym under dome of bladder.
Cancer Site Category:
Bladder
Data Item Category:
Primary site
Other Category:
N/A
Year:
2005
