SEER Inquiry System - Report
Produced: 10/04/2025 9:55 AM
Question 20041031
Inquiry Details
References:
#1: CS Manual, Part II, 549-551. Vers 1.0, Jan 1, 2004
#2: 2004 SEER Manual, C-602
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.
Code the CS Extension field to 01 [Papillary transitional cell carcinoma stated to be noninvasive]. Extension into bladder diverticula does not change the code. Diverticula are pouches in the mucosa (mucous membrane).