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SEER Inquiry System - Report
Produced: 11/24/2024 7:32 AM
Question 20150062
Inquiry Details
References:
2014+ Grade Instructions
Question:
Grade--Bladder: How is Grade coded for the following cases diagnosed 1/1/2014 and later? See Discussion.
1) Low grade urothelial carcinoma, invasive carcinoma not identified (8120/2)
2) Papillary urothelial carcinoma, high grade, no evidence of invasion (8130/2)
Discussion:
The rules for coding Bladder Grade appear to have changed over time. SPCM 2013 Appendix C instructions state that Grade should be coded to 9 for urothelial carcinoma in situ (8120/2) and to 1 or 3 for non-invasive papillary urothelial carcinoma (8130/2).
When the grade instructions were removed from Appendix C in 2014, these site specific instructions for in situ bladder cases were no longer included. Thus the two grade system, found in SPCSM 2014+ Grade/Differentiation Coding Instructions for Solid Tumors, is being used to code grade for both the in situ and invasive urothelial malignancies stated to be "low grade" (code 2) or "high grade" (code 4). See also, SINQ 20150022. Please clarify the current grade instructions for in situ and invasive urothelial carcinomas of the bladder.
Answer:
Follow the instructions in the 2014+ Grade Coding Instructions to code grade for cases diagnosed 2014 and later, http://seer.cancer.gov/tools/grade/ Instruction #4.a. states to code grade for in situ tumors when grade is specified. This instruction applies to bladder cases, as well as other in situ tumors.
1. Assign grade code 2
2. Assign grade code 4
See the note below the table in instruction #7.
