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Produced: 11/24/2024 5:36 AM
Question 20110078
Inquiry Details
References:
2007 MP/H Rules
Question:
MP/H Rules/Histology--Bladder: What is the histology code for "high-grade urothelial carcinoma, plasmacytoid variant"? See Discussion.
Discussion:
Per the MP/H Manual, Urinary Equivalent Terms & Definitions, Table 1, plasmacytoid is a specific type of Urothelial/Transitional Cell Tumor. What is the correct histology, and rule used, when a bladder resection pathology report states, "high-grade urothelial carcinoma, plasmacytoid variant"?
Answer:
Code the histology to 8082/3 [urothelial carcinoma, plasmacytoid].
The Multiple Primary and Histology Coding Rules Manual is the correct source for coding histology for cases diagnosed 2007 or later. Unfortunately, in this case there is no current rule that directs you appropriately to Table 1 from Rule H7 to find this histology combination. We need to add an example under Rule H7 that instructs you to "See Table 1" for an urothelial carcinoma diagnosis that mentions a more specific cell type (e.g., plasmacytoid). We will add a reference to Table 1 in Rule H7 in the updates to MP/H Rules.
Cancer Site Category:
Bladder
Data Item Category:
Histology
Other Category:
N/A
Year:
2011
