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e right renal pelvis and tumor(s) in the left renal pelvis are multiple primaries. Note: Use this rule and abstract as a multiple primary unless documented to be metastatic. 16 M4 When no other urinary sites are involved, tumor(s) in both the right ureter and tumor(s) in the left ureter are multiple primaries. Note: Use this rule and abstract as a multiple primary unless documented to be metastatic. 17 M5 An invasive tumor following a noninvasive or in situ tumor more than 60 days after diagnosis is a multiple primary. 18 M5 Notes Note 1: The purpose of this rule is to ensure that the case is counted as an incident (invasive) case when incidence data are analyzed. Note 2: Abstract as multiple primaries even if the medical record/physician states it is recurrence or progression of disease. 19 M6 Bladder tumors with any bination of the following histologies: papillary carcinoma (8050), transitional cell carcinoma (81208124), or papillary transitional cell carcinoma (81308131), are a single primary. 20 M7 Tumors diagnosed more than three (3) years apart are multiple primaries. 21 M8 Urothelial tumors in two or more of the following sites are a single primary (See Table 1) ? Renal pelvis (C659) ? Ureter(C669) ? Bladder (C670C679) ? Urethra /prostatic urethra (C680) 22 M9 Tumors with ICDO3 histology codes that are different at the first (xxxx), second (xxxx) or third (xxxx) number are multiple primaries. 23 M10 Tumors in sites with ICDO3 topography codes with different second (Cxxx) and/or third characters (Cxxx) are multiple primaries. 24 M11 Tumors that do not meet