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Report Produced: 08/02/2025 03:23 AM

Report Question ID Question
20021105 Grade, Differentiation: Do we code to the highest grade even when no grade is given at the time of initial diagnosis, but a grade is obtained on tissue removed after non-surgical treatment has occurred? See discussion.
20170007

MP/H Rules/Histology--Urinary System: How should histology be coded when there are multiple bladder, ureter and renal pelvis urothelial tumors including non-invasive papillary urothelial carcinoma in the left ureter, invasive papillary urothelial carcinoma invading the lamina propria in the bladder, and an invasive sarcomatoid urothelial carcinoma of the renal pelvis that invades the muscularis? See Discussion.
20120027 MP/H Rules/Histology--Colon: How is histology coded if a patient has two frank invasive adenocarcinomas in one segment of the colon and multiple tubular adenomas and hyperplastic polyps throughout the entire colon without a diagnosis of familial polyposis [FAP]? See Discussion.
20110137 MP/H Rules/Histology--Skin: How is the histology coded for a "malignant baso-melanocytic tumor" arising in the skin of right shoulder?
20120032

MP/H Rules/Histology--Melanoma: How is the histology coded for an invasive melanoma stated to have a "superficial spreading growth pattern"? See Discussion.
20150007

MP/H Rules/Histology: What is the proper histology code -- mucin producing adenocarcinoma or cholangiocarcinoma for the following case? See discussion.

20170040

MP/H Rules/Histology--Lung: What is the histology code for lung cancer case identified pathologically from a metastatic site that differs from the histology stated by the physician? See Discussion.
20190019

Solid Tumor Rules 2018/Histology--Brain and CNS: How is histology coded for a single meningioma tumor when the histology is a meningioma comprised of multiple specific subtypes/variants? See Discussion.
20200085

Solid Tumor Rules (2018)/Histology--Head and Neck: What is the histology of paraganglioma, NOS arising outside of the adrenal gland (for example, in the bladder) for cases diagnosed 1/1/2021 and later? See Discussion.
20130150

MP/H Rules/Histology--Bladder: What is the histology code histology code for a bladder TUR that demonstrates mixed invasive urothelial and small cell carcinoma? See Discussion.