Grade--Heme & Lymphoid Neoplasms: Is the phrase "aberrant T-cell expression" enough to code the grade field to T-cell when the final diagnosis on the pathology report is "AML with aberrant T-cell antigen expression"?
Surgery of Primary Site--Brain and CNS: Is "debulking" of a primary brain tumor coded to 21 [subtotal resection of tumor] or 30 [gross resection of tumor]?
Reportability-Bladder: Is a case with a cytology diagnosis, "positive for malignancy, favor low grade papillary urothelial carcinoma" reportable if the diagnosis on a subsequent bladder biopsy showed only "urothelial neoplasm of low malignant potential"? See Discussion.
MP/H Rules/Histology--Kidney, renal pelvis: How is histology coded for a tumor described as "renal cell carcinoma, clear cell with rhabdoid features"? See Discussion.
MP/H Rules/Histology--Brain and CNS: How is histology coded for a left occipital parietal area tumor stated to be a "low grade neuroectodermal neoplasm most consistent with neuronal tumor but lacking classic features of ganglioma" if the pathologist states the tumor is not malignant?
Reportability--Ovary: Does the ICD-O-3 term "stromal endometriosis" [8931/3] always imply a reportable malignant disease process if the pathologist also states there is "no evidence of carcinoma" in the same report? See Discussion.
Reportability--Esophagus/Stomach: Are the terms "high grade dysplasia" and "severe dysplasia" synonymous with in situ for tumors in the gastrointestinal tract? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: Is C448 [overlapping lesion of skin] or C449 [skin, NOS] the appropriate site code for a 2008 diagnosis of mycosis fungoides involving over 40 percent of the skin surface, including both upper and lower extremities and trunk?
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