MP/H Rules--Breast: What histology code should be used with invasive papillary carcinoma with cribriform carcinoma component? There is also DCIS adjacent to the invasive tumor, predominant cribriform and focal papillary patterns. This is a single breast tumor. See Discussion.
MP/H Rules/Histology--Esophagus: How is histology coded for a biopsy of the esophagus with a pathologic diagnosis of "adenocarcinoma, intestinal type" when there is no evidence of a gastric tumor in scans or EDG? See Discussion.
MP/H Rules/Multiple Primaries/CS Extension: How many primaries are to be accessioned when tumors are present bilaterally in the pleura and fallopian tubes? See Discussion.
MP/H Rules/Histology--Thyroid: Regarding rule H15, is the mixed code 8340 [Papillary carcinoma, follicular variant] used when there are subtypes of these histologies described, such as a tumor diagnosed with follicular and papillary microcarcinoma or should 8341 [Papillary microcarcinoma] be used?
MP/H Rules/Histology--Lung: How should Diagnosis Date, Diagnostic Confirmation and Histology be coded for the LEFT lung mass in the following case?
PET shows a 3 cm mass in the left lung and a 2.9 cm mass in the right lung. No reportable terminology in PET. The right mass is biopsied and shows adenocarcinoma. The left mass is not biopsied. Based on rule M6, this should be reported as two primaries. No additional information in medical record. Patient expired.
MP/H Rules--Lung: In reference to lung, SINQ 20071028 states "'nodule' is not an equivalent term for tumor, mass, lesion, or neoplasm." However, slide 5 for the MPH lung section of "Beyond the Basics" states "we use the words 'mass, nodule and lesion' interchangeably." Which is it?
MP/H Rules/Histology--Colon: Regarding histology rule H21, is there a hierarchy or do you code the higher histology if there is an adenocarcinoma arising in a polyp and an adenocarcinoma in a villous adenoma?
MP/H Rules/Histology--Gallbladder: What histology is coded for a tumor described as "90% high grade neuroendocrine ca, large cell type; and 10% low grade adenocarcinoma, conventional type"?
MP/H Rules/Multiple Primaries: When the pathology report from a FNA or other biopsy states an "in situ" carcinoma and the patient waits more than 60 days for a more definitive procedure which documents an "invasive" carcinoma, is this reported as two primaries?
MP/H Rules--Breast: Is a 2008 invasive ductal carcinoma counted as a new primary when it follows a 2005 invasive lobular carcinoma diagnosed in the same breast? See Discussion.
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