Systemic/Surgery Sequence--Breast: How is this field coded for a breast cancer patient treated with a lumpectomy followed by chemotherapy and then a mastectomy?
Multiplicity Counter/CS Tumor Size: The Multiplicity Counter rule 6c states "Use code 99 when the tumor is described as diffuse". Is code 99 used in all circumstances when tumor size is coded to 998? See Discussion.
Type of Multiple Tumors--Colon: How is this field coded for a case in which the patient is found to have two in situ polyps and an adenocarcinoma arising in a polyp all in the same segment of the colon? See Discussion.
MP/H rules/Histology--Lung: How is histology coded for a path diagnosis of "pleomorphic carcinoma with adenocarcinoma, squamous, clear cell and spindle components"? Please see discussion.
Multiplicity Counter/Date of Multiple Tumors/CS Tumor Size--Lung: How are these fields to be coded when work-up of a malignancy spans a couple of months and reveals developing nodules? See Discussion.
Multiplicity Counter--Prostate: How is multiplicity counter to be coded for a clinically inapparent prostate cancer for which sextant needle biopsy cores on left and right sides are positive for adenocarcinoma? See Discussion.
Multiple Primaries--Brain and CNS: How many primaries should be recorded in a patient with von Hippel Lindau disease that has a hemangioblastoma of the cerebellum in 2003 and a hemangioblastoma of the brainstem in 2007?
Reportability--Brain and CNS: In addition to Schwannoma, are there additional types of benign tumors that arise in peripheral nerves along the spinal cord that are not reportable? See Discussion.
Reportability/Primary Site--Brain and CNS: Is a chondroma, NOS or a chondroblastoma, NOS that occurs in an intracranial site or along the spinal cord reportable? See Discussion.
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