CS Tumor Size--Melanoma: How is this field coded when a smaller invasive and a larger in situ melanoma are reported as a single primary? See Discussion.
CS Tumor Size--Unknown & ill-defined site: For an unknown primary site, should this field be coded to 000 [No mass/tumor found] or 999 [Unknown; size not stated; not stated in patient record]?
CS Tumor Size/CS Eval--Breast: How are these fields coded when there is a clinical size recorded but the tumor size is not specified on the pathology report associated with a subsequent resection? See Discussion.
CS Tumor Size/CS Extension--Brain and CNS: How are these fields coded for a glioblastoma multiforme occurring in a 3.5 cm tumor in the parietal lobe and a 3.0 cm tumor in the occipital lobe?
CS Tumor Size/CS Extension--Prostate: Because prostatectomy results are excluded from the CS Extension field for prostate, is code 95 [No evidence of primary tumor] accurate to reflect bilateral lobe involvement of prostate cancer when it is incidentally found following a radical cystectomy for a bladder primary? Why must tumor size be 000 when the CS Extension code is 95?
CS Tumor Size/CS Extension/CS Lymph Nodes--Lung: How are these fields coded when there is no description of a primary lung tumor, lymph node biopsies are negative, but biopsy of a "level 7 mass" is positive for squamous cell carcinoma? See Discussion.