CS Extension/CS Mets at Dx--Wilm's Tumor: Is the fact that a Wilm's tumor case is bilateral captured in the CS Extension field or is the CS Mets at Dx field coded to 40?
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 Extension/CS Lymph Nodes--Lung: How are these fields coded if a lobectomy path specimen indicates that two intrapulmonary lymph nodes are involved by direct extension from the primary tumor?
CS Reg LN Pos/Exam--Melanoma: How should these fields be coded for a case that is an unknown primary site melanoma with liver involvement and a positive axillary lymph node?
CS Site Specific Factor 6--Breast: Should we assume that the invasive portion of the tumor is being referred to when a pathologist provides only a single tumor size but includes both invasive and in situ descriptors when discussing the size of that tumor? See Discussion.
CS Lymph Nodes--Melanoma: If the primary site is coded to C449 because no primary skin lesion is identified for a melanoma case, are any positive lymph nodes assumed to be regional?
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]?
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