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Report Produced: 01/18/2026 08:17 AM

Report Question ID Question
20091061 Multiplicity Counter--Head & Neck: How is this field coded when a patient has carcinoma in the same location as a previous primary but it is unknown if there was a disease-free interval? See Discussion.
20081028 Multiplicity Counter--Ill-defined sites: How is this field coded for Ill-Defined sites (C760-C768)?
20100026 Multiplicity Counter--Kidney, Renal Pelvis: How many times is this field updated after an invasive primary is originally diagnosed? Should subsequently diagnosed in situ tumors to be included in this field? See Discussion.
20091066 Multiplicity Counter--Lung: How is this field coded when there is no evidence of the primary tumor? See Discussion.
20071096 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.
20071097 Multiplicity Counter--Thyroid: How is multiplicity counter to be coded for a thyroid cancer presenting as multiple foci? See Discussion.
20081089 Multiplicity Counter--Thyroid: How is this field coded for a tumor described as "multinodular carcinoma of the thyroid"? See Discussion.
20071124 Multiplicity Counter-Breast: The general instructions say to ignore separate microscopic foci when determining when to use the single tumor or multiple tumor modules. Do these instructions apply if sizes are given for the foci? See Discussion.
20081107 Multiplicity Counter/Ambiguous terminology: How should these fields be coded for cases with an unknown date of diagnosis?
20071101 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.