Alternate Name Item # Length Source of Standard Implemented Year Implemented Version Retired Year Retired Version Column #
Date of Most Definitive Surgical Resection of the Primary Site
RX Date--Most Defin Surg
3170 8 CoC 2003 10 1466 - 1473
Description
Date of most definitive surgical resection of the primary site performed as part of the first course of treatment. See Chapter X for date format. Use RX DATE MST DEFN SRG FLAG [3171] if there is no appropriate or known date for this item.
 
Formerly RX Date--Most Defin Surg.
Rationale
This item is used to measure lag time between diagnosis and the most definitive surgery of the primary site or survival following the procedure. It also is used in conjunction with RX Date Surg Disch [3180] to calculate the duration of hospitalization following the most definitive primary site surgical procedure to evaluate treatment efficacy.