NAACCR Item #2872: CS Site-Specific Factor18
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NAACCR XML: Tumor.csSiteSpecificFactor18
Identifies additional information needed to generate stage, or prognostic factors that have an effect on stage or survival.
Site-specific factors are used to record additional staging information needed by Collaborative Staging to derive TNM and/or SEER Summary Stage codes for particular site-histology schema.
Codes (The information recorded in CS Site-Specific Factor18 differs for each anatomic site. See the most current version of the Collaborative Stage Data Collection System (http://cancerstaging.org),13 for rules and site-specific codes and coding structures.)