NAACCR Item #2910: CS Site-Specific Factor 4
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 2910 | 3 | AJCC | 2003 | 10 |
NAACCR XML:
Tumor.csSiteSpecificFactor4
Description
Identifies additional information needed to generate stage, or prognostic factors that have an effect on stage or survival.
Rationale
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.