Data Last Updated: June 9, 2025

NAACCR Item #3886: Major Vein Involvement

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
3886 1 NAACCR Stage/Prognostic Factors 2018 18 majorVeinInvolvement Tumor
Required Status:

NPCR Collect: No recommendation
CoC Collect: Required, site specific
SEER Collect: Required, site specific
CCCR Collect: No recommendation

Description
Major vein involvement pertains to the invasion of the kidney tumor into major veins.
Rationale
Involvement of major veins for Kidney is a Registry Data Collection Variable in AJCC. It was previously collected as Kidney, CS SSF #2.
Allowable Values
0-4, 8, 9
Codes
Code Description
0 Major vein involvement not present/not identified
1 Renal vein or its segmental branches
2 Inferior vena cava (IVC)
3 Major vein invasion, NOS
4 Any combination of codes 1-3
8 Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 8 may result in an edit error.)
9 Not documented in medical record Vein involvement not assessed or unknown if assessed No surgical resection of primary site is performed
Code Notes
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.