NAACCR Item #3815: Bone Invasion

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
3,815 1 NAACCR 2018 18

NAACCR XML: Tumor.boneInvasion


Bone invasion, the presence or absence of bone invasion based on imaging, is a prognostic factor for soft tissue sarcomas.


Bone Invasion is a Registry Data Collection Variable in AJCC. This data item was previously collected for Soft Tissue, SSF# 3.


0Bone invasion not present/not identified on imaging
1Bone invasion present/identified on imaging
8Not 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.)
9Not documented in medical record Bone invasion not assessed or unknown if assessed

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.