NAACCR Item #3815: Bone Invasion
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired | 
|---|---|---|---|---|---|---|
| 3815 | 1 | NAACCR | 2018 | 18 | 
            NAACCR XML:
            
                
                    Tumor.boneInvasion
                
            
        
        
        Description
            Bone invasion, the presence or absence of bone invasion based on imaging, is a prognostic factor for soft tissue sarcomas.
        Rationale
                Bone Invasion is a Registry Data Collection Variable in AJCC. This data item was previously collected for Soft Tissue, SSF# 3.
            Codes
                | 0 | Bone invasion not present/not identified on imaging | 
| 1 | Bone invasion present/identified on imaging | 
| 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 Bone invasion not assessed or unknown if assessed | 
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.