Bone Invasion
Description
Bone invasion, the presence or absence of bone invasion based on imaging, is a prognostic factor for soft tissue sarcoma. Direct tumor extension from the primary sarcoma into adjacent bone. This field does not include distant or discontinuous metastases to the skeletal system. Information in this field is based on radiology and other imaging techniques.Notes
**Note 1:** **Physician Staging** * Physician statement of Bone Invasion can be used to code this data item when no other information is available. **Note 2:** **Criteria for Coding** * Record bone invasion as determined by **relevant imaging only for the primary tumor** * Imaging methodologies include computed tomography (CT) scans and magnetic resonance imaging (MRI).| Code | Description |
|---|---|
| 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 |