Notes**Note 1:** Physician statement of Bone Invasion can be used to code this data item when no other information is available. **Note 2:** 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). **Note 3:** Code 0 if relevant imaging is performed and there is no mention of bone invasion. **Note 4:** Code 9 if there is no relevant imaging of the primary site.
|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