The site of the metastatic disease.
National Codes:
| 01 | Bone (Retired 1 July 2012) | 
| 02 | Brain | 
| 03 | Liver | 
| 04 | Lung | 
| 05 | Other metastatic site (Retired 1 July 2012) | 
| 06 | Multiple metastatic sites (Retired 1 April 2018) | 
| 07 | Unknown metastatic site | 
| 08 | Skin | 
| 09 | Distant Lymph Nodes | 
| 10 | Bone (excluding Bone Marrow) | 
| 11 | Bone marrow | 
| 12 | Regional Lymph Nodes | 
| 98 | Other metastatic site (not listed) | 
| 99 | Other metastatic site (Retired 1 April 2018) | 
This attribute is also known by these names:
| Context | Alias | 
|---|---|
| plural | METASTATIC SITES |