The nature of the specimen taken during a Clinical Investigation.
National Codes:
| 1 | Primary Tumour |
| 2 | Further excision of primary Tumour |
| 3 | Recurrence (Retired 1 January 2013) |
| 4 | Regional Lymph Nodes |
| 5 | Metastatic site other than regional Lymph Nodes |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| formerly | SPECIMEN NATURE |
| plural | CANCER SPECIMEN NATURES |