Collaborative Stage for TNM 7 - Revised 10/25/2009 [ Schema ]
| Code | Description |
| 000 | Within normal limits (S0) |
| 010 | Range 1 (S1) above normal and less than 1,000 ng/ml |
| 020 | Range 2 (S2) 1,000 -10,000 ng/ml |
| 030 | Range 3 (S3) greater than 10,000 ng/ml |
| 988 | Not applicable: Information not collected for this case |
| 997 | Test ordered, results not in chart |
| 998 | Test not done (SX) |
| 999 | Unknown or no information Not documented in patient record |