Collaborative Stage for TNM 7 - Revised 05/23/2009 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | In situ; noninvasive; intraepithelial | NA | NA | IS | IS |
| 100 | Invasive tumor confined to site of origin | NA | NA | L | L |
| 300 | Localized, NOS | NA | NA | L | L |
| 400 | More than one region of pharynx involved (oropharynx, nasopharynx, hypopharynx) | NA | NA | RE | RE |
| 500 | Pharynx and oral cavity involved | NA | NA | RE | RE |
| 550 | Any of codes 100-500 WITH fixation | NA | NA | RE | RE |
| 600 | Extension to adjacent structures (See note) | NA | NA | RE | RE |
| 800 | Further contiguous extension | NA | NA | D | D |
| 950 | No evidence of primary tumor | NA | NA | U | U |
| 999 | Unknown extension Primary tumor cannot be assessed Not documented in patient record | NA | NA | U | U |