Collaborative Stage for TNM 7 - Revised 11/10/2010 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | In situ, intrapeithelial, noninvasive | NA | NA | IS | IS |
| 100 | OBSOLETE DATA RETAINED V0200 Invasive tumor confined to lamina propria (mucoperiosteum) (stroma) | ERROR | NA | L | L |
| 105 | Tumor confined to mucosa of gum | T3 | NA | L | L |
| 300 | Localized, NOS | T3 | NA | L | L |
| 400 | Extension involving mucosa only: Buccal mucosa (inner cheek) Labial mucosa (inner lip), lip Lateral pharyngeal wall Soft palate including uvula Tonsillar pillars Tonsillar fossae Tonsils | T3 | NA | RE | RE |
| 440 | OBSOLETE DATA CONVERTED V0203 See code 400 Extension via mucosa to upper lip (labial mucosa) | ERROR | ERROR | ERROR | ERROR |
| 470 | Stated as T3 with no other information on extension | T3 | NA | L | L |
| 500 | OBSOLETE DATA RETAINED V0200 Buccal mucosa (inner cheek) Labial mucosa (inner lip), lip | ERROR | NA | RE | RE |
| 510 | Involvement of deep tissue or periosteum of gum | T4a | NA | L | L |
| 520 | 510 + 400 Involvement of deep tissue of gum plus mucosal involvement of any structure in code 400 | T4a | NA | RE | RE |
| 530 | Involvement of deep soft tissue or musculature of any structure in code 400 | T4a | NA | RE | RE |
| 550 | Facial muscle, NOS Subcutaneous soft tissue of face | T4a | NA | RE | RE |
| 600 | OBSOLETE DATA RETAINED V0200 Lateral pharyngeal wall (tonsillar pillars and fossae, tonsils) | ERROR | NA | RE | RE |
| 700 | Cartilage of mandible or maxilla Cortical bone of mandible or maxilla Mandible, NOS Maxilla, NOS Cartilage, NOS Cortical bone, NOS Bone, NOS except base of skull | T4a | NA | RE | RE |
| 720 | Extrinsic muscle of tongue: Genioglossus Hyoglossus Palatoglossus Styloglossus | T4a | NA | RE | RE |
| 760 | Skin of face | T4a | NA | D | D |
| 765 | Maxillary sinus (antrum) | T4a | NA | D | D |
| 770 | OBSOLETE DATA REVIEWED AND CHANGED V0203 See codes 700, 765 Cartilage of maxilla Cortical bone of maxilla Maxilla NOS Maxillary sinus | ERROR | ERROR | ERROR | ERROR |
| 775 | Stated as T4a with no other information on extension | T4a | NA | L | L |
| 790 | OBSOLETE DATA CONVERTED V0200 See Code 800 Skull | ERROR | ERROR | ERROR | ERROR |
| 800 | Contiguous extension: Base of skull Carotid artery (encased) Masticator space Pterygoid plates | T4b | NA | D | D |
| 801 | Further contiguous extension including: Brain Dura Lower cranial nerves (IX, X, XI, XII) Mediastinal structures Prevertebral space Mediastinal structures | T4b | NA | D | D |
| 810 | Stated as T4b with no other information on extension | T4b | NA | D | D |
| 815 | Stated as T4 [NOS] with no other information on extension | T4NOS | NA | L | L |
| 950 | OBSOLETE DATA RETAINED V0200 No evidence of primary tumor | ERROR | NA | U | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record | NA | NA | U | U |