Collaborative Stage for TNM 7 - Revised 01/04/2010 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | In situ; noninvasive; intraepithelial | NA | NA | IS | IS |
| 100 | OBSOLETE DATA RETAINED V0200 Invasive tumor confined to: Lamina propria Submucosa | ERROR | NA | L | L |
| 105 | Tumor confined to mucosa | T3 | NA | L | L |
| 300 | Localized, NOS | T3 | NA | L | L |
| 400 | OBSOLETE DATA RETAINED V0200 Tumor crosses midline | ERROR | NA | L | L |
| 405 | Tumor confined to mucosa crossing midline | T3 | NA | L | L |
| 450 | Extension via mucosa to: Anterior 2/3 of tongue Gingiva (alveolar ridge), lower Base of tongue Epiglottis Glossoepiglottic fold Glossopharyngeal sulcus Lateral pharyngeal wall Pharyngeal (lingual) surface Pharyngoepiglottic fold Tonsillar pillars and fossae Tonsils Vallecula | T3 | NA | RE | RE |
| 460 | Stated as T3 with no other information on extension | T3 | NA | L | L |
| 500 | OBSOLETE DATA RETAINED V0200 Anterior 2/3 of tongue Base of tongue Gingiva (alveolar ridge), lower | ERROR | NA | RE | RE |
| 510 | Involvement of deep soft tissue or musculature of structures in code 105 or 405 Soft tissue NOS | T4a | NA | L | L |
| 520 | 510 + 450 (Involvement of deep soft tissue or musculature of structures in code 105 or 405 + Mucosal involvement of structures in code 450) | T4a | NA | RE | RE |
| 530 | Sublingual gland, including ducts Submandibular (submaxillary) glands, including ducts | T4a | NA | RE | RE |
| 600 | OBSOLETE DATA RETAINED V0200 Epiglottis Glossoepiglottic fold Glossopharyngeal sulcus Lateral pharyngeal wall Pharyngeal (lingual) surface Pharyngoepiglottic fold Tonsillar pillars and fossae Tonsils Vallecula | ERROR | NA | RE | RE |
| 620 | Extension to deep extrinsic muscle of tongue: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus | T4a | NA | L | L |
| 625 | 620 + 450 (Any structure in code 620 with mucosal involvement of any structure in code 450) | T4a | NA | RE | RE |
| 628 | 620 + 530 (Any structure in code 620 with involvement of any structure in code 530) | T4a | NA | RE | RE |
| 630 | OBSOLETE DATA RETAINED V0200 620 + any of (500, 530, or 600) | ERROR | NA | RE | RE |
| 635 | Involvement of deep soft tissue or musculature of any structure in code 450 | T4a | NA | RE | RE |
| 640 | OBSOLETE DATA CONVERTED V0200 See code 740 Subcutaneous soft tissue of chin/neck | ERROR | ERROR | ERROR | ERROR |
| 700 | Cortical bone: Mandible Maxilla Cartilage: Mandible Maxilla Mandible NOS Maxilla NOS Bone NOS excluding skull base Cartilage NOS | T4a | NA | RE | RE |
| 740 | Subcutaneous soft tissue of chin/neck | T4a | NA | RE | RE |
| 760 | Skin of undersurface of chin/neck | T4a | NA | RE | RE |
| 770 | OBSOLETE DATA CONVERTED V0200 See code 700 Further contiguous extension: Maxillary sinus | ERROR | ERROR | ERROR | ERROR |
| 775 | Stated as T4a with no other information on extension | T4a | NA | L | L |
| 800 | Contiguous extension: Skull base Masticator space Pterygoid plates Internal carotid artery (encased) | T4b | NA | D | D |
| 801 | Further contiguous extension: Brain Dura Lower cranial nerves (IX, X, XI, XII) Prevertebral space Mediastinal structures | T4b | NA | D | D |
| 810 | Stated as T4b with no further 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 Primary tumor cannot be assessed Not documented in patient record | NA | NA | U | U |