Collaborative Stage Data Set - Revised 11/08/2010 FINAL
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | In situ, intraepithelial, noninvasive | NA | NA | IS | IS |
| 100 | OBSOLETE DATA RETAINED V0200 Invasive tumor on one side confined to: Lamina propria Submucosa | ERROR | NA | L | L |
| 105 | OBSOLETE DATA REVIEWED V0203 See codes 110, 405 Tumor confined to mucosa of anterior tongue: Tumor confined to one side Midline tumor Tumor crosses midline | T3 | NA | L | L |
| 110 | Tumor involving mucosa only of anterior tongue: Confined to one side Midline tumor | T3 | NA | L | L |
| 200 | OBSOLETE DATA RETAINED V0200 Musculature, intrinsic or NOS | ERROR | NA | L | L |
| 300 | OBSOLETE DATA RETAINED V0200 Localized, NOS Midline tumor | ERROR | NA | L | L |
| 305 | Localized, NOS | T3 | NA | L | L |
| 310 | OBSOLETE DATA CONVERTED V0203 See code 110 Midline tumor confined to mucosa | ERROR | ERROR | ERROR | ERROR |
| 400 | OBSOLETE DATA RETAINED V0200 Tumor crosses midline | ERROR | NA | L | L |
| 405 | Extension involving mucosa only across midline of tongue | T3 | NA | L | L |
| 410 | Extension involving mucosa only: Base of tongue Floor of mouth Gingiva, lower Retromolar trigone | T3 | NA | RE | RE |
| 420 | Extension involving mucosa only: Lateral pharyngeal wall Soft palate, inferior surface Tonsillar pillars and fossae Tonsils | T3 | NA | D | RE |
| 440 | Stated as T3 with no other information on extension | T3 | NA | L | L |
| 500 | OBSOLETE DATA RETAINED V0200 Base of tongue Floor of mouth Gingiva, lower Retromolar trigone | ERROR | NA | RE | RE |
| 520 | Involvement of deep soft tissue or musculature of tongue Soft tissue, NOS | T4a | NA | L | L |
| 530 | Sublingual gland | T4a | NA | RE | RE |
| 540 | 520 + 500 Involvement of deep soft tissue or musculature of tongue plus mucosal involvement of any structure in code 410 | T4a | NA | RE | RE |
| 550 | Involvement of deep soft tissue or musculature of any structure in code 410 | T4a | NA | RE | RE |
| 560 | (520 - 550) + 420 Involvement of any structure in codes 520 - 550 plus mucosal involvement of any structure in code 420 | T4a | NA | D | RE |
| 570 | Involvement of deep soft tissue or musculature of any structure in code 420 | T4a | NA | D | RE |
| 600 | OBSOLETE DATA RETAINED V0200 Lateral pharyngeal wall Soft palate, inferior surface Tonsillar pillars and fossae Tonsils | ERROR | NA | D | RE |
| 700 | Cartilage of mandible Cortical bone of mandible Mandible, NOS Cartilage, NOS Cortical bone, NOS Bone, NOS excluding maxilla and base of skull base | T4a | NA | RE | D |
| 710 | 700 + (560 or 570) Involvement of any structure in code 700 plus any structure in code 560 or 570 | T4a | NA | D | D |
| 720 | OBSOLETE DATA RETAINED V0200 (600) + (700) | ERROR | NA | D | D |
| 740 | OBSOLETE DATA CONVERTED V0200 See code 770 Maxilla Maxillary sinus | ERROR | ERROR | ERROR | ERROR |
| 750 | Musculature of tongue, extrinsic: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus | T4a | NA | D | D |
| 760 | Skin of face | T4a | NA | D | D |
| 770 | Cartilage of maxilla Cortical bone of maxilla Maxilla, NOS Maxillary sinus (antrum) | T4a | NA | D | D |
| 775 | Stated as T4a with no other information on extension | T4a | NA | L | L |
| 790 | Contiguous extension: Base of skull Carotid artery (encased) Masticator space Pterygoid plates | T4b | NA | D | D |
| 800 | OBSOLETE DATA RETAINED V0200 Further contiguous extension | ERROR | NA | D | D |
| 801 | Further contiguous extension including: Brain Dura Lower cranial nerves (IX, X, XI, XII) Mediastinal structures Prevertebral space | 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 |