Collaborative Stage Data Set - Revised 05/13/2011 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 confined to one of the following subsites: Anterior wall (including vallecula and lingual (anterior) surface of epiglottis) One lateral wall Posterior wall | ERROR | NA | L | L |
| 105 | Tumor confined to mucosa of one of the following subsites: Anterior wall: Lingual (anterior surface of epiglottis) Vallecula One lateral wall Posterior wall | T3 | NA | L | L |
| 200 | OBSOLETE DATA RETAINED V0200 Involvement of two or more subsites: Posterior, anterior or lateral wall(s) | ERROR | NA | L | L |
| 205 | Involvement of mucosa only of two or more subsites: Anterior wall: Lingual (anterior) surface of epiglottis Vallecula Lateral wall(s) Posterior wall | T3 | NA | L | L |
| 300 | Localized, NOS | T3 | NA | L | L |
| 400 | OBSOLETE DATA RETAINED V0200 Soft palate, inferior surface including uvula, or soft palate, NOS | ERROR | NA | RE | RE |
| 405 | Involvement of mucosa only: Soft palate, inferior surface, including uvula Soft palate, NOS | T3 | NA | RE | RE |
| 410 | OBSOLETE DATA RETAINED V0200 Hypopharynx NOS Pyriform sinus | ERROR | NA | RE | RE |
| 415 | Involvement of mucosa only: Hypopharynx, NOS Pyriform sinus | T3 | NA | RE | RE |
| 420 | OBSOLETE DATA RETAINED V0200 Soft palate, superior (nasopharyngeal) surface | ERROR | NA | RE | RE |
| 425 | Involvement of mucosa only of soft palate, superior (nasopharyngeal) surface | T3 | NA | RE | RE |
| 430 | Involvement of mucosa only: Nasopharynx Larynx Posterior surface of epiglottis | T3 | NA | RE | RE |
| 500 | OBSOLETE DATA RETAINED V0200 Base of tongue Buccal mucosa (inner cheek) Floor of mouth Gum (gingiva) | ERROR | NA | RE | RE |
| 505 | Involvement of mucosa only: Base of tongue Buccal mucosa (inner cheek) Floor of mouth Gum (gingiva) | T3 | NA | RE | RE |
| 510 | Involvement of mucosa only of both lateral walls through soft palate or base of tongue | T3 | NA | D | RE |
| 515 | Involvement of mucosa only: Anterior two-thirds of tongue Hard palate | T3 | NA | D | D |
| 520 | Stated as T3 with no other information on extension | T3 | NA | L | L |
| 540 | Involvement of deep soft tissue or musculature of any structure in code 105 | T4a | NA | L | L |
| 545 | 540 + (405, 415, 425, 430, or 505) Involvement of deep soft tissue or musculature of any structure in code 105 plus mucosal involvement of any structure in code 405, 415, 425, 430, or 505 | T4a | NA | RE | RE |
| 550 | Any extension coded in 105 - 505 WITH fixation | T4a | NA | RE | RE |
| 555 | Involvement of deep soft tissue or musculature of any structure in codes 405, 415, 425, 430, and 505 | T4a | NA | RE | RE |
| 560 | (540 - 555) + 510 Any involvement in codes 540 - 555 plus mucosal involvement of the structures in code 510 | T4a | NA | D | RE |
| 565 | (540 - 560) + 515 Any involvement in codes 540 - 560 plus mucosal involvement of hard palate | T4a | NA | D | D |
| 570 | Involvement of deep soft tissue or musculature of both lateral walls, soft palate, or base of tongue with contiguous involvement through all four sites | T4a | NA | D | RE |
| 575 | 570 + 515 Involvement in 570 plus mucosal involvement of anterior tongue or hard palate | T4a | NA | D | D |
| 600 | OBSOLETE DATA RETAINED V0200 Prevertebral fascia or muscle Soft tissue of neck | ERROR | NA | RE | RE |
| 610 | Soft tissue of neck, NOS | T4a | NA | RE | RE |
| 620 | OBSOLETE DATA RETAINED V0200 Nasopharynx, lateral, or NOS | ERROR | NA | RE | RE |
| 650 | OBSOLETE DATA RETAINED V0200 Larynx, NOS Medial pterygoid muscle, or pterygoid muscle, NOS Posterior surface of epiglottis | ERROR | NA | RE | RE |
| 670 | Maxilla Maxillary sinus (antrum) Nasal cavity Medial pterygoid muscle, Pterygoid muscle, NOS | T4a | NA | RE | RE |
| 675 | (610 or 670) + (510, 560, or 570) Involvement of any structure in codes 610 or 670 plus any involvement of both lateral walls through soft palate or base of tongue | T4a | NA | D | RE |
| 678 | (610,670, or 675) + (515, 565, 575) Involvement of any structure in codes 610, 670, and 675 plus mucosal involvement of anterior tongue or hard palate | T4a | NA | D | D |
| 680 | Deep extrinsic muscles of tongue: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus Parotid Gland | T4a | NA | D | D |
| 685 | Deep soft tissue or musculature of anterior tongue Deep tissue or periosteum of hard palate | T4a | NA | D | D |
| 690 | Bone excluding base of skull Lateral pterygoid muscle Overlying skin Palatine bone Pterygoid plates Cartilage, NOS Bone, NOS | T4a | NA | D | D |
| 700 | OBSOLETE DATA RETAINED V0200 Deep extrinsic muscles of tongue: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus Hard palate Mandible | ERROR | NA | D | D |
| 705 | Stated as T4a with no other information on extension | T4a | NA | L | L |
| 710 | Prevertebral fascia/muscle | T4b | NA | RE | RE |
| 715 | 710 + (510, 560, 670, 675, or 678) Prevertebral fascia/muscle plus any involvement of both lateral walls through soft palate or base of tongue | T4b | NA | D | RE |
| 718 | 710 + (515, 565, 575, 680, 685, or 690) Prevertebral fascia/muscle plus involvement of any structure in codes 680 and 690 or any involvement of anterior tongue or hard palate | T4b | NA | D | D |
| 720 | OBSOLETE DATA CONVERTED V0200 See code 690 Lateral pterygoid muscle Pterygoid plates | ERROR | ERROR | ERROR | ERROR |
| 750 | Base of skull Bone of skull | T4b | NA | D | D |
| 760 | OBSOLETE DATA CONVERTED V0200 See code 690 Bone | ERROR | ERROR | ERROR | ERROR |
| 770 | Carotid artery (encased) | T4b | NA | D | D |
| 790 | Contiguous extension: Mediastinal structures | T4b | NA | D | D |
| 800 | OBSOLETE DATA RETAINED V0200 Further contiguous extension: Anterior 2/3 of tongue Parotid gland | ERROR | NA | D | D |
| 801 | Further contiguous extension including: Brain Dura Lower cranial nerves (IX, X, XI, XII) Masticator 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 |