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 with normal vocal cord mobility confined to subglottis | ERROR | NA | L | L |
| 105 | Tumor confined to mucosa of subglottis with normal vocal cord mobility | T3 | NA | L | L |
| 200 | Tumor involves mucosa of adjacent region(s) or larynx with normal vocal cord mobility Supraglottis Glottis | T3 | NA | L | L |
| 300 | OBSOLETE DATA RETAINED V0200 Tumor involves adjacent regions(s) of larynx Vocal cords with normal or impaired mobility | ERROR | NA | L | L |
| 310 | Localized NOS | T3 | NA | L | L |
| 315 | Involvement of mucosa of adjacent regions: Base of tongue Hypopharynx, NOS Pre-epiglottic tissues Postcricoid area Pyriform sinus Vallecula | T3 | NA | RE | RE |
| 320 | Stated as T3 NOS with no other information on extension | T3 | NA | L | L |
| 340 | Involvement of deep tissues of any structure in code 105 or 200 | T4a | NA | L | L |
| 345 | Involvement of any structures in code 105 or 200 with impaired vocal cord mobility | T4a | NA | L | L |
| 400 | Tumor limited to larynx WITH vocal cord fixation | T4a | NA | L | L |
| 450 | OBSOLETE DATA RETAINED V0200 Localized, NOS | ERROR | NA | L | L |
| 460 | (340, 345, 400) + 315 (Involvement of any structures in codes 340, 345, or 400 + Involvement of any structure in code 315) | T4a | NA | RE | RE |
| 500 | Involvement of deep soft tissues or musculature of any structure in code 315 without or without vocal cord impairment or fixation of larynx or NOS | T4a | NA | RE | RE |
| 600 | OBSOLETE DATA RETAINED V0200 Base of tongue Hypopharynx, NOS Postcricoid area Pre-epiglottic tissues Pyriform sinus (pyriform fossa) Vallecula | ERROR | NA | RE | RE |
| 680 | Extension to/through cricoid cartilage and thyroid cartilage | T4a | NA | RE | D |
| 700 | Extension to/through: Cervical esophagus Deep muscle of tongue (Strap) muscles Omohyoid Sternohyoid Sternothyroid Thyrohyoid Oropharynx Skin Soft tissues of neck Thyroid gland Trachea | T4a | NA | D | D |
| 730 | OBSOLETE DATA RETAINED V0200 Contiguous extension to other tissues beyond larynx not specified in codes 700 or 800 | ERROR | NA | D | D |
| 775 | Stated as T4a with no other information on extension | T4a | NA | L | L |
| 800 | Further contiguous extension Mediastinal structures Prevertebral space Carotid artery (encased) | T4b | NA | D | D |
| 801 | Further contiguous extension including: Brain Dura Skull base 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 | D | D |
| 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 |