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 mucosa of one of the following Frontal sinus Sphenoid sinus | ERROR | NA | L | L |
| 105 | Tumor confined to mucosa of one of the following: Frontal sinus Sphenoid sinus | NA | NA | L | L |
| 300 | Localized, NOS | NA | NA | L | L |
| 320 | Tumor confined to mucosa of more than one accessory sinus | NA | NA | RE | RE |
| 330 | Tumor confined to mucosa of adjacent structure Nasal cavity, NOS: Floor Lateral wall Septum Turbinates Nasopharynx | NA | NA | RE | RE |
| 340 | Stated as T3 NOS with no other information on extension | NA | NA | L | L |
| 360 | Involvement of deep soft tissues of single accessory sinus | NA | NA | L | L |
| 365 | Involvement of deep soft tissues of single accessory sinus + Mucosal involvement of any structure in code 330 | NA | NA | RE | RE |
| 370 | Involvement of deep soft tissues of more than one accessory sinus | NA | NA | RE | RE |
| 380 | Involvement of deep soft tissues of adjacent structures in code 330 | NA | NA | RE | RE |
| 390 | Destruction of bony wall of sinus | NA | NA | RE | RE |
| 400 | OBSOLETE DATA RETAINED V0200 More than one accessory sinus invaded Destruction of bony wall of sinus | ERROR | NA | RE | RE |
| 500 | OBSOLETE DATA RETAINED V0200 Palate Nasal cavity, NOS: Floor Lateral wall Septum Turbinates | ERROR | NA | RE | RE |
| 550 | Involvement of palate | NA | NA | RE | RE |
| 600 | Bone, cartilage Facial bones Maxilla Orbital structures Pterygoid fossa Zygoma | NA | NA | RE | RE |
| 650 | Anterior orbital contents Skin of nose Skin of cheek Muscles Masseter Pterygoid | NA | NA | RE | RE |
| 700 | OBSOLETE DATA RETAINED V0200 Brain Cranial nerves Muscles: Masseter Pterygoid Nasopharynx Orbital contents, including eye Soft tissue Skin | ERROR | NA | RE | RE |
| 725 | Stated as T4a with no other information on extension | NA | NA | L | L |
| 750 | Anterior cranial fossa Cribriform plate Clivus Middle cranial fossa Skull base | NA | NA | RE | RE |
| 790 | Contiguous extension Orbital apex Dura Brain Middle cranial fossa Cranial nerves (IX, X, XI, XII) | NA | NA | RE | RE |
| 800 | OBSOLETE DATA RETAINED V0200 Further contiguous extension | ERROR | NA | D | D |
| 801 | Further contiguous extension: Brain Dura Lower cranial nerves (IX, X, XI, XIOI) Prevertebral space Mediastinal structures | NA | NA | D | D |
| 810 | Stated as T4b with no other information on extension | NA | NA | D | D |
| 815 | Stated as T4 NOS with no other information on extension | NA | 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 |