| 0 |
In situ: noninvasive, intraepithelial |
| 1 |
Localized only (localized, NOS)
- Confined to anterior tongue, NOS
- Crosses midline/midline tumor
- Invasive tumor on one side confined to
+ Lamina propria
+ Musculature of tongue, intrinsic or NOS
+ Submucosa |
| 2 |
Regional by direct extension only
- Base of tongue
- Bone, NOS
+ Bone (mandible, maxilla, palatine)
+ Cartilage (mandible, maxilla, NOS)
+ Cortical bone, invasion of (mandible, maxilla, NOS)
- Floor of mouth
- Gingiva, lower
- Lateral pharyngeal wall
- Retromolar trigone
- Soft palate, inferior surface
- Sublingual gland
- Tonsillar pillars and fossae
- Tonsils |
| 3 |
Regional lymph node(s) involved only
- Level I
+ Level IA - Submental
+ Level IB - Submandibular (submaxillary), sublingual
- Level II - Upper jugular
+ Jugulodigastric (subdigastric)
+ Upper deep cervical
+ Level IIA - Anterior
+ Level IIB - Posterior
- Level III - Middle jugular
+ Middle deep cervical
- Level IV - Lower jugular
+ Jugulo-omohyoid (supraomohyoid)
+ Lower deep cervical
+ Virchow node
- Level V - Posterior triangle group
+ Posterior cervical
+ Level VA - Spinal accessory
+ Level VB - Transverse cervical, supraclavicular
- Level VI - Anterior compartment group
+ Laterotracheal
+ Paralaryngeal
+ Paratracheal - above suprasternal notch
+ Perithyroidal
+ Precricoid (Delphian)
+ Prelaryngeal
+ Pretracheal - above suprasternal notch
+ Recurrent laryngeal
- Level VII - Superior mediastinal group (for other mediastinal node(s) see code 7)
+ Esophageal groove
+ Paratracheal - below suprasternal notch
+ Pretracheal - below suprasternal notch
- Other groups
+ Cervical, NOS
+ Deep cervical, NOS
+ Facial
* Buccinator (buccal)
* Mandibular
* Nasolabial
+ Internal jugular, NOS
+ Parapharyngeal
+ Parotid
* Infraauricular
* Intraparotid
* Periparotid
* Preauricular
+ Retroauricular (mastoid)
+ Retropharyngeal
+ Suboccipital
- Regional lymph node(s), NOS
+ Lymph node(s), NOS |
| 4 |
Regional by BOTH direct extension AND regional lymph node(s) involved
- Codes (2) + (3) |
| 7 |
Distant site(s)/lymph node(s) involved
- Distant site(s) (including further contiguous extension)
+ Deep (extrinsic) muscles of tongue
* Genioglossus
* Geniohyoid
* Hyoglossus
* Mylohyoid
* Palatoglossus
* Styloglossus
+ Internal carotid artery (encased)
+ Masticator space
+ Maxillary sinus (antrum)
+ Pterygoid plates
+ Skin of face
+ Skull base
+ Specified bone (other than mandible, maxilla)
+ Trabecular bone (mandible, maxilla, NOS)
- Distant lymph node(s), NOS
+ Mediastinal (excluding superior mediastinal node(s), Level VII)
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 9 |
Unknown if extension or metastasis |
