0 |
In situ: noninvasive, intraepithelial |
1 |
Localized only (localized, NOS)
- Confined to gland/duct of origin
- Confined to parotid gland, NOS
- Confined to salivary gland, NOS
- Confined to submandibular gland, NOS
- Multiple foci confined to substance of parotid gland |
2 |
Regional by direct extension only
- Extension to another major salivary gland (parotid, sublingual, submandibular, submaxillary)
- Deep extrinsic muscles (submandibular gland only)
+ Genioglossus
+ Geniohyoid
+ Hyoglossus
+ Mylohyoid
+ Styloglossus
- Ear canal
- External auditory meatus (parotid gland only)
- Facial artery or vein
- Internal carotid artery (encased)
- Jugular vein (parotid gland only)
- Mandible
- Masseter (parotid gland only)
- Mastoid/mastoid process (parotid gland only)
- Maxillary artery
- Nerves
+ Auricular (parotid gland only)
+ Facial (7th nerve) (submandibular and salivary gland only)
+ Lingual (submandibular and salivary gland only)
- Periglandular soft/connective tissue (microscopic, macroscopic, NOS)
- Periosteum of mandible
- Maxillary artery
- Pharyngeal mucosa (parotid gland only)
- Skeletal muscle
+ Digastric
+ Masseter (parotid gland only)
+ Pterygoid
+ Sternocleidomastoid (parotid gland only)
+ Stylohyoid
- Skin overlying gland (parotid gland only) |
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 sites (including further contiguous extension)
+ External auditory meatus (submandibular and salivary gland only)
+ Nerves
* Facial (7th nerve) (parotid gland only)
* Lingual (parotid gland only)
+ Pterygoid plates
+ Skin overlying gland (submandibular and salivary gland only)
+ Skull (base, NOS)
+ Spinal accessory nerve
- Distant lymph node(s), NOS
+ Mediastinal (excluding superior mediastinal node(s), Level VII)
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant mets WITH or WITHOUT distant lymph node(s) |
9 |
Unknown if extension or metastasis |