| 0 |
In situ, intraepidermal, intraepithelial, noninvasive
- Carcinoma in situ |
| 1 |
Localized only (localized, NOS)
- Lesion(s) confined to dermis
- Subcutaneous tissue (through entire dermis) |
| 2 |
Regional by direct extension only
- All Sites
+ Bone
+ Cartilage
+ Skeletal muscle
+ Underlying cartilage
- Head and Neck skin primaries only (C000-C002, C006, C440, C442-C444)
+ Bone erosion (minor or NOS)
+ Deep invasion
+ Gross cortical bone/marrow
+ Mandible
+ Maxilla
+ Orbital bone
+ Perineural invasion
+ Skull base foramen
+ Skull base invasion
+ Temporal bone |
| 3 |
Regional lymph node(s) involved only
- All sites (Single, Multiple, Ipsilateral) (See Code 7 for contralateral or bilateral nodes (except for head and neck skin primaries))
+ Regional lymph node(s), NOS
* Lymph node(s), NOS
- Head and Neck skin primaries only (C000-C002, C006, C440, C442-C444) (includes contralateral and bilateral nodes)
+ Levels I-VII
+ Axillary (neck only, C444)
+ Cervical, NOS
+ Deep cervical, NOS
+ Facial (buccinator, buccal, nasolabial)
+ Internal jugular, NOS
+ Parapharyngeal
+ Parotid (infraauricular, intraparotid, periparotid, preauricular)
+ Retroauricular (mastoid)
+ Retropharyngeal
+ Suboccipital
- Skin of trunk (C445)
+ Upper trunk
* Axillary
* Cervical
* Internal mammary
* Supraclavicular
+ Lower trunk
* Superficial inguinal (femoral) (lower trunk only)
- Skin of upper limb and shoulder (C446)
+ Axillary
+ Cervical
+ Epitrochlear for hand/forearm
+ Internal mammary (parasternal)
+ Spinal accessory for shoulder
+ Supraclavicular (transverse cervical)
- Skin of lower limb and hip (C447)
+ Femoral (superficial inguinal)
+ Inguinal
+ Popliteal for heel and calf |
| 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)
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 9 |
Unknown if extension or metastasis |
