Derived Summary Stage 2018: Skin (except Eyelid)

Derived Summary Stage 2018

Default

9

NAACCR Item

NAACCR #762
SS2018 Description
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