CS Lymph Nodes
Notes
**Note 1**: Code only regional nodes and nodes, NOS in this field. Distant nodes are coded in CS Mets at DX. **Note 2**: Regional lymph nodes are defined as those in the vicinity of the primary tumor. **Note 3**: Regional lymph node involvement is rare. For this schema, if there is no mention of lymph node involvement clinically, assume that lymph nodes are negative. Use code 999 (Unknown) only when there is no available information on the extent of the patient's disease, for example when a lab-only case is abstracted from a biopsy report and no clinical history is available. **Note 4**: For head, neck, and trunk primaries only, regional lymph nodes include bilateral or contralateral nodes.| Code | Description | AJCC 7 N | TNM 6 N | Summary Stage 1977 N | Summary Stage 2000 N |
|---|---|---|---|---|---|
| 000 | No regional lymph node involvement | N0 | N0 | NONE | NONE |
| 100 | Regional lymph nodes by primary site: All Head and Neck Subsites: Cervical Lip: Facial, NOS: Buccinator (buccal) Nasolabial Mandibular Submandibular (submaxillary) Submental Parotid, NOS: Infra-auricular Preauricular Eyelid/canthus: Facial, NOS: Buccinator (buccal) Nasolabial Mandibular: Submandibular (submaxillary) Submental Parotid, NOS: Infra-auricular External ear and auditory canal: Mastoid (posterior, retro-auricular) (occipital) Preauricular Face, Other (cheek, chin, forehead, jaw, nose, and temple): Facial, NOS: Buccinator (buccal) Nasolabial Mandibular: Submandibular (submaxillary) Submental Parotid, NOS: Infra-auricular Preauricular Scalp: Mastoid (posterior, retro-auricular) (occipital) Parotid, NOS: Infra-auricular Preauricular Spinal accessory (posterior cervical) Neck: Axillary Mastoid (posterior, retro-auricular) (occipital) Mandibular Parotid, NOS: Infra-auricular Preauricular Spinal accessory (posterior cervical) Supraclavicular (transverse cervical) Arm/shoulder: Axillary Spinal accessory for shoulder Epitrochlear for hand/forearm Leg/hip: Femoral (superficial inguinal) Popliteal for heel and calf Thorax: Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Mediastinal Abdomen: Celiac Iliac Para-aortic Pelvis: Deep inguinal, NOS: Rosenmuller or Cloquet node Superficial inguinal (femoral) Upper trunk: Axillary Cervical Internal mammary Supraclavicular (transverse cervical) Lower trunk: Superficial inguinal (femoral) All sites: Regional lymph node(s), NOS Stated as N1 with no other information on regional lymph nodes |
N1 | N1 | RN | RN |
| 120 | Submental nodes for neck primary only (Including bilateral or contralateral nodes) |
N1 | N1 | D | RN |
| 150 | Neck primary only: 120 + 100 |
N1 | N1 | D | RN |
| 800 | Lymph nodes, NOS | N1 | N1 | RN | RN |
| 999 | Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record (See Note 3) |
NX | NX | U | U |