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**: Inferior phrenic nodes are classified as regional nodes for AJCC 7 staging.| 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: Hepatic, NOS: Hepatic artery Hepatic pedicle Inferior vena cava Porta hepatis (hilar) (in hilus of liver) Hepatoduodenal ligament Periportal Portal vein Regional lymph node(s), NOS |
N1 | N1 | RN | RN |
| 200 | Inferior phrenic nodes | N1 | N0 | D | D |
| 300 | 200 + 100 | N1 | N1 | D | D |
| 350 | Stated as N1 with no other information on regional lymph nodes | N1 | N1 | RN | RN |
| 800 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 350, 805 Lymph nodes, NOS Stated as N1 [NOS] |
N1 | N1 | RN | RN |
| 805 | Lymph nodes, NOS | N1 | N1 | RN | RN |
| 999 | Unknown; regional lymph nodes not stated Regional lymph node(s) cannot be assessed Not documented in patient record |
NX | NX | U | U |