EOD Regional Nodes
Notes
**Note 1:** **Regional nodes and nodes, NOS**
* Code only regional nodes and nodes, NOS in this field. Distant nodes are coded in EOD Mets.
**Note 2:** **Mesenteric nodes**
* The specific location of the mesenteric nodes determines whether they are regional or distant.
* If the specific location is not described, code in EOD Regional Nodes.
**Note 3:** **Porta hepatic nodes**
* Porta hepatic nodes are recorded as distant for Body and Tail and should be coded in EOD Mets.
* If the specific location for hepatic nodes is not described, code in EOD Regional Nodes.
**Note 4:** **CLINICAL AND PATHOLOGICAL codes**
* This schema has lymph node codes that are defined as **CLINICAL** assessment only or **PATHOLOGICAL** assessment only.
**No surgical resection**
* Use **CLINICAL** assessment only codes (700, 725, 775) when there is a clinical work up only and there is **NO surgical resection of the primary tumor or site** WITH
* Any microscopic examination of regional lymph nodes, which includes FNA, core biopsy, sentinel node biopsy, lymph node excision, or lymph node dissection done during the clinical work up.
**Surgical resection without neoadjuvant therapy**
* Use **PATHOLOGICAL** assessment only codes (300, 700) when there is a **surgical resection of the primary tumor or site** WITH
* Any microscopic examination of regional lymph nodes, which includes FNA, core biopsy, sentinel node biopsy, lymph node excision done or lymph node dissection performed.
**Surgical resection after neoadjuvant therapy**
* If patient has neoadjuvant therapy, and the clinical assessment is equal to or greater than the pathological assessment, then the clinical assessment codes take priority. Otherwise, code the pathologic assessment.
* See ***EOD 2018 General Instructions*** for further instructions on coding cases with neoadjuvant therapy, https://seer.cancer.gov/tools/staging/eod/.
| Code |
Description |
SS2018 N |
| 000 |
No regional lymph node involvement |
NONE |
| 300 |
**PATHOLOGICAL ASSESSMENT ONLY**
All sites
- Anterior, NOS
- Common hepatic artery
- Hepatic, NOS
- Inferior to head and body of pancreas
- Lateral aortic (lumbar)
- Pancreaticoduodenal (anterior, posterior)
- Peripancreatic, NOS
- Posterior, NOS
- Proximal mesenteric (anterior, posterior)
- Retroperitoneal
- Superior mesenteric
- Superior to head and body of pancreas
Pancreas Head (C250)
- Common bile duct (pericholedochal)
- Lateral wall (right)
- Portal vein
- Pyloric (infrapyloric, retropyloric, subpyloric, suprapyloric, NOS)
Pancreas Body and Tail (C251-C252)
- Gastroepiploic (gastro-omental, left)
- Pancreaticosplenic (pancreaticolienal)
- Splenic (artery, hilum, lineal)
- Suprapancreatic
Pancreas Other (C253-C254, C257-C259)
- Celiac
- Common bile duct (pericholedochal)
- Gastroepiploic (gastro-omental)
- Lateral wall right
- Pancreaticosplenic (pancreaticolienal)
- Portal vein
- Pyloric (infrapyloric, retropyloric, subpyloric, suprapyloric, NOS)
- Splenic (artery, hilum, lineal)
- Suprapancreatic |
RN |
| 700 |
**PATHOLOGICAL ASSESSMENT ONLY**
Pancreas Body Tail (C251, C252) (see code 300 for Pancreas Other, or EOD Mets for Pancreas Head)
- Celiac |
D |
| 725 |
**CLINICAL ASSESSMENT ONLY**
One-three positive nodes clinically OR stated as Clinical N1 |
RN |
| 775 |
**CLINICAL ASSESSMENT ONLY**
Four or more positive nodes clinically OR stated as Clinical N2 |
RN |
| 800 |
Positive nodes, number unknown
Unknown if clinical or pathological
Regional lymph node(s), NOS
Lymph node(s), NOS |
RN |
| 999 |
Unknown; regional lymph node(s) not stated
Regional lymph node(s) cannot be assessed
Not documented in medical record
Death Certificate Only |
U |
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998
(2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001.
(3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL)
(4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
(5) Kakar, S., Pawlik, T.M., Vauthey, J.N., et al. **Exocrine Pancreas**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cacer Staging Manual. 8th Ed. New York: Springer; 2017
