Clinical N

This input is used for staging

Notes

**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Note 2:** Assign N1 if regional lymph nodes are involved but there is no indication of the number of nodes involved. **Regional lymph nodes for appendix** Celiac Anterior (prececal) Ileocolic Posterior (retrocecal) Right colic Colic, NOS Epicolic (adjacent to bowel wall) Mesenteric, NOS Mesocolic, NOS Paracolic/pericolic Regional lymph nodes, NOS Lymph nodes, NOS

NAACCR Item

NAACCR #950
Clinical N Clinical N Display Description Registrar Notes
cX cNX Regional lymph nodes cannot be assessed Clinical classification criteria met, evaluation done:
Physician unable to assess N
Regional lymph node involvement cannot be determined or findings inconclusive
Physician assigns cNX, no other information available to determine N
c0 cN0 No regional lymph node metastasis
c1 cN1 Metastasis in 1-3 regional lymph nodes Stated as N1
c2 cN2 Metastasis in 4 or more regional lymph nodes Stated as N2
88 88 Not applicable Primary site/histology not TNM defined
Death certificate only (DCO) case
<BLANK> BLANK See Registrar Notes Clinical classification criteria not met
Clinical classification criteria met, evaluation done:
No information about diagnostic workup
Results not documented in record
Tumor first detected on surgical resection (no clinical workup)
Evidence of metastatic disease [(cM1) or (pM1)], no other workup
Only Clinical Stage Group documented (no T, N, or M information available)