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:** Regional nodes include bilateral and contralateral involvement of named nodes. **Note 3:** Size of the largest metastasis in a lymph node must be known to assign N. You may use a physician’s statement of the N category if this is the only information in the medical record. * If the size of the metastasis is not documented, determine the size of the largest involved lymph node as documented clinically * If the size of the lymph node(s) cannot be determined, assign N1 * Do not code the size of any node(s) assigned in M (distant metastasis) **Regional lymph nodes** Renal Pelvis Aortic, NOS Lateral (lumbar) Para-aortic Periaortic Paracaval Renal hilar Retroperitoneal, NOS Regional lymph node, NOS Ureter Iliac, NOS Common External Internal (hypogastric), NOS Obturator Lateral aortic (lumbar) Paracaval Pelvic, NOS Periureteral Renal hilar Retroperitoneal, 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 a single lymph node 2 cm or less in greatest dimension Single or multiple nodes not stated, size not stated

Regional lymph node, NOS
Lymph nodes, NOS

Stated as N1
c2 cN2 Metastasis in a single lymph node more than 2 cm but not more than 5 cm in greatest dimension, OR
Multiple lymph nodes, none more than 5 cm in greatest dimension
Single or multiple nodes not stated, size stated and greater than 2 cm but less than or equal to 5 cm

Stated as N2
c3 cN3 Metastasis in a lymph node more than 5 cm in greatest dimension Single or multiple nodes not stated, size stated and greater than 5 cm

Stated as N3
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)