Clinical N

This input is used for staging


**Note:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis). **Regional lymph nodes** **All sites** Hemorrhoidal (middle, superior) Inferior mesenteric Mesenteric [NOS] Perirectal Rectal (middle) Rectal [NOS] Rectal (superior) Rectosigmoid (paracolic/pericolic) Sigmoidal (sigmoid mesenteric) Regional lymph nodes, NOS Lymph nodes, NOS **Rectosigmoid (C199)** Colic, (NOS) Left colic **Rectum (C209)** Hemorrhoidal (inferior) Internal iliac (hypogastric) Lateral (laterosacral) Middle (promontorial) (Gerota's node) Obturator Presacral Rectal (inferior) Sacral (NOS) Sacral promontory


Clinical N Clinical N Display Description Registrar Notes
cX cNX Regional lymph node(s) 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 Regional lymph node metastasis Nodule(s) or foci in perirectal fat

Regional lymph nodes, NOS
Lymph nodes, NOS

Stated as N1
88 88 Not applicable In situ case but no pTis is defined by TNM
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)