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**: Use codes for anal canal unless tumor is stated to occur at the anus, arising just proximal to the squamous mucocutaneous junction or the anal verge. **Note 3**: For codes 400 and 405, the combination of unilateral internal iliac nodes and unilateral inguinal nodes must be on the same side. Use code 530 for bilateral combinations of internal iliac nodes and inguinal nodes. **Note 4**: Use codes for internal iliac nodes for combinations of perirectal and internal iliac nodes. Use codes 415, 425, and 440 for combinations of perirectal and superficial inguinal nodes.
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 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 110, 120, 130, and 140

Unilateral and bilateral:
For all subsites:
Anorectal
Inferior hemorrhoidal
Lateral sacral (laterosacral)
Perirectal
Stated as N1 with no other information on regional lymph nodes		 N1 N1 RN RN
110 For anal canal:
Unilateral or bilateral:
Anorectal
Inferior hemorrhoidal
Lateral sacral (laterosacral)
Perirectal		 N1 N1 RN RN
120 For anus:
Unilateral or bilateral:
Anorectal
Inferior hemorrhoidal
Perirectal		 N1 N1 RN RN
130 For anus:
Unilateral or bilateral:
Lateral sacral (laterosacral)		 N1 N1 D RN
140 Stated as N1 with no other information on regional lymph nodes N1 N1 RN RN
200 For anal canal:
Unilateral:
Internal iliac (hypogastric):
Obturator		 N2 N2 RN RN
210 OBSOLETE DATA CONVERTED V0203
See code 330

Unilateral:
For anus:
Internal iliac (hypogastric):
Obturator		 ERROR: ERROR: ERROR: ERROR:
300 For anal canal:
Unilateral:
Superficial inguinal (femoral))		 N2 N2 D RN
310 For anus:
Unilateral:
Superficial inguinal (femoral)		 N2 N2 RN RN
330 For anus:
Unilateral:
Internal iliac (hypogastric):
Obturator		 N2 N2 RN RN
350 Stated as N2 with no other information on regional lymph nodes N2 N2 RN RN
400 300 + 200

For anal canal:
Nodes in 300 plus nodes in 200		 N2 N2 D RN
405 330 + 310

For anus:
Nodes in 330 plus nodes in 310		 N2 N2 D RN
410 OBSOLETE DATA RETAINED AND REVIEWED V0203
See code 415

100 + 300		 N3 N3 D RN
415 300 + 110

For anal canal:
Nodes in 300 plus nodes in 110		 N3 N3 D RN
420 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 425, 440

100 + 310		 N3 N3 RN RN
425 310 + 120

For anus:
Nodes in 310 plus nodes in 120		 N3 N3 D RN
440 310 + 130

For anus:
Nodes in 310 plus nodes in 130		 N3 N3 D RN
470 For anal canal:
Bilateral:
Internal iliac (hypogastric):
Obturator		 N3 N3 D RN
490 For anus:
Bilateral:
Superficial inguinal (femoral)		 N3 N3 D RN
500 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 470, 515

Bilateral:
For anal canal:
Internal iliac (hypogastric)
Obturator
Superficial inguinal (femoral)		 N3 N3 RN RN
510 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 490, 520

Bilateral:
For anus:
Internal iliac (hypogastric)
Obturator
Superficial inguinal (femoral)		 N3 N3 D RN
515 For anal canal:
Bilateral:
Superficial inguinal (femoral)		 N3 N3 D RN
520 For anus:
Bilateral:
Internal iliac (hypogastric)
Obturator		 N3 N3 D RN
530 For all subsites:
Bilateral:
Internal iliac (hypogastric):
Obturator
AND
Superficial inguinal (femoral)		 N3 N3 D D
550 Stated as N3 with no other information on regional lymph nodes N3 N3 RN RN
600 Regional lymph node(s), NOS N1 N1 RN RN
800 Lymph nodes, NOS N1 N1 RN RN
999 Unknown; regional lymph nodes not stated
Regional lymph nodes cannot be assessed
Not documented in patient record		 NX NX U U