Collaborative Stage for TNM 7 - Revised 11/20/2010 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map | 
| 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 |