Collaborative Stage for TNM 7 - Revised 12/21/2009 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 00 | No; none | M0 | M0 | NONE | NONE |
| 08 | Cecum, ascending, hepatic flexure and transverse colon: Superior mesentric lymph nodes only | M1a | M1 | RN | D |
| 10 | OBSOLETE DATA RETAINED V0200 See codes 15 and 25 Distant lymph node(s) other than code 08 For all colon sites: Common iliac Distant lymph node(s), NOS External iliac Para-aortic Retroperitoneal For cecum, appendix, ascending colon, transverse colon, and hepatic flexure; Inferior mesenteric For splenic flexure, descending colon, and sigmoid colon: Superior mesenteric | ERROR | M1 | D | D |
| 15 | Metastasis to a single distant lymph node chain other than code 08 For all colon sites: Common iliac Distant lymph node(s), NOS External iliac Para-aortic Retroperitoneal For cecum, ascending colon, transverse colon, and hepatic flexure: Inferior mesenteric For splenic flexure, descending colon, and sigmoid colon: Superior mesenteric | M1a | M1 | D | D |
| 20 | Metastasis to a single distant organ | M1a | M1 | D | D |
| 22 | Stated as M1a with no other information on distant metastases | M1a | M1 | D | D |
| 25 | Metastasis to more than one distant lymph node chain other than code 08 For all colon sites: Common iliac Distant lymph node(s), NOS External iliac Para-aortic Retroperitoneal For cecum, ascending colon, transverse colon, and hepatic flexure: Inferior mesenteric Superior mesenteric For splenic flexure, descending colon, and sigmoid colon: Superior mesenteric | M1b | M1 | D | D |
| 30 | Metastases to more than one distant organ Metastases to the peritoneum Carcinomatosis | M1b | M1 | D | D |
| 35 | (08 or 15 or 25) PLUS (20 or 30) Distant lymph nodes plus other distant metastases | M1b | M1 | D | D |
| 38 | Stated as M1b with no other information on distant metastases | M1b | M1 | D | D |
| 40 | OBSOLETE DATA RETAINED V0200 See codes 20, 30 and 60 Distant metastases except distant lymph node(s)(codes 08-10) Carcinomatosis | ERROR | M1 | D | D |
| 50 | OBSOLETE DATA RETAINED V0200 See code 35 (40) + ((08) or (10)) Distant lymph node(s) plus other distant metastases | ERROR | M1 | D | D |
| 60 | Distant metastasis, NOS Stated as M1[NOS] with no other information on distant metastases | M1NOS | M1 | D | D |
| 99 | Unknown if distant metastasis Distant metastasis cannot be assessed Not documented in patient record | M0 | MX | U | U |