CS Extension
Notes
**Note 1**: Distal bile duct tumors arise between the junction of the cystic duct-bile duct and the ampulla of Vater. The classification includes tumors developing in congenital choledochal cysts and tumors arising in the intrapancreatic portion of the common bile duct. **Note 2**: Involvement within the porta hepatis is coded according to the structures involved: portal vein, common hepatic artery, and common hepatic duct.Code | Description | AJCC 7 T | AJCC 6 T | Summary Stage 1977 T | Summary Stage 2000 T |
---|---|---|---|---|---|
000 | In situ, intraepithelial, noninvasive | Tis | Tis | IS | IS |
100 | Invasive tumor of distal bile duct confined to: Lamina propria Mucosa, NOS Submucosa (superficial invasion) |
T1 | T1 | L | L |
200 | Muscularis propria | T1 | T1 | L | L |
300 | Localized, NOS | T1 | T1 | L | L |
350 | Stated as T1 with no other information on extension | T1 | T1 | L | L |
400 | Beyond wall of bile duct Periductal/fibromuscular connective tissue |
T2 | T2 | RE | RE |
450 | Stated as T2 with no other information on extension | T2 | T2 | RE | RE |
600 | OBSOLETE DATA RETAINED V0200 See code 605 Gallbladder Liver, porta hepatis Pancreas |
ERROR: | T3 | RE | RE |
605 | OBSOLETE DATA REVIEWED V0203 See codes 608, 670 Gallbladder Liver, porta hepatis Pancreas |
T3 | T3 | RE | RE |
608 | Common hepatic duct Gallbladder Liver Pancreas |
T3 | T3 | RE | RE |
610 | Unilateral branches of portal vein (right or left) Unilateral branches of hepatic artery (right or left) |
T3 | T3 | RE | RE |
620 | Duodenum | T3 | T4 | RE | RE |
630 | Stated as T3 with no other information on extension | T3 | T3 | RE | RE |
650 | OBSOLETE DATA RETAINED V0200 See codes 620, 651 Colon, NOS Transverse including flexure Duodenum, NOS Omentum, NOS Lesser Stomach, distal |
ERROR: | T4 | RE | RE |
651 | Colon, NOS Transverse including flexure Omentum, NOS Lesser Stomach, distal |
T4 | T4 | RE | RE |
660 | OBSOLETE DATA RETAINED V0200 See code 670 Main portal vein or its branches bilaterally Common hepatic artery Hepatic artery, NOS Portal vein, NOS |
ERROR: | T4 | RE | RE |
670 | Main portal vein or its branches bilaterally Common hepatic artery Hepatic artery, NOS Portal vein, NOS |
T4 | T4 | RE | RE |
700 | Other parts of colon Greater omentum Stomach, proximal |
T4 | T4 | RE | RE |
750 | OBSOLETE DATA RETAINED V0200 See code 760 Abdominal wall |
ERROR: | T4 | D | D |
760 | Abdominal wall | T4 | T4 | D | D |
780 | Celiac axis Superior mesenteric artery |
T4 | T4 | D | D |
800 | Further contiguous extension | T4 | T4 | D | D |
850 | Stated as T4 with no other information on extension | T4 | T4 | RE | RE |
950 | No evidence of primary tumor | T0 | T0 | U | U |
999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record |
TX | TX | U | U |