EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** The biliary radicals are the ducts or tubes that drain bile into the intestine as part of the digestive process. The second-order biliary radicals are the next largest branches or ducts of the biliary system which join to form or empty into the main hepatic bile duct. **Note 2:** Codes 400 and 500 are defined strictly in terms of invasion into specific large blood vessels and the biliary radicals within the liver. Code 500 when the specified vessels and/or the biliary radical within the liver plus other named organs are involved. **Note 3:** Involvement within the porta hepatis is coded according to the structures involved: portal vein, common hepatic artery, and common hepatic duct.Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | In situ, intraepithelial, noninvasive High-grade biliary intraepithelial neoplasia (BilIn-3) | IS |
| 100 | Invasive tumor of perihilar (proximal) bile duct(s) confined to - Lamina propria - Mucosa, NOS - Muscle layer of fibrous tissue - Muscularis propria - Subepithelial connective tissue (tunica mucosa) - Submucosa (superficial invasion) Confined to perihilar bile duct, NOS Localized, NOS | L |
| 200 | Adipose tissue Adjacent (connective) tissue, NOS Beyond wall of bile duct Periductal/fibromuscular connective tissue | RE |
| 250 | Adjacent hepatic parenchyma Liver | RE |
| 300 | Colon Duodenum Gallbladder Omentum (greater, lesser, NOS) Pancreas Stomach | RE |
| 400 | Unilateral branches of hepatic artery (right or left) Unilateral branches of portal vein (right or left) | RE |
| 500 | Hepatic artery (common, NOS) Main portal vein or its branches bilaterally Portal vein, NOS Second-order biliary radicals bilaterally Unilateral second-order biliary radicals with contralateral portal vein or hepatic artery involvement | RE |
| 600 | Abdominal wall | D |
| 700 | Further contiguous extension | D |
| 800 | No evidence of primary tumor | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record Death Certificate Only | U |