EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** The wall of the stomach has five layers: mucosal (code 100), submucosal (code 200), muscular (code 400), subserosal (code 500) and serosal (code 600). **Note 2:** Code 400 if the diagnosis states linitis plastica and no other information regarding extension is available. * Linitis plastica is defined as diffuse involvement of the entire thickness of the stomach wall. **Note 3:** Intraluminal or intramural extension to esophagus and duodenum is classified by the depth of greatest invasion in any of these sites, including stomach. (For extension to esophagus or duodenum via serosa, see code 700). **Note 4:** For structures listed in codes 700 and 750, contiguous extension is coded in this field. If there is discontiguous extension of any of these structures, code involvement in EOD Mets.Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | In situ, intraepithelial, noninvasive (Adeno)carcinoma, noninvasive, in a polyp | IS |
| 100 | Intramucosal, NOS Lamina propria Muscularis mucosae Perimuscular tissue invaded Mucosa - WITH or WITHOUT intraluminal extension to esophagus or duodenum | L |
| 200 | Submucosa (superficial, NOS) - WITH or WITHOUT intraluminal extension to esophagus or duodenum | L |
| 300 | Confined to polyp (head, stalk, NOS) Implants inside stomach Confined to stomach, NOS Localized, NOS | L |
| 400 | Muscularis propria (but not through) - WITH or WITHOUT intraluminal extension to esophagus or duodenum Linitis plastica and no other information regarding extension available | L |
| 500 | Through muscularis propria or muscularis, NOS - WITH or WITHOUT intraluminal extension to esophagus or duodenum Extension through wall, NOS Perimuscular tissue invaded Subserosal tissue/(sub)serosal fat invaded | L |
| 600 | Extension to adjacent (connective) tissue - WITHOUT perforation of visceral peritoneum covering these structures Gastric artery Ligaments - Gastrocolic - Gastrohepatic - Gastrosplenic Omentum (greater, lesser, NOS) Perigastric fat | RE |
| 650 | Mesothelium Serosa Tunica serosa Visceral peritoneum | RE |
| 700 | Colon/mesocolon (including transverse and flexures) Diaphragm Duodenum (via serosa) Esophagus (via serosa) Ileum Jejunum Liver Pancreas Small intestine, NOS Spleen | RE |
| 750 | Abdominal wall Adrenal (suprarenal) gland Aorta Celiac axis Kidney Retroperitoneum Further contiguous extension | D |
| 800 | No evidence of primary tumor | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only | U |