EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** Code 000 (behavior code 2) includes cancer cells confined within the glandular basement membrane (intraepithelial) or described as in situ or high-grade appendiceal mucinous neoplasms (HAMN) **Note 2:** Code 050 (behavior code 2) for low-grade appendiceal mucinous neoplasms (LAMN) that are confined by the muscularis propria **Note 3:** Code 070 (behavior code 3) includes the following: * Intramucosal, NOS * Lamina propria * Mucosa, NOS * Confined to, but not through the muscularis mucosa **Note 4:** Ignore intraluminal extension to adjacent segment(s) of colon/rectum or to the ileum from the cecum; code depth of invasion or extracolonic spread as indicated. **Note 5:** Mucinous tumors are identified by morphology codes 8480, 8481, and 8490. **Note 6:** Use code 700 for macroscopic adhesions if no pathological confirmation, and for microscopic confirmed tumor in adhesions. However, if no tumor is present in adhesion(s) upon microscopic examination, the classification is based upon extent of tumor invasion into or through the wall (see codes 100-600. **Note 7:** Codes 700 and 750 are used for contiguous extension from the site of origin. Except for intraperitoneal metastases limited to the right lower quadrant (RLQ) of the abdomen for mucinous tumors (see code 600), discontinuous involvement is coded in EOD Mets.Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | In situ, intraepithelial, noninvasive (Adeno) carcinoma, noninvasive, in a polyp or adenoma High-grade appendiceal mucinous neoplasm confined by the muscularis propria (HAMN) | IS |
| 050 | Low-grade appendiceal mucinous neoplasm confined by the muscularis propria (LAMN) Acellular mucin or mucinous epithelium may invade into muscularis propria | IS |
| 070 | Lamina propria Mucosa (intramucosal, NOS) Muscularis mucosae | L |
| 100 | Submucosa Confined to appendix, NOS Confined to polyp, NOS Localized, NOS | L |
| 200 | Muscularis propria | L |
| 300 | Extension through wall, NOS Invasion through muscularis propria Non-peritonealized pericolic tissues invaded Perimuscular tissue invaded Subserosa Transmural, NOS Wall, NOS | L |
| 400 | Adjacent tissue(s), NOS Connective tissue Fat, NOS Mesenteric fat Mesentery Mesoappendix Pericolic fat | RE |
| 500 | Invasion of/through serosa (mesothelium) (visceral peritoneum) | RE |
| 600 | For mucinous tumors only (ICD-O-3 codes 8480/3, 8481/3, and 8490/3 only) - Peritoneal involvement confined within right lower quadrant + WITH or WITHOUT further local extension | D |
| 700 | Abdominal wall Adherent to other organs or structures Greater omentum Retroperitoneum (excluding fat) Small intestine Tumor found in adhesion(s) if microscopic examination performed | RE |
| 750 | Mucinous tumors only (ICD-O-3 codes 8480/3, 8481/3, and 8490/3 only) - Structures in code 700 with peritoneal involvement confined within right lower quadrant All tumors - Adrenal (suprarenal) gland - Bladder - Diaphragm - Fallopian tube - Fistula to skin - Gallbladder - Kidney - Liver - Other segment(s) of colon/rectum via serosa - Ovary - Ureter - Uterus 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 |