SEER Training Modules
11/27/12 - The NCI is working on updating materials.
ICD-O-3 Site Codes
| Spread |
Primary Site/Mets |
| Esophagus |
esophageal, esophago- |
| Stomach |
gastric, gastro- |
| Small intestine |
small bowel, entero-, duodeno-, jejuno-, ileo- |
| Esophagus, stomach and small intestine |
upper gastrointestinal (UGI), esophagogastroduodeno- |
ICD-O Codes
Esophagus
| ICD-O-2/3 Codes |
ICD-O-2/3 Term |
| C15.0 |
Cervical esophagus |
| C15.1 |
Thoracic esophagus |
| C15.2 |
Abdominal esophagus |
| C15.3 |
Upper third of esophagus |
| C15.4 |
Middle third of esophagus |
| C15.5 |
Lower third of esophagus |
| C15.8 |
Overlapping lesion of esophagus |
| C15.9 |
Esophagus, NOS |
Stomach
| ICD-O-2/3 Codes |
ICD-O-2/3 Term |
| C16.0 |
Cardia, NOS |
| C16.1 |
Fundus of stomach |
| C16.2 |
Body of stomach |
| C16.3 |
Gastric antrum |
| C16.4 |
Pylorus |
| C16.5 |
Lesser curvature of stomach, NOS
(not classifiable to C16.1 to C16.4) |
| C16.6 |
Greater curvature of stomach, NOS
(not classifiable to C16.0 to C16.4) |
| C16.8 |
Overlapping lesion of stomach |
| C16.9 |
Stomach, NOS |
Small Intestine
| ICD-O-2/3 Codes |
ICD-O-2/3 Term |
| C17.0 |
Duodenum |
| C17.1 |
Jejunum |
| C17.2 |
Ileum (excludes Ileocecal valve C18.0) |
| C17.3 |
Meckel diverticulum (site of neoplasm) |
| C17.8 |
Overlapping lesion of small intestine |
| C17.9 |
Small intestine, NOS |
