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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
| 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 |
| 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 |
| 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 |