Table A1.
Site and Extent-of-Disease Codes Used to Identify Cancers Metastatic at Diagnosis
| Tumor Type | SEER Site Recode (CODKM) | ICD-O-3 Topography Code | EOD-10 Extent Code | Collaborative Staging Metastasis Code |
|---|---|---|---|---|
| Breast | 46 | C50.0-C50.6, C50.8-C50.9 | 85 | 10, 40, 42, 44, 50 |
| Bladder | 58 | C67.0-C67.9 | 85 | 10, 11, 40, 50 |
| Colorectal | 15-23, 25-26 | C18.0-C18.9, C19.9, C20.9 | 85 | 08, 10, 40, 50 (colon) |
| 10, 11, 12, 40, 50 (rectum) | ||||
| Ovarian | 50 | C56.9 | 85 | 10, 40, 50 |
| Stomach | 12 | 85 | 10, 40, 50 | |
| Pancreas | 33 | C25.0-C25.9 | 85 | 10, 40, 50 |
| Esophagus | 11 | C15.0-C15.5, C15.8, C15.9 | 85 | 10, 11, 12, 40, 50 |
| Lung | 39 | C34.0-C34.3, C34.8, C34.9 | 85 | 10, 35, 37, 39, 40, 50 |
| Prostate | 54 | C61.9 | 85 | 11, 12, 30, 35, 40, 45, 50, 55 |
Abbreviations: EOD, extent of disease; ICD-O-3, International Classification of Diseases for Oncology, 3rd edition.