CS Extension
| Code | Description | AJCC 7 T | AJCC 6 T | Summary Stage 1977 T | Summary Stage 2000 T |
|---|---|---|---|---|---|
| 000 | In situ, intraepithelial, noninvasive | NA | NA | IS | IS |
| 100 | Invasive tumor confined to site of origin | NA | NA | L | L |
| 300 | Localized, NOS | NA | NA | L | L |
| 400 | Adjacent connective tissue (See definition of adjacent connective tissue in General Rules) |
NA | NA | RE | RE |
| 600 | Adjacent organs/structures: Descending aorta Esophagus Large (named) artery(ies) Large (named) vein(s) Pericardium, NOS: Parietal Visceral (epicardium) Phrenic nerve(s) Pleura, NOS: Parietal Visceral Sternum Sympathetic nerve trunk(s) Thoracic duct Thymus Trachea Vertebra(e) |
NA | NA | RE | RE |
| 800 | Further contiguous extension | NA | NA | D | D |
| 950 | No evidence of primary tumor | NA | NA | U | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record |
NA | NA | U | U |