Extension Cytology Summary Stage Table
Notes
**Note**: For CS Extension codes 100-120, 125-130, 135-140, 160-400, and 540 ONLY. The SS77 or SS2000 category (SS) is assigned based on the value of CS Extension and peritoneal cytology status as coded in Site Specific Factor 2 (SSF2).| SSF2 Code | Summary Stage 1977 T | Summary Stage 2000 T |
|---|---|---|
| 000, 020, 988, 997-999 | L | L |
| 010 | RE | RE |
| 888 | ERROR | ERROR: |
| SSF2 Code | Summary Stage 1977 T | Summary Stage 2000 T |
|---|---|---|
| 000 | L | L |
| 010 | RE | RE |
| 020 | L | L |
| 888 | ERROR | ERROR: |
| 988 | L | L |
| 997-999 | L | L |