CS Site-Specific Factor 10
Location of Primary Tumor
Notes
**Note**: Since both omental and peritoneal gastrointestinal stromal tumors (GIST) are coded with the same ICD-O-3 topography code (C48.1), this Site-Specific Factor must be used to identify the appropriate AJCC stage table.| Code | Description | Stage Table |
|---|---|---|
| 010 | Mesentery Mesoappendix Mesocolon |
AJCC7 Stage |
| 020 | Omentum | AJCC TNM7 Stage GIST Stomach |
| 030 | Pelvic Peritoneum | AJCC7 Stage |
| 040 | Rectouterine pouch Cul de sac Pouch of Douglas |
AJCC7 Stage |
| 988 | Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 988 may result in an edit error.) |
ERROR: |
| 998 | Other specified peritoneal site | AJCC7 Stage |
| 999 | Unknown or no information Not documented in patient record |
AJCC7 Stage |