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Coding CS Tumor Size/Extension Evaluation

The CS Tumor Size/Extension Evaluation code records how the codes for the two data items, CS Tumor Size and CS Extension, were determined based on the diagnostic methods employed.

This data item is used in Collaborative Stage to identify whether the T category of AJCC TNM was clinically or pathologically established and by what methods.

Evaluation fields were developed to allow the computer algorithm to derive the TNM Stage.

Code Description & Staging Basis
0 No surgical resection done. Evaluation based on physical examination, imaging examination, or other non-invasive clinical evidence. No autopsy evidence used.
1 No surgical resection done. Evaluation based on endoscopic examination, diagnostic biopsy, including fine needle aspiration biopsy, or other invasive techniques. No autopsy evidence used.
2 No surgical resection done, but evidence derived from autopsy (tumor was suspected or diagnosed prior to autopsy).
3 Surgical resection performed without pre-surgical systemic treatment or radiation OR surgical resection performed, unknown if pre-surgical systemic treatment or radiation performed. Evaluation based on evidence acquired before treatment, supplemented or modified by the additional evidence acquired during and from surgery, particularly from pathologic examination of the resected specimen.
5 Surgical resection performed with pre-surgical systemic treatment or radiation; tumor size/extension based on clinical evidence.
6 Surgical resection performed with pre-surgical systemic treatment or radiation, but tumor size/extension based on pathologic evidence. y
8 Evidence from autopsy only (tumor was unsuspected or undiagnosed prior to autopsy).
9 Unknown if surgical resection done, Not assessed; cannot be assessed.
Unknown if assessed, Not documented in patient record.
For sites with no TNM scheme: not applicable.