Coding CS Metastasis Evaluation

This data item records how the code for the data item “CS Mets at DX” was determined based on the diagnostic methods employed.

Code	Description & Staging Basis
0	No pathologic examination of metastatic tissue performed. Evaluation of distant metastasis based on physical examination, imaging examination, and/or other non-invasive clinical evidence. No autopsy evidence used.
1	No pathologic examination of metastatic tissue performed. Evaluation of distant metastasis based on endoscopic examination or other invasive technique. No autopsy evidence used.
2	No pathologic examination of metastatic tissue done prior to death, but no carriage return here evidence derived from autopsy (tumor was suspected or diagnosed prior to autopsy).
3	Pathologic examination of metastatic tissue performed WITHOUT pre- surgical systemic treatment or radiation OR pathologic examination of metastatic tissue performed, unknown if pre-surgical systemic treatment or radiation performed.
5	Pathologic examination of metastatic tissue performed WITH pre- surgical systemic treatment or radiation, and extension based on clinical evidence. Clinical.
6	Pathologic examination of metastatic tissue performed WITH pre- surgical systemic treatment or radiation, BUT extension based on pathologic evidence.
8	Evidence from autopsy; tumor was unsuspected or undiagnosed prior to no CR here autopsy.
9	Not assessed; cannot be assessed. Unknown if assessed. Not documented in patient record for sites with no TNM staging: Not applicable.

For sites with no TNM staging: Not applicable. Clinical.

Codes 0, 1, 5, and 9 indicate a clinical staging basis. Codes 2 and 3 indicate a pathologic staging basis. Code 6 is the intercurrent (y) staging basis, and code 8 is reserved for cases diagnosed at autopsy (the “a” staging basis).