|
446 |
2 |
SEER |
2006 |
11 |
|
|
589 - 590 |
Description
This data item is used to count the number of tumors (multiplicity) that are reported as a single primary, when present at the time of diagnosis or occurring later.
Rationale
Patients with multiple tumors reported as a single primary for surveillance purposes may have a worse prognosis or more extensive treatment than patients with a single tumor. This data item will make it possible to identify important information about these cases for data analysis.
00 |
No primary tumor identified |
01 |
One tumor only |
02 |
Two tumors present; bilateral ovaries involved with cystic carcinoma |
03 |
Three tumors present |
.. |
.. |
88 |
Information on multiple tumors not collected/not applicable for this site |
89 |
Multicentric, multifocal, number unknown |
99 |
Unknown if multiple tumors; not documented |
Blank |
Information not collected for this diagnosis date (e.g., all cases diagnosed prior to 2007) |
|
|
Note: Codes 00 and 89 were added effective for 2011.