layout.fixed.naaccr.doc.naaccr16.multiplicityCounter.html Maven / Gradle / Ivy
Alternate Name
Item #
Length
Source of Standard
Implemented Year
Implemented Version
Retired Year
Retired Version
Column #
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.
Codes (refer to
http://seer.cancer.gov/tools/mphrules/index.html for additional instructions).
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.