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National Cancer Data Base - Data Dictionary PUF 2015

Radiation, Days from Dx

DD_category: 
PUF Data Item Name: 
DX_RAD_STARTED_DAYS
length: 
4
Allowable values: 
0 – 9999
Description: 
The number of days between the date of diagnosis (NAACCR Item #390) and the date on which radiation therapy was started (NAACCR Item #1210)
Registry Coding Instructions: 

None.

Code Definition
0 - 9999 Number of Elapsed Days
Blank Radiation therapy not administered, radiation therapy unknown, or cannot compute days elapsed due to missing or incomplete dates