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National Cancer Data Base - Data Dictionary PUF 2016

Treatment Started, Days from Dx

DD_category: 
PUF Data Item Name: 
DX_RX_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 treatment [surgery, radiation, systemic, or other therapy] (NAACCR Item #1270) of the patient began at any facility.
Registry Coding Instructions: 

None.

Analytic Note: 

Any type of surgery, including diagnostic surgery procedures, are automatically coded as Treatment for this variable. Surgery codes should be reviewed for patients who received surgery before any other treatment to determine if the surgery was for treatment.

Code Definition
0 - 9999 Number of Elapsed Days
Blank No first course therapy administered, first course therapy unknown, or cannot compute days elapsed due to missing or incomplete dates