Description
Date of initiation of chemotherapy that is part of the first course of treatment. See also RX Summ--Chemo [1390]. See page 99 for date format.
Rationale
The dates on which different treatment modalities were started are used to evaluate whether the treatments were part of first-course therapy and to reconstruct the sequence of first-course treatment modes.
Note: CoC discontinued support of this item from 2003 through 2009.