Hi Megha,
The QS file has been retired and the contents have been combined into the SDTM file.
From the NCI website (http://evs.nci.nih.gov/ftp1/CDISC/SDTM/ReadMe.txt) :
"The December 18, 2015 release brought changes to the SDTM data files – notably,
the standalone Questionnaires, Ratings, and Scales (QRS) Terminology has been
deprecated and its content subsumed into the Study Data Tabulation Model (SDTM)
Terminology publication file.”
This doesn’t change anything in terms of validation or reporting on your end.
Best,
Gerard