Andrew Luck had 0 touchdowns on interceptions versus the Titans on December 30, 2018.

andrew luck pick 6's game log
Interpreted as:
Andrew Luck pick 6's game log in his career
12/30/2018Luck12/23/2018Luck12/16/2018Luck12/9/2018Luck12/2/2018Luck11/25/2018Luck11/18/2018Luck11/11/2018Luck10/28/2018Luck10/21/2018Luck10/14/2018Luck10/4/2018Luck9/30/2018Luck9/23/2018Luck9/16/2018Luck9/9/2018Luck1/1/2017Luck12/24/2016Luck12/18/2016Luck12/11/2016Luck12/5/2016Luck11/20/2016Luck11/6/2016Luck10/30/2016Luck10/23/2016Luck0000000000000000000000000
Results may be incomplete. StatMuse has complete game-level data for interception touchdowns going back to the 1950 season.