Apologies for the repeat question as I know it’s been asked and answered somewhere on this forum before I just can’t find it.

First time getting the different type of reroute pay (RTB leg plus 4 hrs late domestic plus x day violated, think it’s L9?)

On my time card it shows ADJ RRPY up where the trips are for 15 ish hours and then halfway down the page near GS pay it says Reroute Pay: 15 ish hours, but that number is slightly different. Am I right that one of those is the garden variety RR pay and one is the L9 pay and they are additive? So total payout would be 30 something hours? TIA