People are saying in another thread that it's the "l2 hsic" for jellybean and it has to do with charging. One possible solution is to wake phone and go to home screen before unplugging charger. Also pulling battery for a couple minutes may help.
Sent from my SPH-L900
First time I see it today, so I searched and I see you have the same problem.
Today is the first day I've been on 3G (no LTE in my area) all day, with WiFi disconnected, and BetterBatteryStats shows FastDormancy and mdm_hsic_pm0
Causally related? I am fairly sure FastDormancy is causally related to the 3g stuff, but not sure about mdm_hsic_pm0 - it's possible?
I'm on the i317M, though, so maybe that could help us troubleshoot.