Heineman suffered an upper-body injury in a traffic accident as a pedestrian Monday and will be sidelined for 3-4 weeks, the team announced Tuesday.
Heineman scored a power-play goal in Friday's 4-2 loss to the Blackhawks.
Heineman scored a goal on one shot and had five hits in Tuesday's 3-2 win over the Golden Knights.
Heineman notched an assist and two hits in Tuesday's 6-1 win over the Sabres.
Heineman logged an assist in Thursday's 9-2 loss to the Penguins.
Heineman scored a goal on four shots and added two hits in Monday's 7-5 win over the Sabres.
Heineman skated on the first line in Thursday's 6-3 loss to Washington. He logged one shot, one block and one hit over 11:29 TOI.
Heineman was called up from AHL Laval on Friday, according to Renaud Lavoie of TVA Sports.
Heineman was sent down to AHL Laval on Thursday.
Heineman was called up by Montreal on Wednesday.