The Capitals are already without center Zach Sill on Saturday as he serves the second of his two-game suspension.
In the first period of Washington's 4-1 victory Thursday night, Johansson struck Hickey in the head with his left shoulder and was penalized for the illegal check.
Johansson said he did not target Hickey's head, and Hickey said half of the blame was on him for not having his head up. Hickey left the ice after the hit but returned shortly after and finished the game.
Johansson, 25, had no previous suspension history in his NHL career and had been penalized only three previous times this season.
Johansson will forfeit $40,323 as a result of the suspension.
The Capitals recalled forward Paul Carey for Saturday afternoon's game at the Rangers.