This isn't confirmed yet. It's not looking good, but what's confirmed is that he misses the first round.
They can beat Chicago, and if by some grace of God they get to play Philly, they'll be okay until the conference finals. If they get the Magic, I can still see them beating them in 7, like YH said.
Aside from that, they need to pray that it's enough time for him to get better for Cleveland.