16.3 does not apply to injury calls as it only applies to a foul or violation call.
However 19.1.7 covers what should happen for an injury call while the disc is in the air:
If the disc was in the air when the injury stoppage was called, play continues until either the pass is caught, or the disc hits the ground. If the injury is not the result of a foul, the completion or turnover stands, and play restarts there after the stoppage.