[Coach Bill]

NFHS rules. There was a player on the floor with a minor injury and the ref blew the whistle to stop play. The player then got up and said he was fine. The coach was never beckoned onto the floor. Can the player stay in the game without a time out being taken?

I thought he had to come out of the game or take a time out, but the ref said, I "thought" he was injured. Essentially telling me inadvertent whistle.
Correct ruling?