The Boeing QRH requires the aircraft to be inspected and to be flown unpressurised (& landed at nearest airport for inspection).
However the whole thing is likely to be a storm in a teacup, the tail skid normaly is only scuffed and as long as the shock absorbing cartrige is not too badly compressed the aircraft can go on its way very quickly.
The big problem is that it has to be treated as a full blown tail strike untill proven otherwise and the world tends to over react, the chances are that this was a tail skid scuff and the aircraft has not exceeded any of the maintenance manual limits and so at no time was in any way unservisable.