Hunt was pinched between another Avs forward and Kero, who made direct contact with Hunt's head. There was no penalty on the play and after remaining down momentarily, Hunt got up and received a stick tap from Kero.
While it appears incidental, no one ever knows how the NHL's Department of Player Safety will react to things they see because their rulings have historically been all over the place. However, given that Hunt was not seriously injured on the play and no penalty was called, it's possible that Kero won't face any supplemental discipline.