Giorgio Chiellini fired the visitors into the lead in the 21st minute when the central defender was the beneficiary of a ricocheted Alex Sandro effort in the Parma penalty area following a corner kick. It was the Chiellini's 27th Serie A goal in 389 appearances.
Cristiano Ronaldo nearly doubled the lead 10 minutes prior to the interval before VAR ruled the Portuguese attacker narrowly offside.
Juventus manager Maurizio Sarri missed his competitive debut with pneumonia. Under Sarri's predecessor Max Allegri, Juventus sped to the Serie A title last season on 90 points - 11 clear of runner-up Napoli.