I have watched about 20 games this season so far, but haven't been able to glean whether changing a pitcher counts against the 6 allotted mound visits.
Can anyone clarify this definitively?
I have found, in the 2018 MLB Rule Book,
Rule 5.10(m)(1): Mound visits without a pitching change shall be limited to six per team, per nine innings. For any extra-innings played, each team shall be entitled to one additional nonpitching change mound visit per inning.
It looks like pitching changes are not considered Mound Visits.