He will examine whether the nature of play exacerbated the risk of injury, whether the response was appropriate and if a different protective helmet would have reduced the likelihood of death among other topics.
Speaking before the inquest began, Hughes' manager James Henderson and Cricket Australia boss James Sutherland both said they hoped something positive would come out of the week.
Mr Henderson said it was a "very, very difficult" time for Hughes' family.
"They haven't been looking forward to this week as you would imagine," he said outside court.
"But they are hoping that perhaps there will be a positive come out of Phil's death as we go through this next five days."
-AAP