Captain Pat Rafter has opted to stick by his decision to axe the country's leading player from the opening tie after he was disciplined last month for a lack of professionalism.
Former Wimbledon and US Open champion Lleyton Hewitt will lead the team, which also includes Chris Guccione, Matthew Ebden and Marinko Matosevic.
"The decision's made. You've got to stick by your decisions. In terms of his form and everything, yes, it would be great to have him part of it," Rafter said of Tomic, 20, who was knocked out of the Australian Open in the third round by Roger Federer.
"But we had our issues. The reason we left him out was hopefully to teach him a lesson. I think he came back at us pretty well. I think he used that anger, channelled it and played some great tennis here."
Tomic, ranked 43 in the world, was impressive in his two wins at the Australian Open and also tested Federer before succumbing to the 17-time Grand Slam champion.
Rafter also announced that Josh Eagle would be taking over as coach of the Australian Davis Cup team with Tony Roche stepping down and to take up a mentoring role in the side.