Bergdahl, 29, was charged earlier this year and faces up to life in prison if convicted of the more serious offence of endangering troops who searched for him in lawless areas of Afghanistan after his disappearance in 2009.
The date of the hearing at Fort Bragg, North Carolina, will be announced later, the US Army Forces Command said in a statement.
The head of the army team that investigated Bergdahl has said he does not believe he should face jail time. Prosecutors contend he should be punished for leaving his post and causing a massive search operation.
The official search for Bergdahl lasted 45 days, but the US spent years trying to determine his whereabouts and bring him home.
He was freed in a prisoner swap in May 2014 that sent five Taliban leaders who were being held at Guantanamo to Qatar, where they had to remain for a year.
The deal drew heavy criticism from Republicans.
Major General Kenneth Dahl said Bergdahl was not a Taliban sympathiser and no soldiers involved in the search for him were killed.
Dahl characterised Bergdahl, who has been stationed at a joint base in San Antonio since his return to the US, as an unrealistically idealistic soldier who left his post to report concerns about his unit’s leadership to a general at another base.
Bergdahl disappeared on foot on June 30, 2009, from Combat Outpost Mest-Malak in Paktika Province, Afghanistan, and was subsequently captured by the Taliban.
US military prosecutors said at the hearing in September that Bergdahl snuck away from his post under the cover of night on a plan that was weeks in the making.
They said there was sufficient evidence to hold him for trial on charges of desertion and misbehavior before the enemy.
Testifying for the defence at that hearing, Terrence Russell, an expert with the military’s Joint Personnel Recovery Agency, said that, in his five years of captivity, Bergdahl suffered torture, abuse, and neglect.
Bergdahl said in a podcast launched last Thursday he left his post in Afghanistan to draw attention to “leadership failure” in his unit.