Benzema was ruled out of the tournament in Qatar a day before it started after injuring his left thigh in training.
"You're looking for things," Deschamps told a news conference on Tuesday. "It's not something that's in my mind, you know the situation.
"I spoke with Karim before he left, you know his situation and the time he needs to recover. I don't know where you want to go with your question.
"I let you talk, debate, imagine. I'm not going to comment on things which do not concern our day-to-day."
Benzema was targeting a first World Cup success in Qatar, having sat out France's 2018 triumph while he was excluded from the national team.
They will look to complete a clean sweep in the group stage when they face Tunisia on Wednesday.