The left-back made his Denmark debut as a second-half substitute in their 4-0 friendly win over the Faroe Islands last week replacing Henrik Dalsgaard.
Coach Kasper Hjulmand wanted to get a first-hand look at Pedersen as part of a 25-man squad.
The squad was formally cut to 23 players at the weekend before the first of Denmark's two Nations League matches, which was won 3-0 in Iceland last night.
There was always the understanding that Pedersen would be released from duty as Hoffenheim's Robert Skov started on the left of defence in the qualifier. So Pedersen is back at the Trillion Trophy Training Centre, Wast Hills, preparing for Blues return to Championship action.
Nonetheless, he does so with a spring in his step after making his bow for his country and firmly entering the international picture.