The 2011 FA Youth Cup winner is set to join Blues manager Lee Clark at St Andrew's, where he is eligible to play in the Championship up to and including Sunday 20 October.
Of course, Lingard caught the eye during this summer’s Tour 2013 Presented by Aon by scoring four goals, more than any other first-team player.
Most recently, the Warrington-born forward also made his England Under-21s debut, coming on as a second-half substitute during a 6-0 demolition of Scotland in August.
He will wear the no.9 jersey for Birmingham and could make his debut against Sheffield Wednesday on Saturday.
"I expect a couple more lads to go out on loan shortly, this week," revealed Reserves coach Warren Joyce to MUTV on Monday. "Then we have got to build ourselves into a settled side and get a pattern of play by having everybody at it, like we have in the last few years.
"There will be several players that need to be out loan now that we need to look at."