Fighting broke out in a corner of the ground after Chelsea's opening goal in the 16th minute and 50 stewards and police took 10 minutes to restore order.
A steward received first aid treatment after being hit by a missile, which was believed to have been sparked by the presence of Chelsea fans in the Leicester end.
Ten people were arrested; seven have been charged with public order offences, one with ticket touting, while another was cautioned and the 10th released without charge.
The Leicester chairman, Tom Smeeton, yesterday said the club would be looking into swipe-card technology which would make it more difficult for away fans to get tickets for the home stands.
Another referee, Martin Bodenham, confirmed yesterday that he would be notifying the FA of coins and objects thrown by supporters at an assistant referee during Birmingham City's FA Cup tie against Wrexham at St Andrew's on Saturday.
Derbyshire police claim advance intelligence prevented trouble at Saturday's FA Cup tie between Chesterfield and Nottingham Forest. Fifty-eight people were arrested before, during and shortly after the game.
A police spokesman said the arrests had pre-empted trouble expected at the game. "We had identified the people likely to cause trouble by putting intelligence received into effect. We had a very successful day," he said.Reuse content