Flood sent Worcester counterpart Andy Goode's head towards the ground in Leicester's 19-14 English Premiership win on Friday.
"Flood's case will be heard on Tuesday 8 January," a Rugby Football Union statement said.
The number 10 could face a substantial ban if found guilty. England's Six Nations opener at home to Scotland takes place on February 2.
Any period of suspension would also leave him in grave danger of missing Leicester's pivotal Heineken Cup pool games against the Ospreys and Toulouse later this month.