Well, this is a play that was counted as a 7 yard pass from Peyton Manning to Eric Decker. It would appear that it was a backwards lateral and should have been counted as a rush attempt.
Last week, Peyton Manning's 50th touchdown pass (appropriately) came under scrutiny, and the NFL admitted that it should not have counted.
Manning rendered that somewhat moot by throwing for another four scores at Oakland, but his yardage record doesn't have a similar buffer to withstand questioning. He seemingly broke Drew Brees's record by a yard, but it looks like seven of Sunday's yards should be taken away.