The Virginia workers compensation statute of limitations for filing a change in condition claim is two years from the last day for which compensation was paid pursuant to an Award Order. To determine the applicable deadline in a change in condition application you will have to review your Award Orders and payments made to you. If you have received multiple Award Orders in your case, make sure you review the most recent one.
If you returned to light duty work for the same pre-injury employer, then you may be able to toll the change in condition statute of limitations for up to two more years. At most the statute of limitations for a change in condition claim is four years.