If the new codes that are added with an update can be transferred to the new codes or we are able to delete a code if no longer in use. Example: D4320 (old code) changed to D4322 (new code) in update. If the old code could be transferred to the new code that would make it a little less complicated. Also somehow find a simple way to delete the procedures no longer needed once the update is done so that they are not being used after their "expiration date".