Perhaps I have not explained myself clearly. My apologies. The mapping relations below are structured within our table. If you wish to drop the former set of codes entirely and use System A instead, we suppose the two sets of codes should be reconciled accordingly. As such, we will require a set of codes under System A so that the current mapping relations from our table could be properly reflected.
～～～～～纯人手翻译，欢迎采纳～～～～～
