Technical Report #7 on WISC IV Extended Norms says

"The extended norms are useful when a child’s score is the
maximum (ceiling) on two or more subtests (e.g., obtains scaled scores of 18 or 19 points)."

It appears that your DD's scores don't qualify for the extended norms. She is clearly a gifted little girl. Good luck sorting through her 2e issues. The parents on this board can definitely help you in dealing with your 2e/gifted questions.