The value of an official diagnosis depends on its application. If you need it for advocacy purposes, then you will need an official diagnosis. If it is primarily for your and your child's understanding of his learning profile, then you may have enough data without a definitive diagnosis. Depends on what else is in the eval besides the D-KEFS and achievement testing. Was there also a comprehensive cognitive battery? (WISC-IV or -V, WJ-III or IV COG, SBV, DAS-II are some of the most common examples)
And I sent you a pm.
