I apologize in advance if I am in the wrong place. I am new to this forum.

My son was misdiagnosed for several years as having sensory integration disorder and saw a therapist for several years and kicked out of Montessori school because he "refused to behave". We brought him to a neurologist and he was diagnosed ADHD, inattentive type. With the ADHD diagnosis came the public school testing and we were shocked to find a FSIQ of 127. He is on meds and what an incredible world of difference. I would like to see him offered some advanced placement work in school because he is bored and would also like to enroll him in a gifted program. He does however have problems with multitasking and organization. Does anyone know anything about these 2 test scores in relation to his functioning? Thanks.
What is really puzzling are his scores. Can anyone help me understand why the digit span and coding are so low?

VCI 119 90th percentile
PRI 135 99th percentile
WMI 110 75th percentile
PSI 115 84th percentile
FSIQ 127 96th percentile

Within Working Memory
Digit Span 8 25th percentile
Letter Sequincing 16 98th percentile

Within Processing Speed
Coding 10 50th percentile
Symbol Search 15 95th percentile