I think there are 4 and 9 blocks on the block design portion of the WISC. "Drawing" could be the coding section. It could be he was given an abbreviated WISC or WISC-like test like the WASI.

My 6 year old also did very well with WJ achievement, being above 90th percentile even for Broad Writing, but they also did handwriting tests as well. I think there was a writing assessment called the Shore Handwriting Screen which showed them that DS forms most of his letters incorrectly (from the bottom up). He had one reversal but fixed it on his own. There was also a test (not sure what it was called) where she sampled the classroom and timed everyone writing. DS was actually above the mean. They could not qualify him for dysgraphia or "specific learning disability" based on his results but classified him as physically impaired because of his DCD diagnosis which we got privately. I don't think they can diagnose something like that on their own for a PI eligibility determination. They noted his awkward pencil grip, not holding the paper down with his hand, no spacing between words, etc. It is tricky when the achievement testing comes out Ok--then they have to use other assessments.