OT's don't necessarily diagnose. DS gets private OT/PT (since age 4) and they never even mentioned Developmental Coordination Disorder, which DS obviously has. I had to take him to a neuropsych to get a written diagnosis.
Look up Developmental Coordination Disorder on Wikipedia...it talks about all the co-morbities like sensoory issues, spatial processing problems, specific learning disabilities, etc.
Also look up Dysgraphia on Wikipedida. It talks about the different types of dysgraphia. One just involves poor motor skills that affect handwriting. In this case spelling would be normal but finger tapping would be poor.
