All parents should start in the school’s front office. Ask to speak with an administrator and bring any type of documentation and work samples you may have. In order for an individual to receive any type of accommodations, the individual must provide documentation of a specific disability. For a valid and accurate diagnosis, an individual needs a full psycho-educational evaluation through a licensed or otherwise qualified professional. Ask the school for this type of screening/evaluation.
Note: A diagnosis of ADHD is not enough to qualify a child as learning disabled. In cases where students receive services for an ADHD diagnosis, either through an IEP or a 504 Plan, the coding is usually Other Health Impaired (OHI). The following articles from LD OnLine relate to diagnosis of ADHD and might be useful to you.
Finally, you may wish to contact any of the following organizations who specialize in advocacy and legal rights of parents: