Rebecca S

My son has an IEP for speech, which he has mastered, and they have kept him on to get him approved for an OHI IEP. We are in TN, and I have had an increasingly difficult time in our school district with accommodations. He has ASD and was diagnosed with GAD also last year he was diagnosed with a neurological disorder in his colon. He is 7 and not potty trained, which has been a problem with the school. He is in Gen Ed, high functioning and they do not provide any kind of assistance. He is expected to go to the bathroom and take care of all his needs on his own, the problem is he won't. I was told due to the medical conditions he needs a 504 but the school is attempting to do an OHI IEP. I guess my question is 3 parts, can I ask for accommodations or some kind of aid in this matter, which would be better for him to have a 504 or an IEP, or can he have both? I am not new to this, but I have received very little assistance in advocating for my son and his rights, even from local Special Education advocacy groups. All my knowledge has been self-research and what knowledge I have gleamed from others. Any direction would be helpful. His meeting is tomorrow so this may not even get answers until after, but it may help me later.