504 Plan in high school - Does it hurt an applicant later down the road?

I have a high school freshman son that during 7th and 8th grade was suffering with stomach issues. We took him to Johns Hopkins Hospital and they diagnosed him with pretty bad gastritis. It has taken up until this past May (he was 13, turned 14 in June) to get it resolved, or so we hope. Unfortunately, he missed 30 days of school in 8th grade.

Anyhow, he is dreaming of going to one of the service academies and after doing some research, I read that there are different disqualifying...

504 Plan in high school - Does it hurt an applicant later down the road?