diagnosed odd and dysruptive mood dysregulatory disorder?

i've been told by parents that i have both odd and disruptive mood dysregulatory disorder. i read on wikipedia that you are not supposed to be diagnosed with both. i asked my mom and she seemed to invade the question but she said eventually that it was because 2 different doctors diagnosed me. idk should i be concerned? i'm also diagnosed intermittent explosive disorder which has similar symptoms, i wonder is it useful that i have so many similar labels?