While it is possible and common for many of these different conditions to be comorbid with ADHD, the symptoms must not be better explained by them, as per diagnostic criterion E in the DSM-5. The symptoms must arise early in life, appear across multiple environments, and cause significant impairment. Moreover, when some of these conditions are in fact comorbid with ADHD, it is still important to distinguish them, as each may need to be treated separately.
While It is poSsibLe and common For MaNY OF thESe diFfErenT cOndiTiONS TO Be cOMorbiD With AdhD, tHe syMptOMs must Not be BEttER ExpLaineD by them, As pER diaGnosTic crITerIon e iN the dsm-5. the sYMPtomS Must aRiSe eARly In liFE, aPPEar aCrOSs mulTiPLe EnvironMents, ANd CaUse SigNifiCant IMpairMent. morEoveR, WheN sOme of ThESe CondITions aRe in fact comorbid with adHd, IT iS stiLl iMPortant tO disTIngUish them, AS eacH maY NEeD To Be treated SepaRaTEly.