DDH. Helicopter destroyer. It's mainly used for attacking ships rather than for amphibious assault like 075. DDH don't carry marines.
		
		
	 
	
		
	
	
		
		
			Well, in that case, if you believe the Japanese fiction associated, then it's in process of being converted to a DDV.
		
		
	 
Well officially, the devious Japanese has classified their Izimo a "multi-purpose destroyer". So it is a destroyer according to the Japanese. Lol
According to wiki:
The 
Izumo-class multi-purpose destroyers (いずも型護衛艦, 
Izumo-gata-goei-kan) or 
22DDH are 
 in service with the 
 (JMSDF). The class is designated as a multi-purpose operation 
 by the Japanese government due to limits on the 
 prohibiting the acquisition of offensive platforms.
 The 
 of this class are currently the largest surface combatants of the JMSDF, taking over the mantle previously held by the 
. The lead ship was officially unveiled at 
 on 6 August 2013.
 Both ships of the class could operate 
  aircraft after modifications.