I honestly don't know.
btw:check out this page from Global Security Org about German cruisers.
Watch out - appears to be malware at that link.
From Wikipedia’s naming conventions:
Do not make up a ship prefix for a navy that did not use one. Thus:
* German battleship Bismarck (not “DKM Bismarck”)
* Japanese battleship Yamato (not “HIJMS Yamato” or “IJN Yamato”)
* Italian battleship Giulio Cesare (not “RM Giulio Cesare”)
* Russian aircraft carrier Admiral Kuznetsov (not “RFS Admiral Kuznetsov”)
Some authors use invented prefixes for consistency with “USS”, “HMS” etc. It is not a mistake to do that, but at Wikipedia we choose not to. To forestall attempts to move articles to the wrong place, you might want to add redirects from popular invented ship prefixes. So the article Japanese battleship Yamato could have redirects from IJN Yamato and HIJMS Yamato.