I think those are mold numbers, Vexedwaffle. PlaymoDB does have a few mold numbers, but Playmobil parts are usually identified by an 8-digit number (ETN or Ersatzteilnummer in German) beginning with 30 (occasionally 35 or 40). You will find the part numbers at PlaymoDB and you will need them to reorder from Playmobil.
(Part numbers are unique to a part with a specific colour and printing, whereas mold numbers refer to molds used to create a part in any colour and with or without subsequent printing. Frustrating that part numbers aren't on the parts themselves!)