Item ID Numbering conventions

Does anyone know of documentation, or just know off-hand, how blizzard uses item IDs? I’ve noticed a lot of the items in the current expansion are something like 22****. I’ve been trying to find something like defined ranges of ID by expansion, but I have had zero luck. Really looking for something that says “anything north of 22**** is the War Within, 19**** for Dragonflight” and so on.

their is no such documentation that i know of we had this question in the discord item id’s may not always follow this convention and tradition of numbering increases some old items are updated and returned in new expansions and have lower then the norm numbering