“IDDM” and “juvenile diabetes” are now called type 1 diabetes, so I would use that.
My bracelet says the same as Nadine’s (among other things), but I’m also in Canada and my bracelet is from Medic Alert and I also wear a pump. I think type 1 diabetes is pretty clear, and any medical professional should know people with type 1 are insulin dependent. I think the insulin pump information is important to have if you are on a pump because it’s important they know you’re not taking long-acting insulin so need some form of insulin delivery (IV, shots) if you’re not connected to your pump. I was told by my diabetes nurse during pump training that a surprising number of doctors DON’T know this and that I should have a card in my wallet saying it, but I don’t carry that around even though I should.