Howdy
I am glad that you are in the VA system. So am I.

I get the Tranquility Smartcore disposable diapers.
Maximum protection.
Day/Night
They work a lot better than the "Wings" disposables that they used to send me.
But that isn't saying much. ROFL
And I am still not sure just how I managed it, but it did require a lot of red tape and a few hoops I had to jump through. But I got the VA to buy me cloth diapers and plastic pants. I got them to classify my prescription to where I can order them every year.
I am still amazed that I got it approved.
I get them from AngelFluff Diaper Company.
https://www.angelfluff.com/I have found that the location you are at and the size of the VA can make a difference on what you can get.
Talk to the pharmacy and the patient representee on what help they can provide.
At times the pharmacy will be able to give you a list of what is available and then your primary doctor will know what product to place the prescription for.
I hope you can get the stuff that you need.
Schoppy