Goto IVR from within a custom extension

While inside a custom extension, is it possible to go out to an IVR?

Inside one of my custom extensions I’d like to be able to let the user back out to the “main menu”, which is just an IVR I’ve called “Intro”. Is there a way to do that?

I was thinking about using Goto() with the appropriate context/extension for the ivr, but if I ever change the IVR that would break it, so I’m worried about going that route.