Sorry Reverett didn't make myself too clear.
Yes the breath test is a diagnostic test but as far as I know it's widely available and most Drs do this test when it's suspected.
My hubby had it (helicobacter pylori) and it was diagnosed with this test and subsequently cured after a short course of the appropriate medication.
It's been around a few years now (the test) and also the appropriate medication to treat it.