Is it possible to still get a celiac diagnosis on the gluten free diet?

Celiac disease: There is no definitive test for celiac disease. The best evidence for the presence of cd comes from an abnormal intestinal biopy (villous atophy that is found to have resolved on repeat biopsy after gluten is avoided). The diagnosis of cd is unlikely if you do not have hla-dq2 or dq8 on genetic testing. 95% of cd sufferers have dq2, 5% usually have dq8.

More difficult: The blood test on a gluten-free diet may yield false -negative results . But if it is still positive, it would be helpful. A small intestine biopsy would be the best bet but may appear normal if you have avoided gluten long enough.