My then 4 yo son was diagnosed celiac by naturopath due to 38 on Deamidated IGG test. He was neg for Deamidated IGA, TTG IGA and TTG IGG. He had a in range for Immunoglobin A. As a follow up, I took him to a Pediactric GI who scoffed at the testing that was done by the ND and said he did not have celiac after he retested with TTG A and G and it came up negative...