{"id":"h-pylori-igg","name":"H. pylori Antibody, IgG","shortName":"H. pylori IgG","aliases":["H. pylori IgG","H. pylori Ab IgG","Helicobacter pylori IgG Ab","Helicobacter pylori Antibody IgG Qn","HP IgG","Helicobacter pylori Antibody IgG","H. pylori Ac IgG","H. pylori, IgG Abs","H pylori IgG"],"abbreviations":["HP IgG"],"loinc":[{"code":"5176-3","primary":true},{"code":"7902-0","primary":false},{"code":"17859-0","primary":false},{"code":"16126-5","primary":false}],"specimen":"serum","units":[{"ucum":"{index}","display":"index"}],"referenceRanges":[{"population":"Adults","low":0,"high":0.79,"unit":"{index}","unitDisplay":"index","note":"Labcorp's own interpretation for its chemiluminescence assay (DiaSorin LIAISON): negative below 0.80, equivocal 0.80–0.89, positive above 0.89. Other labs use other kits, scales and cut-offs, and an index from one lab cannot be compared with another's. Use the interpretation printed on your own report.","sources":[{"title":"H. pylori, IgG Abs (test 162289)","url":"https://www.labcorp.com/tests/162289/i-helicobacter-pylori-i-antibodies-igg","publisher":"Labcorp"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A blood test for antibodies to H. pylori, a common stomach bacterium. A positive result can reflect a past infection, not only a current one.","url":"https://bloodtesttracker.com/markers/h-pylori-igg","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}