{"id":"hfe-c282y","name":"HFE C282Y","shortName":"HFE C282Y","aliases":["HFE Gene C282Y","Hemochromatosis Gene C282Y","HFE p.Cys282Tyr","Hemochromatosis C282Y","C282Y","HFE Mutation C282Y","rs1800562","C282Y Mutation","HFE c.845G>A","HFE Cys282Tyr","Hereditary Hemochromatosis C282Y Mutation","HFE C282Y Mutation Analysis","HFE Gene Mutation Analysis C282Y"],"abbreviations":["C282Y"],"loinc":[{"code":"21695-2","primary":true},{"code":"34519-9","primary":false},{"code":"21694-5","primary":false}],"specimen":"whole-blood","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A DNA test for the most common gene change behind hereditary hemochromatosis, a condition where the body absorbs too much iron. Having two copies does not always lead to iron overload.","url":"https://bloodtesttracker.com/markers/hfe-c282y","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}