{"id":"hfe-h63d","name":"HFE H63D","shortName":"HFE H63D","aliases":["HFE Gene H63D","HFE p.His63Asp","H63D Mutation","Hemochromatosis H63D","H63D","HFE Mutation H63D","rs1799945","HFE c.187C>G","Hemochromatosis Gene H63D","HFE His63Asp","HFE H63D Mutation Analysis","HFE Gene Mutation Analysis H63D"],"abbreviations":["H63D"],"loinc":[{"code":"21696-0","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 a common change in the HFE gene. On its own it rarely causes iron overload, but together with C282Y it can raise iron levels a little.","url":"https://bloodtesttracker.com/markers/hfe-h63d","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}