{"id":"hbeag","name":"Hepatitis B e antigen (HBeAg)","shortName":"HBeAg","aliases":["HBeAg","Hepatitis B e Antigen","Hep B e Ag","HBe Antigen","Hepatitis Be Antigen","Hepatitis B e-Antigen","Hepatitis B Virus e Antigen","Hep Be Ag","Hepatitis Be Ag","HBe Ag","HBeAg, Qualitative","Hepatitis B Antigen, e"],"abbreviations":["HBeAg","HBe Ag"],"loinc":[{"code":"13954-3","primary":true},{"code":"31844-4","primary":false},{"code":"5191-2","primary":false}],"specimen":"serum-or-plasma","units":[],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A hepatitis B virus protein linked to active virus growth and higher infectiousness. It's usually checked only after a positive HBsAg.","url":"https://bloodtesttracker.com/markers/hbeag","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}