HJV and hemochromatosis: Non-HFE-hemochromatosis is less frequent and consists of hepcidin deficient hemochromatosis including hemojuvelin (HJV type 2A) and hepcidin (HAMP type 2B) and TRF2-related hemochromatosis (type 3).[2,3] The others comprise ferroportin disease (type 4A) and atypical ferroportin disease (type 4B).[2,3] V162del has been reported in non-C282Y hemochromatosis.