Hemochromatosis type 1 (classic) is the most common form of hereditary hemochromatosis (HH), a group of diseases characterized by excessive tissue iron deposition. Due to its incidence (1/200-1/1000), it is not considered as a rare disease, unlike the other subforms of the disease. The disease is MONDO_0021001 (hemochromatosis type 1). Also known as: C282Y/C282Y hemochromatosis, HFE-associated hereditary hemochromatosis, HFE-related hemochromatosis, HFE1, classic hemochromatosis, hemochromatosis, hemochromatosis, type 1.