What type of disorder is Huntington's disease classified as?

Huntington's disease is classified as a genetic disorder because it is caused by a mutation in the HTT gene, which is inherited in an autosomal dominant pattern. This means that an individual only needs one copy of the mutated gene from either parent to develop the disease. The presence of the abnormal CAG repeat in the gene leads to the production of a faulty form of the huntingtin protein, which ultimately causes neurodegeneration, particularly in areas of the brain responsible for movement and cognitive function. Because of its hereditary nature and the role of genetic factors in its development, Huntington's disease is distinctly categorized as a genetic disorder, setting it apart from acquired, infectious, or autoimmune conditions.