The Hepatitis C Genotyping Test is used to categorize the Hepatitis C virus (HCV) into different genotypes based on their genetic makeup. This classification is crucial because different genotypes of HCV respond differently to treatments. By identifying the specific genotype, this test helps in determining the most effective treatment plan and duration for managing HCV infection. There are approximately six main genotypes of the Hepatitis C virus, each with subtypes that may impact treatment outcomes.