Giving a service of medical billing and coding to patient.Medical billing is a payment practice within the United States healthcare system. The process involves a healthcare provider obtaining insurance information from a patient and filing, following up on and appealing claims with health insurance companies in order to receive payment for services rendered, such as testing, treatments, and procedures. The same process is used for most insurance companies, whether they are private companies or government sponsored programs. Medical coding reports what the diagnosis and treatment were and prices are applied accordingly.