As a radiation oncology coder, you assess the diagnosis and treatment of patients in order to determine the best billing procedure. In this role, you may confer with healthcare providers to gather any missing information, submit bills to patients or insurance companies, and provide other help and services as needed. Most radiation oncology coders do not focus exclusively on this area because coders often have to work with many types of procedures, but you may find jobs that exclusively deal with radiation oncology if you work for a specialty care facility. This job often involves communicating with other people, so the ability to coordinate conversations through phone or email is essential to success.