There are free courses online that teach medical coding, but the amount of information they teach is limited and may not be enough to obtain employment. For the best chance of a career in medical coding, it is necessary for most people to complete a full training course.
Many community colleges offer medical coding programs. With financial aid, this training may be obtained free or at a reduced cost. A decent medical coding course will involve the study of anatomy and medical terminology prior to beginning medical coding instruction, according to the AAPC, a health information management association that offers medical coding certifications accepted by many employers.