Medical coding Course is a little bit like a translation. Coders take medical reports from doctors, which may include a patient’s condition, the doctor’s diagnosis, a prescription, and whatever procedures the doctor or healthcare provider performed on the patient, and turn that into a set of codes, which make up a crucial part of the medical claim. Medical billing and coding are two closely related aspects of the modern health care industry. Both practices are involved in the immensely important reimbursement cycle, which ensures that health care providers are paid for the services they perform