Medical Billing and Coding: A Career Guide

In US healthcare, care does not become revenue until it is translated into codes and paid by an insurer, and that gap is a whole profession. This is a career switcher's guide to it. Start with the revenue cycle and the two jobs: coding turns care into codes, billing turns codes into cash. Then the code sets, ICD-10 for diagnoses, CPT for procedures, HCPCS for supplies, and the medical-necessity link that decides payment. Finally the claim lifecycle, denial management where billers earn their value, the compliance line between accuracy and fraud, and how to get certified and hired.