Your duties as an entry-level medical coding involve reviewing patient information and assigning codes to each clinical diagnosis and treatment for billing, medical records, and insurance purposes. If you have no experience, another medical coding specialist may review your work to ensure accuracy. Some employers consider entry-level employees “trainees” or “assistants” and provide on-the-job training while they learn the necessary skills. You may use different code systems depending on your job responsibilities. Standard coding systems include International Classification of Diseases codes (ICD-10) and the Healthcare Common Procedure Coding System (HCPCS). You occasionally communicate with physicians to ensure accurate information when necessary.