Job Description Assign codes to diagnoses and procedures, using ICD (International Classification of Diseases) and CPT (Current Procedural Terminology) codes. Enter coding information in an online program. Ensure codes are accurate and sequenced correctly in accordance with government and insurance regulations. Follow up with the provider on any documentation that is insufficient or unclear. Communicate with other clinical staff regarding documentation. Search for information in cases where the coding is complex or unusual. Maintain continuing education requirements.