This continuing education course is designed to help train healthcare professionals in understanding the organization and structure of ICD-10-CM (diagnoses). It compares ICD-9, with ICD-10 diagnoses and teaching the use of General Equivalence Mappings (GEMS). It provides chapter-specific case coding, explaining the changes between the two coding conventions and guidelines for both outpatient and inpatient services. It also trains in the application of ICD-10-CM diagnoses coding.