Certified Coding Associate (CCA) Practice Exam

Volume 1 of ICD-9-CM is the section that contains the numerical listing of codes representing diseases and injuries. This volume is primarily focused on the tabular list, which organizes the codes in a systematic manner according to the condition they represent. Each code corresponds to a specific disease, injury, or other health-related issue. The organization of the codes allows for easy reference and use in medical coding, which is essential for properly documenting healthcare services and ensuring accurate billing. In contrast, Volume 2 includes the alphabetical index, providing a guide for locating the appropriate code based on the name of the condition. Volume 3 contains codes related specifically to procedures and services, essential for coding surgical and other medical interventions. There is no Volume 4 in the ICD-9-CM system, which further clarifies that Volume 1 is indeed the correct reference for the numerical listings of diseases and injuries. This structure is crucial for coders to understand when navigating the ICD-9-CM coding system for effective medical documentation and billing processes.