3-2-1 Code It! 3rd Edition is your comprehensive learning resource for coding, combining ICD-9-CM, CPT, and HCPCS Level II coding concepts into one convenient package for beginning and more experienced coders alike. This resource includes information about career opportunities for coders, stresses the importance of joining professional organizations and obtaining credentials, and explains how to develop opportunities for career advancement. When you are ready to earn a coding credential, 3-2-1 Code It! 3rd Edition will help you prepare and practice for your professional career.