Master the skills needed for medical coding with Green's 3-2-1 CODE IT! 2025 Edition. Updated to reflect the most recent code sets and coding guidelines, this easy-to-use guide is ideal for anyone just beginning medical coding. Updates incorporate the latest changes to the ICD-10-CM, ICD-10-PCS, CPT and HCPCS Level II code sets. The text's well-organized, intuitive approach begins with diagnosis coding before focusing on coding procedures and services. Separate chapters differentiate inpatient and outpatient coding and general and specific ICD-10-CM, ICD-10-PCS, HCPCS Level II and CPT coding and guidelines. Examples, clearly defined terms and printed and digital practice activities help you master concepts. Computer-assisted coding cases and professional tools such as encoder software help you prepare for entry-level coding positions and professional coding credentials.