Introduce beginning coders to medical coding today with Greens best-selling 3-2-1 CODE IT!, 2021 EDITION and accompanying MindTap digital resources. Updated every year to provide the most recent information, this comprehensive, easy-to-use medical coding resource addresses the latest changes to ICD-10-CM, ICD-10-PCS, CPT® and HCPCS Level II coding sets, including CDCs new ICD-10-CM search tool website and new CPT® 2021 codes and descriptions. Students begin with diagnosis coding then progress to in-depth coding of procedures and services. Separate chapters review inpatient and outpatient coding and differentiate general and specific ICD-10-CM and ICD-10-PCS guidelines. Memorable examples, defined terms and hundreds of printed and digital practice opportunities help readers master concepts. Students also work with computer-assisted coding cases and professional tools to prepare for professional coding credentials.