3-2-1 Code It! 2025 Edition

3-2-1 Code It! 2025 Edition is a hands-on medical coding text built for learners who need a clear path through the major code systems used in current practice. Michelle A. Green structures the material so readers move from diagnosis coding into procedure, service, and reimbursement topics with a steady classroom-friendly pace.

Built for the real workflow of medical coding

The book brings together ICD-10-CM, ICD-10-PCS, CPT, and HCPCS Level II in one organized course text. That makes it especially useful for students who need to see how the major systems connect rather than treating each one as an isolated set of rules.

From outpatient coding to inpatient and reimbursement topics

The table of contents shows a wide span of coverage: coding basics, chapter-specific ICD-10-CM guidance, inpatient hospital coding, HCPCS Level II, CPT evaluation and management, CPT surgery, radiology, pathology and laboratory, medicine, and insurance and reimbursement. The result is a text that can support multiple course paths while still keeping the material sequenced in a logical way.

What stands out in this edition

• Updated for the 2025 code sets
• Organized for beginning coders and classroom use
• Combines diagnosis, procedure, and reimbursement instruction
• Designed to support step-by-step learning and practice

Who it serves

This edition is a strong fit for students in medical coding programs, health information management coursework, and learners preparing for entry-level coding work. It is also a practical choice for instructors who need a single text that can be adapted across outpatient, inpatient, and CPT-focused course segments.

If you want a current, structured coding textbook that reflects the terminology and code sets used in today’s training environment, this edition belongs on the shortlist.