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Inpatient coding professionals review and assign ICD-10-CM and ICD-10-PCS codes to inpatient hospital records. Outpatient/physician coding professionals review and assign ICD-10-CM and CPT®/HCPCS codes to outpatient hospital and physician office records.

The assignment of codes is based on provider and clinician documentation. It is vital the codes assigned by the coding professional are accurate and reflect the condition(s) of the patient and the procedures performed during the hospital stay or encounter. This data is used for many purposes including reimbursement and quality and population health reporting.

Training and Resources

Whether you are new to the coding profession or an experienced coding professional who wants to demonstrate your coding proficiency, AHIMA provides education and training, certification (CCA®, CCS®,and CCS-P® credentials), and other valuable resources to support your lifelong learning and continued advancement.


Medical Coding and Reimbursement Courses

Get the knowledge you need to build a successful health information career with our foundational courses—all online and self-paced. When you complete all 13 courses, you will earn the AHIMA Medical Coding and Reimbursement Micro-credential. If you choose to continue your journey, you can apply academic transfer credits towards certificate or undergraduate degree programs with participating academic institutions.

21 Courses | 24 CEus total

ICD-10-CM Course Collection

This series of courses from the Haugen Consulting Group focus on specific ICD-10-CM topics. 

21 courses | 32 CEUs total

ICD-10-PCS Course Collection

Practice inpatient coding in real-world professional scenarios and step through more than six different settings to complete over 100 online coding exercises using either codebooks or the 3M Encoder. 

10 CEUs

Medical Coding Practice and Career Preparation

Get hands-on medical coding experience with this three-module course addressing coding practice, professional development, and career preparation. Practice coding with access to more than 100 realistic exercises using either code books or the 3M Encoder within a variety of care settings.

Hardcover | 2020 Edition

Clinical Coding Workout

This book challenges coding students and professionals to develop the expert skills required for coding accuracy. 

Hardcover or Spiral | 2021 Edition

ICD-10-CM Code Book

This book will help you execute the International Classification of Diseases, Tenth Revision, Clinical Modification. It has been updated with 2021 codes and coding guidelines

Spiral Bound | 2021 Edition

ICD-10-PCS Code Book, Professional Edition

This book is completely updated with 2021 codes and coding guidelines. It contains only the Index, Tables, and Appendices, creating an accessible and efficient flow for professional coders.

Hardcover | 2021 Edition

Procedural Coding and Reimbursement for Physician Services

This outpatient coding book introduces the basic principles and conventions of CPT® and HCPCS coding while delivering the experience-based knowledge needed to code confidently and efficiently.

Hardcover | 2021 Edition


This outpatient coding book provides an easy-to-use guide to the latest HCPCS codes—helping you locate specific codes, comply with coding regulations, optimize reimbursement, report patient data, code Medicare cases, master ICD-10 coding, and more. 


2 hours 20 min

Inpatient COVID-19 Coding and CDI Training: Cross-train Your Outpatient Coder

Maria Ward, MEd, RHIA, CCS, CCS-P, and Melissa Potts, RN, BSN, CCDS discuss how coding guidelines differ between inpatient and outpatient settings, as well as using COVID-19 guidelines and ICD-10-CM codes appropriately.

1.5 CEUs

FY 2021 ICD-10-CM Code Update

This webinar includes the code changes to cover new codes, revisions, and deletions, as well as any updates to the Official ICD-10-CM Coding Guidelines.To train larger groups, email for bundle pricing.


FY 2021 ICD-10-PCS Code Update

This webinar includes the code changes to cover new codes, revisions, and deletions, as well as any updates to the Official ICD-10-PCS Coding Guidelines.To train larger groups, email for bundle pricing.

Practice Briefs (Members-only)

Learn best practices for topics such as denials prevention and management. 

Toolkits (Members-only)

Toolkits cover topics such as inpatient queries, disaster planning, and coding roundtables. 

ICD-10-PCS Flash Cards, Second Edition

These full-color inpatient coding flash cards include 55 cards that define the 31 Medical and Surgical Root Operations, the 7 Approaches, and 17-character values of each of the Sections of ICD-10-PCS. 

January 27, 2021

COVID-19 ICD-10-CM Coding Timeline for Outpatient Services

When COVID-19 emerged in early 2020, new ICD-10-CM codes to identify this condition were not available. Subsequent ICD-10-CM codes and guidelines for reporting COVID-19 changed many times as the pandemic evolved throughout 2020.

January 19, 2021

Implementing Computer-Assisted Coding at Sarasota Memorial Health Care System

In January of 2019, SMH embarked on a computer-assisted coding implementation to increase the productivity of coders and clinical documentation improvement specialists.


January 11, 2021

Highlights of the 2021 CPT Code Updates

There are a total of 329 CPT code changes for 2021, including 206 code additions, 54 code deletions, and 69 code revisions.


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