IngenixExpert.com for Physicians delivers a real-time code lookup and code book reference online, allowing clinicians, providers and HIM specialists to replace and supplement code books.

Delmar's New 2nd Ed. 3-2-1- Code It is your comprehensive learning resource for coding ICD-9-CM, CPT and HCPCS Level II coding concepts.

AMA Principles of ICD-9-CM Coding  4th ed.is an educational resource to ICD-9-CM coding provides guidelines for identifying and locating the most appropriate codes

Ingenix - Gain a better understanding of the clinical meanings behind codes and referencing essential coding tips before assigning a code.

A Daviss Notes book. This This pocket guide in the handy Daviss Notes format is an easy-to-understand guide to medical billing reference. and E/M coding. Text, tables, and grids help users quickly and accurately find information. CodingNotes will help professionals and students develop a greater understanding of medical billing procedures and enable them to tackle billing and coding with confidence.

FA Davis's Pocket CodingNotes guide in the handy Davis Notes format is an easy-to-understand guide to medical billing reference

2010 Contexo Plain English Descriptions for Coding Terms

2010 Contexo Plain English Descriptions for ICD-9-CM

Ingenix - Gain a better understanding of the technical terminology and intricacies of procedures, along with essential coding tips, before selecting a code.

The Coder's Handbook from PMIC includes over 1,100 pages packed with information designed to save time,  code faster and more accurately, improve  reimbursement and reduce your audit liability.

Ingenix - Understand medical terminology from a coders perspective.