The ICD-9-CM Expert for Physicians, Volumes 1 & 2, is Ingenix's premier ICD-9-CM resource that is as smart and dependable as the coders who use it. With critical coding and reimbursement edit alerts on the same page as the code you want, you'll be able to code with increased precision and efficiency. Plus, you'll receive email updates throughout the year informing you of crucial changes to the ICD-9-CM code set, including any April 1 changes, should there be any. Ingenix Edge Exclusive color coding and symbols for all critical coding and reimbursement alerts. Improve coding accuracy and efficiency with intuitive symbols and color coding that alert you to crucial coding and reimbursement issues. Ingenix Edge AHA's Coding Clinic for ICD-9-CM references for official coding advice. AHA's Coding Clinic provides the official coding advice that every coder in every health care setting must follow for ICD-9-CM. It's not just for hospitals. Ingenix Edge Symbols identify V co