Kathleen A. Mueller, RN, CPC, CCS-P, QMGC, QMC, is a health care consultant with over 35 years in health care experience including ICU/CCU nursing, physician office administration, GI claims submission, and adjudication and seminar instruction. She is the owner of AskMueller Consulting, LLC, providing consulting services for physicians nationwide. Kathy is a nationally known speaker and the author of many multi-specialty medical and surgical coding workbooks. She has a great amount of experience in gastroenterology, surgical subspecialties and pediatric subspecialties. Kathy is the co-editor of the ASGE Coding Primer and answers the coding email for ASGE.