Ask Dr. Z

This topic is continually discussed. I'm aware that the question has been answered in the past several times. My question is, has there been any change in correct coding of a procedure that is cancelled because the initial imaging does not find the abnormality expected? If a paracentesis is ordered, but the initial ultrasound does not find enough ascites to aspirate, is 49083 coded for the facility (with modifier -73) and professional billing (with modifier -52), or is it 76705-26 for professional and 49083-73 for facility? If the expected abdominal mass is not found with imaging, is the biopsy billed for both the hospital and radiologist? If following CMS guidelines and other sources, the professional code is what was done the facility may code the intended procedure with appropriate modifier. Yet, others feel the facility and professional codes need to match. Your opinion along with any references you use is much appreciated.