A uterine ultrasound is performed in the hospital outpatient department and interpreted and reported by a contracted radiologist. What modifier is used for the services of the radiologist?

It is pertinent to note that modifier 26 is appropriate when the physician supervised or interprets a diagnostic test, even if he or she did not perform the test personally. Also do not append modifier 26 if there is a code to describe only the professional/physician component of a given service (examples are 93010 Electrocardiogram, routine ECG with at least 12 leads, interpretation and report only).