Code 76770, Complete Retroperitoneal Ultrasound, Is Assigned When

Code 76770, Complete retroperitoneal ultrasound, is assigned when:

A) the images include the liver, gallbladder, common bile duct, pancreas, spleen, kidneys, and upper abdominal aorta and inferior vena cava
B) the images include the kidneys, abdominal aorta, common iliac artery origins, and inferior vena cava
C) when less than the definition of a complete retroperitoneal ultrasound is documented
D) the images taken are less than the definition of a complete retroperitoneal ultrasound