A. What is the meaning of each of the modifiers used in the following case example? A multi-trauma patient had a bilateral knee procedure as part of team surgery following a motorcycle crash. The orthopedic surgeon also reconstructed the patient's pelvis and left wrist. 1. 99 : 2. 66 : 3. 51 : 4. 5n. Supply the correct codes and modifiers for these cases. B. A surgeon administers a regional Bier block and then monitors the patient and the block while redairina the flexor tendon of the forearm. C. Primary care provider performs a frontal and lateral chest X-ray and observes a mass. The patient is sent to a pulmonologist, who, on the same day, repeats the frontal and lateral chest X-ray. How should the pulmonologist report the X-rav service? D. A day after surgery for a knee replacement, the patient develops an infection in the surgical area and is returned to the operating room for debridement. Which modifier is attached to the second procedure