Seeking advice on MRI coding in a situation where a patient comes in for an MRI of the brain including orbits with & without contrast - since this can all be done in one study but adding 3-5 additional scans for orbits - should this be billed with one CPT code 70553 or should we be using 2 CPT codes with 70553 brain & 70543 orbits. I've heard several different opions on this and would appreciate some solid info. Thank you!