Idaho Subscriber
Answer: Nuclear medicine code 78201 (Liver imaging; static only) includes the term "static only" to differentiate it from 78202 (... with vascular flow).
The service 78201 describes involves a special camera taking planar images of the liver by detecting gamma radiation from a radioisotope injected into a peripheral vein and extracted by the liver.
Code 78202 describes a procedure that also requires imaging by detecting the radioisotope radiation but adds imaging of blood flow by labeling red blood cells.