Alaska Subscriber
Answer: No modifiers are necessary for the pelvis because the standard view shows both sides. -RT/-LT modifiers would therefore not be necessary. You can use either 72170 (Radiologic examination, pelvis; one or two views) or 72190 ( complete, minimum of three views).
Additionally, more specialized views of the pelvis are inlet-outlet, which also do not require -RT/-LT modifiers. Isolated views of the hip would, however, require the use of the -RT/-LT modifiers.