Question:
When billing CPT 78608 for dementia, is modifier PI or PS required?
Answer:
No, modifiers PI and PS are used on claims for positron emission tomography (PET) for oncologic indications only. If a brain PET is performed for dementia, modifiers PI or PS would not be applied to code 78608 (brain imaging, PET; metabolic evaluation). If a brain PET is performed for cancer, then PI or PS would be required with 78608.