Ask Dr. Z

I have a case in which the catheter was placed in the right brachiocephalic artery and documented as below. "Right brachiocephalic artery: Cervical view: The catheter was advanced into the right brachiocephalic artery, and angiography was performed over the cervical region. The cervical view of the right brachiocephalic artery shows tortuous origin of the right common carotid artery and tortuous origin of the right subclavian artery. The origin of the right vertebral artery is not well visualized. There is no significant steno-occlusive disease noted." If the left subclavian was also selected and the left vertebral was viewed and documented, would I only report code 36225 (unilateral)? Or would I also be able to report code 36221 for the right side?