Wiki Arch aortogram, bilateral selective carotid-cervical & cerebral arteriograms

[naturegirll]

Hi, I'm a new student and because we have a 2012 workbook, and a 2013 cpt book, I'm having a problem with coding the above. The answer key gives deleted codes. So far I have:
36216
36221-36226
36222-36224 w/50
36223-36224
The impression was a moderate right and severe left external carotid stenosis,

Thanks for any help!