So much has to do with how the physician dictates the procedures and what they are actually doing...
Page 179 of CPT2010 Endovascular Repair of Abdominal Aortic Aneurysm is very well written concerning the guidelines for these procedures. Without seeing the operative report it is difficult to figure the circumstances, but I can give a couple suggestions. Endovascular repairs are billed in components based on the type of graft being used, exposure/approach, catheter placements and S&I.
The "abdominal aortogram" during an endo AAA repair is reported as 75952. Secondly, it's highly unlikely that they are performing a "diagnostic" angiography unless this was an emergent repair, which I have only seen done in open sessions.
For the left iliac angioplasty, you need to determine if this was done in the "target zone" to promote outflow of the endograft placed, if so, it is not billable. If it is the common iliac artery, this is usually the case.
Hope this helps!