The way I look to see if the physician needs to be present when a test is performed is go to the Physician Fee Schedule Search on the CMS website. Do a Payment Policy Indicator Search and one of the columns will be PHYS SUPV.

Put in the code you want to search. I put in code 93289 for Interrogation of ICD and it comes up with Physician Supervision of 02. To know what 02 means look at the How to Use The Searchable Medicare Physician Fee Schedule (MPFS) link.

On page 26 it says that 02 = Procedure must be performed under the direct supervision of a physician. CMS's definition of direct supervision is:
Direct supervision in the office setting means the physician must be present in the office suite and immediately available to furnish assistance and direction throughout the performance of the procedure. It does not mean that the physician must be present in the room when the procedure is performed.

So it looks like for ICD interrogatin the physician does not have to be in the room when this is being done but needs to be in the office.

link for physician fee schedule:
https://www.cms.gov/apps/physician-f...agreement.aspx

link for Ho to Use The Searchable Medicare Physician Fee Schedule:
http://www.cms.gov/Outreach-and-Educ..._ICN901344.pdf