Each time that I called BCBS to question this they explained to me that they do
not decide whether something is
covered by the actual name of the procedure, but
by the diagnosis code that your doctor uses when billing it. Everything the doctor does is billed using a numerical sequence that is code for a diagnosis. For example, all of my ultrasounds were billed under the numerical sequence that stood for the diagnosis "habitual aborter unspecified" and "ovulatory disfunction.