Karen Zaderej
Analyst · Cantor Fitzgerald.
Yes. No, thank you. So our site of care, we -- in our core accounts, we tend to be Level 1, Level 2 or Level 3 trauma centers as the majority, and then some specialty hospitals where you may see it may be driven in that case by a breast center or it might be a military center that does nerve repair. So those are typically the best targets for us as well as, obviously, academic teaching hospitals.
There are, however, in our core accounts, some freestanding ambulatory surgery centers. And that really is an artifact of the fact that the threshold is $100,000. That could be one active surgeon who's doing nerve repair. Obviously, if it is a freestanding ambulatory surgery center, it doesn't have the same potential as a large academic center. So when I say our biggest centers are over $1 million today, that's not going to be the ambulatory surgery center. That's going to be a Level 1, Level 2, Level 3, trauma center, hospital or academic center.
So our focus, again, is continuing to build those high potential accounts, building out the core accounts and continue to drive that business. Now when I talk about a Level 1 trauma center, that's going to be a mix of inpatient and outpatient procedures. So we do see actually a fair amount of the surgery that's done in trauma is an outpatient procedure. Where that's possible, they're going to try and move that patient through the hospital in under 24 hours and technically be classified as an outpatient procedure.
The ambulatory surgery centers are the ones that we have not typically been as focused on. And as I said, we have some, but we've not typically been as focused on that. Having said that, we have done quite a bit of reimbursement work. It's been an economic challenge for ambulatory surgery centers predominantly. We've done a lot of reimbursement work to make sure that there is a new structure where they can economically have it make sense for them to do nerve repair in these freestanding centers.
And so under the new coding and payment structure that CMS has set up, it is now economically viable and certainly an attractive overall health care alternative to move these procedures into these ambulatory surgery centers. And we are starting to see some of that migration happen. It has been a migration, not a revolution. But we see -- quarter-over-quarter, we continue to see growth of the procedures that are done in these ambulatory surgery centers, and we do expect for the future that, that will continue.