When it comes to coverage and reimbursement, there are gatekeepers all over the place, but some keep bigger gates than others. Following are two stories about the Centers for Medicare & Medicaid Services and how it has kept its gate in recent weeks. CMS not wild about MILD CMS recently took it upon itself to review percutaneous, image-guided lumbar decompression for stenosis, proposing on Oct. 17 that it sees the evidence as insufficient to prompt coverage. Among the references found in the coverage...