Just because Medicare says you can do a procedure doesn't mean you should. Many money-losing cases are spread across the spectrum of specialties on the ASC approved procedures list (see "Choose Your Cases Wisely"). Unless you know your case costs or have a carveout, you won't know, for example, that CPT 29888, ACL reconstruction, is a procedure you're bound to lose money on: Screws, washers and anchors alone can cost more than $600. Medicare's reimbursement: $510.