Doc went in for what they thought might be a loose body in the elbow. Instead they found a chondral injury of the right radial head (post-op Dx). He attempted to do a chondroplasty of the elbow but aborted that because the size of the shaver tip made it impossible. My question is: do I charge for a diagnostic arthroscpoy or do I charge for the chondroplasty with a -52 modifier? What dx should I use with whatever code I go with?