AMA CPT® Assistant - 2018 Issue 4 (April)
Surgery: Musculoskeletal System (Q&A) (April 2018)
April 2018 page 10b Surgery: Musculoskeletal System Question: A patient presents with a history of partial knee replacement several years ago. Due to mechanical complication with anteromedial extrusion of the meniscal (polyethylene) bearing (size 5), it was necessary to remove and replace the bearing (unicompartmental arthroplasty) with a size 6. Should code 27599(unlisted) or 27486(revision of a total knee arthroplasty) be reported for this procedure? Answer: The procedure described in the question is "revision" of a partial knee replacement and not a "total" knee replacement. Therefore, it would not be appropriate to report revision of a total knee arthroplasty...
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