Reader Question:
Report OATS as Unlisted
Published on Sun Oct 14, 2012
Question: In a patient diagnosed with right ankle osteochondritis dessicans (OCD), our surgeon did the following procedures:Right ankle arthroscopyOsteoarticular transfer system (OATS) procedure, medial talus, with harvest from right kneeMedial malleolar osteotomyResection of loose body, lateral ankle, rightHow do we code these procedures?Colorado SubscriberAnswer: The procedure is open and not arthroscopic as it involves a medial malleolus osteotomy. You report this with code 28446 (Open osteochondral autograft, talus [includes obtaining graft(s)]). For the OATS on the ankle or foot, the only coding option for you is 29999 (Unlisted procedure, arthroscopy). This code will cover the right ankle arthroscopy, OATS procedure, medial talus, with harvest from right knee. For resection of loose body, lateral ankle, right side, you will report 29894 (Arthroscopy, ankle [tibiotalar and fibulotalar joints], surgical; with removal of loose body or foreign body). In addition, you can report the diagnosis code 732.7 (Osteochondritis dissecans).