Wiki 59 question on 27422 29877 59

Lake View, Alabama
Best answers
If the surgeon did a Arthroscopic patella chondroplasty 29877 as well as an open medial patellofemoral ligament reconstruction with gracilis autograft 27422 would i append a 59 the arthroscopic 29877 even though it is not gloabal? i was told by someone that anytime there is a arthroscopic and an open procedure there should be a 59 on the arthroscopic, is this true?
The Coding Companion states that when 27422 is performed with another separately indentifiable procedure, the highest dollar value code is listed as the primary procedure and subsequent procedures are appended with modifier 51. Hope this helps!