Could someone please help me out with placement of modifiers.
Claim was submitted as below. Line 2, 4, 5 and 6 denied. Invalid modifier, included in another procedure.
Line 1 99213 25 M76.52 Patellar tendinitis left knee, M25.362 Other instability left knee, M25.361 Other instability right knee
Line 2 20611 M76.52 Patellar tendinitis left knee
Line 3 20611 50 M76.51 Patellar tendinitis Right Knee
Line 4 29530 59 M76.52 Patellar tendinitis left knee
Line 5 29530 50 59 M76.51 Patellar tendinitis Right
Line 6 J2000 M76.52 Patellar tendinitis left knee
Thank you