G0289
G0289 is "arthroscopy, knee,surgical, for removal of loose body, foreign body, debridement/shaving of articular cartilage (chondroplasty) at the time of other surgical knee arhtroscopy in a different compartment of the same knee"
It is in your HCPCS book.
you cannot acheive 29876 with this surg...(as far as coding) 29876 is 2 or more compartments, but you cannot count medial or lateral because you are doing meniscectomy in those compartments and it is included. You can try billing the 29875 for the PF compartment but it may be denied becasue it is a "separate procedure" which typically means if you are doing anything else on same limb, site, then you cannot bill "separate procedure" and most payors almost automatically deny "separate procedures".
It is not neccessarily that you cannot bill for it............it is that you probably won't be paid for it(29875)