Some clarification on G0289 from Federal Register, Vol. 67, No. 251/Tuesday, December 31, 2002/Rules and Regulations-
"G0289- Arthroscopy, knee, surgical, for removal of loose body, foreign body, debridement/shaving of articular cartilage (chondroplasty) at the time of other surgical knee arthroscopy in a different compartment of the same knee."
G0289 can only be used to replace 29877 or 29874, not 28975 or 29876.
Of note, according to the Federal Register report, "The code may be reported twice (or with a unit of two) if the physician performs these procedures in two compartments in addition to the compartment where the main procedure was performed."
For example- if the physician did a medial meniscectomy, lateral meniscectomy, and a patellofemoral chondroplasty, you can bill it as 29880, G0289.
However- if a loose body was removed in addition to that from any of those compartments, you cannot bill G0289, even though AAOS says you can bill 29874 in the same compartment when the loose body is greater than 5mm. The reason for this is that Medicare was incredibly specific in NOT wanting us to bill G0289 for any procedure done in the same compartment as the main procedure being performed.
BUT- (one last example)- if the physician did a medial meniscectomy (836.0), patellofemoral chondroplasty (717.7) and an excision of a loose body that's 7mm (717.6), you can bill it as 29881, G0289, G0289-59.
Hope that helps!!!