Table 1.

Procedural Codes Representing Secondary Surgeries After Index OCA or OAT

CPT Code	Description
27412	Autologous chondrocyte implantation knee
27415	Osteochondral allograft knee open
27416	Osteochondral autograft knee open mosaicplasty
29866	Arthroscopy knee surgical; osteochondral autograft(s) (eg, mosaicplasty) (includes harvesting of the autograft)
29867	Arthroscopy knee surgical; osteochondral allograft (eg, mosaicplasty)
29879	Arthroscopy knee surgical; abrasion arthroplasty (includes chondroplasty where necessary) or multiple drilling or microfracture
27442	Arthroplasty femoral condyles or tibial plateau(s) knee
27443	Arthroplasty femoral condyles or tibial plateau(s) knee; with debridement and partial synovectomy
27446	Arthroplasty knee condyle and plateau; medial or lateral compartment
27447	Arthroplasty knee condyle and plateau; medial and lateral compartments with or without patellar resurfacing (total knee arthroplasty)

CPT, Current Procedural Terminology; OAT, osteochondral autograft transfer; OCA, osteochondral allograft transplant.