Our physician performed a medial parapatellar arthrotomy, retracting the patella over enough to visualize the central chondral defect of the trochlea. Using continuous irrigation, a microfracture using a power pick device was performed. The holes were spaced 2 to 3 mm apart. At this point, peripheral blood was obtained and spun in a centrifuge, and platelet-rich plasma (PRP) was transferred to the back table. One cc of PRP and 1 cc of injectable allograft cartilage paste was mixed. The mixture was then implanted into the cartilage defect. Would it be appropriate to report CPT codes 27415 and 0232T for this procedure? ...

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Note:  The following article synopsis was NOT provided by the AMA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article reviews a knee cartilage repair case and discusses coding considerations for a procedure that combined arthrotomy, microfracture, platelet-rich plasma preparation, and implantation of an injectable cartilage/allograft mixture. It is useful for coders, billers, and orthopedic practices that need to understand how to distinguish a specific open graft service from an unlisted knee/femur procedure in the context of this type of operative report. The article also notes documentation requirements when reporting an unlisted code.

Why This Topic Matters

Accurate reporting in complex orthopedic cartilage procedures depends on matching the operative work to the billed code set and on supporting unlisted procedures with adequate documentation. This article helps readers identify the general category of service described and avoid misclassification of a knee cartilage repair case.

Codes Discussed

• CPT: 27415
• CPT: 0232T
• CPT: 27599

Modifiers Discussed

• CPT: 52

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