Orthopedic Coding Alert

Reader questions:

Include synovectomies with larger procedure

Question: Our orthopedist performed several procedures during a session:

• Knee arthroscopy with partial menisectomy, debrided with chondromalacia, and three compartment synovectomy

• Grade 3 chondromalacia debridement

• Partial menisectomy of complex posterior horn medial meniscus

• Debridement of radial tear lateral meninscus.

What's the best way to code this service?

Texas Subscriber

Answer: Start with 29880 (Arthroscopy, knee, surgical; with meniscectomy [medial and lateral, including any meniscal shaving]), which includes the synovectomies in the medial and lateral components. Because 29880 doesn't represent the patello-femoral compartment, report 29875 (... synovectomy, limited [e.g., plica or shelf resection] [separate procedure]) with modifier 59 (Distinct procedural service).

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