This pаtient presented with internаl derаngement оf the left knee. After satisfactоry anesthesia was administered fоr the arthroscopic procedure, the left lower extremity was prepped and draped in a sterile fashion. Routine portals were made in the knee. We first looked at the medial compartment which showed a complex small tear of the posterior horn of the medial meniscus. This was debrided using a 4.0 meniscal shaver. There was an area of grade 4 chondromalacia on the proximal medial distal femur and this was all the way down to bone. There was also evidence of chondromalacia over the patellofemoral joint of grade 4. This area was drilled with a 0.45 K-wire. Multiple drill holes were placed in an attempt to get some scar tissue to form. The notch area was normal and lateral compartment normal. Following microfracture technique, the knee was irrigated, each portal was closed with 4-0 nylon and the patient was taken to recovery. What CPT® codes are reported?