Exam CPC topic 7 question 42 discussion

A 67-year-old male presents with DJD and spondylolisthesis at L4-L5 The patient is placed prone on the operating table and, after induction of general anesthesia, the lower back is sterilely prepped and draped. One incision was made over L1-L5. This was confirmed with a probe under fluoroscopy. Laminectomies are done at vertebral segments L4 and L5 with facetectomies to relieve pressure to the nerve roots. Allograft was packed in the gutters from L1-L5 for a posterior arthrodesis. Pedicle screws were placed at L2, L3, and L4. The construct was copiously irrigated and muscle; fascia and skin were closed in layers.
Select the procedure codes for this scenario.