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How would the following be coded? With 62329?

"IR FLUORO NEEDLE/LUMBAR/OPENING PRESSURE. Procedure: Patient was placed left lateral decubitus on the interventional table. Under fluoroscopy, a left paramedian approach to the L4-5 interlaminar space was selected and the overlying skin anesthetized with several mL of 1% lidocaine. A 20 gauge Sprotte needle was advanced under fluoroscopic vision into the thecal sac with return of clear CSF. The opening pressure was measured at 15 cm water. 12 mL of CSF was collected in four aliquots and sent to the clinical laboratory for testing per the referring physician's specifications. The needle was removed and a bandage placed. The patient tolerated the procedure well without immediate complication. Fluoro Time: 1.3 minutes Findings: Stored fluoroscopic images show the needle positioned with its tip in the spinal canal at the level of L4-5. Impression: Successful lumbar puncture for CSF analysis, as detailed above. [Opening pressure: 15 cm water.]"