The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0MNDX
Release Lower Spine Bursa and Ligament, External Approach
Release Lower Spine Bursa and Ligament, Perc Approach
Release Lower Spine Bursa and Ligament, Open Approach
Release Lower Spine Bursa and Ligament, Perc Endo Approach