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 0MNGX
Release Rib(s) Bursa and Ligament, Open Approach
Release Rib(s) Bursa and Ligament, Percutaneous Approach
Release Rib(s) Bursa and Ligament, External Approach
Release Rib(s) Bursa and Ligament, Perc Endo Approach