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 0MN1X
Release Right Shoulder Bursa and Ligament, Open Approach
Release R Shoulder Bursa/Lig, Perc Endo Approach
Release Right Shoulder Bursa and Ligament, Perc Approach
Release Right Shoulder Bursa and Ligament, External Approach