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 0KNPX
Release Left Hip Muscle, External Approach
Release Left Hip Muscle, Open Approach
Release Left Hip Muscle, Percutaneous Approach
Release Left Hip Muscle, Percutaneous Endoscopic Approach