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 0KNCX
Release Right Hand Muscle, Percutaneous Approach
Release Right Hand Muscle, External Approach
Release Right Hand Muscle, Percutaneous Endoscopic Approach
Release Right Hand Muscle, Open Approach