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 0KN2X
Release Right Neck Muscle, Percutaneous Endoscopic Approach
Release Right Neck Muscle, Open Approach
Release Right Neck Muscle, External Approach
Release Right Neck Muscle, Percutaneous Approach