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 0KNMX
Release Perineum Muscle, External Approach
Release Perineum Muscle, Percutaneous Endoscopic Approach
Release Perineum Muscle, Open Approach
Release Perineum Muscle, Percutaneous Approach