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 0KNBX
Release Left Lower Arm and Wrist Muscle, Open Approach
Release Left Lower Arm and Wrist Muscle, Perc Approach
Release Left Lower Arm and Wrist Muscle, Perc Endo Approach
Release Left Lower Arm and Wrist Muscle, External Approach