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 0RNQX
Release Right Carpal Joint, Open Approach
Release Right Carpal Joint, Percutaneous Approach
Release Right Carpal Joint, External Approach
Release Right Carpal Joint, Percutaneous Endoscopic Approach