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 0SNHX
Release Right Tarsal Joint, Open Approach
Release Right Tarsal Joint, Percutaneous Endoscopic Approach
Release Right Tarsal Joint, Percutaneous Approach
Release Right Tarsal Joint, External Approach