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 0WFCX
Fragmentation in Mediastinum, Open Approach
Fragmentation in Mediastinum, Perc Endo Approach
Fragmentation in Mediastinum, External Approach
Fragmentation in Mediastinum, Percutaneous Approach