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 0CFCX
Fragmentation in Left Parotid Duct, External Approach
Fragmentation in Left Parotid Duct, Open Approach
Fragmentation in Left Parotid Duct, Via Opening
Fragmentation in Left Parotid Duct, Percutaneous Approach