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 0FF7X
Fragmentation in Common Hepatic Duct, Open Approach
Fragmentation in Common Hepatic Duct, Percutaneous Approach
Fragmentation in Common Hepatic Duct, Via Opening
Fragmentation in Common Hepatic Duct, External Approach
Fragmentation in Common Hepatic Duct, Perc Endo Approach
Fragmentation in Common Hepatic Duct, Endo