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 0FJ4X
Inspection of Gallbladder, External Approach
Inspection of Gallbladder, Percutaneous Endoscopic Approach
Inspection of Gallbladder, Endo
Inspection of Gallbladder, Open Approach
Inspection of Gallbladder, Percutaneous Approach