The Body Part Buttock, Left is identified by number "1" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0YJ1
Inspection of Left Buttock, Percutaneous Endoscopic Approach
Inspection of Left Buttock, External Approach
Inspection of Left Buttock, Percutaneous Approach
Inspection of Left Buttock, Open Approach