The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0TT40
Resection of Left Kidney Pelvis, Perc Endo Approach
Resection of Left Kidney Pelvis, Endo
Resection of Left Kidney Pelvis, Via Opening
Resection of Left Kidney Pelvis, Open Approach