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 0TTB0
Resection of Bladder, Via Natural or Artificial Opening
Resection of Bladder, Endo
Resection of Bladder, Percutaneous Endoscopic Approach
Resection of Bladder, Open Approach