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 0CTM0
Resection of Pharynx, Endo
Resection of Pharynx, Via Natural or Artificial Opening
Resection of Pharynx, Percutaneous Endoscopic Approach
Resection of Pharynx, Open Approach