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 0CTS0
Resection of Larynx, Open Approach
Resection of Larynx, Percutaneous Endoscopic Approach
Resection of Larynx, Endo
Resection of Larynx, Via Natural or Artificial Opening