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 0DN50
Release Esophagus, Endo
Release Esophagus, Percutaneous Endoscopic Approach
Release Esophagus, Via Natural or Artificial Opening
Release Esophagus, Percutaneous Approach
Release Esophagus, Open Approach