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 0CHY0
Insertion of Other Device into Mouth and Throat, Via Opening
Insertion of Other Device into Mouth/Throat, Open Approach
Insertion of Other Device into Mouth and Throat, Endo
Insertion of Airway into Mouth and Throat, Via Opening
Insertion of Other Device into Mouth/Throat, Perc Approach
Insertion of Airway into Mouth and Throat, Endo