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 0KN40
Release Tongue, Palate, Pharynx Muscle, Open Approach
Release Tongue, Palate, Pharynx Muscle, Perc Approach
Release Tongue, Palate, Pharynx Muscle, Perc Endo Approach
Release Tongue, Palate, Pharynx Muscle, External Approach