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 0K540
Destruction of Tongue, Palate, Pharynx Muscle, Open Approach
Destruction of Tongue/Palate/Phar Muscle, Perc Endo Approach
Destruction of Tongue, Palate, Pharynx Muscle, Perc Approach