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 0CCP0
Extirpation of Matter from Tonsils, Percutaneous Approach
Extirpation of Matter from Tonsils, Open Approach
Extirpation of Matter from Tonsils, External Approach