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 09CC0
Extirpate of Matter from L Mastoid Sinus, Perc Endo Approach
Extirpation of Matter from Left Mastoid Sinus, Endo
Extirpation of Matter from Left Mastoid Sinus, Open Approach
Extirpation of Matter from Left Mastoid Sinus, Perc Approach