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 09C30
Extirpate of Matter from R Ext Auditory Canal, Open Approach
Extirpate of Matter from R Ext Auditory Canal, Perc Approach
Extirpation of Matter from R Ext Auditory Canal, Endo
Extirpate matter from R Ext Auditory Canal, Perc Endo
Extirpate matter from R Ext Auditory Canal, Extern
Extirpation of Matter from R Ext Auditory Canal, Via Opening