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 09CB0
Extirpation of Matter from R Mastoid Sinus, Perc Approach
Extirpate of Matter from R Mastoid Sinus, Perc Endo Approach
Extirpation of Matter from R Mastoid Sinus, Open Approach
Extirpation of Matter from Right Mastoid Sinus, Endo