The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 09Q1X
Repair Left External Ear, Percutaneous Endoscopic Approach
Repair Left External Ear, External Approach
Repair Left External Ear, Open Approach
Repair Left External Ear, Percutaneous Approach