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 09JJX
Inspection of Left Ear, Open Approach
Inspection of Left Ear, Endo
Inspection of Left Ear, Via Natural or Artificial Opening
Inspection of Left Ear, Percutaneous Endoscopic Approach
Inspection of Left Ear, External Approach
Inspection of Left Ear, Percutaneous Approach