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 0NS6X
Reposition Left Temporal Bone, External Approach
Reposition Left Temporal Bone, Open Approach
Reposition Left Temporal Bone, Perc Endo Approach
Reposition Left Temporal Bone with Int Fix, Open Approach
Reposition Left Temporal Bone, Percutaneous Approach
Reposition L Temporal Bone with Int Fix, Perc Endo Approach
Reposition Left Temporal Bone with Int Fix, Perc Approach