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 0NS1X
Reposition Frontal Bone, Percutaneous Endoscopic Approach
Reposition Frontal Bone, External Approach
Reposition Frontal Bone with Int Fix, Perc Approach
Reposition Frontal Bone with Int Fix, Open Approach
Reposition Frontal Bone, Percutaneous Approach
Reposition Frontal Bone with Int Fix, Perc Endo Approach
Reposition Frontal Bone, Open Approach