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 0NQBX
Repair Nasal Bone, Open Approach
Repair Nasal Bone, Percutaneous Endoscopic Approach
Repair Nasal Bone, Percutaneous Approach
Repair Nasal Bone, External Approach