The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0NQ50
Repair Right Temporal Bone, Percutaneous Approach
Repair Right Temporal Bone, Percutaneous Endoscopic Approach
Repair Right Temporal Bone, External Approach
Repair Right Temporal Bone, Open Approach