The Body Part Chest Wall is identified by number "8" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0WJ8
Inspection of Chest Wall, External Approach
Inspection of Chest Wall, Percutaneous Approach
Inspection of Chest Wall, Percutaneous Endoscopic Approach
Inspection of Chest Wall, Open Approach