The Device No Device is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 00QS4Z
Repair Hypoglossal Nerve, Percutaneous Approach
Repair Hypoglossal Nerve, Open Approach
Repair Hypoglossal Nerve, Percutaneous Endoscopic Approach