The Qualifier None 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 B5081Z
Plain Radiography of Superior Vena Cava using H Osm Contrast
Plain Radiography of Superior Vena Cava using Other Contrast
Plain Radiography of Superior Vena Cava using L Osm Contrast