The Contrast None is identified by letter "Z" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to B517Z
Fluoroscopy of L Subclav Vein using Oth Contrast, Guidance
Fluoroscopy of L Subclav Vein using L Osm Contrast, Guidance
Fluoroscopy of Left Subclavian Vein, Guidance
Fluoroscopy of Left Subclavian Vein using L Osm Contrast
Fluoroscopy of Left Subclavian Vein using H Osm Contrast
Fluoroscopy of Left Subclavian Vein using Other Contrast
Fluoroscopy of L Subclav Vein using H Osm Contrast, Guidance
Fluoroscopy of Left Subclavian Vein