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 B419Z
Fluoroscopy Lumbar Art w H Osm Contrast, Laser Intraop
Fluoroscopy of Lumbar Art using Oth Contrast, Laser Intraop
Fluoroscopy of Lumbar Arteries
Fluoroscopy of Lumbar Arteries using Low Osmolar Contrast
Fluoroscopy of Lumbar Arteries using High Osmolar Contrast
Fluoroscopy Lumbar Art w L Osm Contrast, Laser Intraop
Fluoroscopy of Lumbar Arteries using Other Contrast