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 B30KZ
Plain Radiography of Bilateral Upper Extremity Arteries
Plain Radiography of Bi Up Extrem Art using Oth Contrast
Plain Radiography of Bi Up Extrem Art using L Osm Contrast
Plain Radiography of Bi Up Extrem Art using H Osm Contrast