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 H Osm Contrast
Plain Radiography of Bi Up Extrem Art using L Osm Contrast
Plain Radiography of Bi Up Extrem Art using Oth Contrast