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 B42GZ
Computerized Tomography (CT Scan) of L Low Extrem Art
CT Scan of L Low Extrem Art using Intravasc Optic Cohere
CT Scan of L Low Extrem Art using H Osm Contrast
CT Scan of L Low Extrem Art using Oth Contrast
CT Scan of L Low Extrem Art using L Osm Contrast