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 B424Z
CT Scan of Sup Mesent Art using L Osm Contrast
CT Scan of Sup Mesent Art using Intravasc Optic Cohere
Computerized Tomography (CT Scan) of Sup Mesent Art
CT Scan of Sup Mesent Art using Oth Contrast
CT Scan of Sup Mesent Art using H Osm Contrast