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