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 BR04Z
Plain Radiography of Cerv Facet Jt using H Osm Contrast
Plain Radiography of Cerv Facet Jt using L Osm Contrast
Plain Radiography of Cerv Facet Jt using Oth Contrast
Plain Radiography of Cervical Facet Joint(s)