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 BR20Z
Computerized Tomography (CT Scan) of Cervical Spine
CT Scan of Cerv Spine using L Osm Contrast
CT Scan of Cerv Spine using Oth Contrast
CT Scan of Cerv Spine using H Osm Contrast