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 BW2GZ
CT Scan of Pelvic Region using L Osm Contrast
CT Scan Pelvic Region w H Osm Contrast, Unenh, Enhance
CT Scan of Pelvic Region using Oth Contrast
CT Scan of Pelvic Region using H Osm Contrast
Computerized Tomography (CT Scan) of Pelvic Region
CT Scan Pelvic Region w L Osm Contrast, Unenh, Enhance
CT Scan of Pelvic Region using Oth Contrast, Unenh, Enhance