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 BN29Z
CT Scan of Bi Temporomand Jt using Oth Contrast
Computerized Tomography (CT Scan) of Bi Temporomand Jt
CT Scan of Bi Temporomand Jt using H Osm Contrast
CT Scan of Bi Temporomand Jt using L Osm Contrast