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 BN09Z
Plain Radiography of Bi Temporomand Jt using Oth Contrast
Plain Radiography of Bilateral Temporomandibular Joints
Plain Radiography of Bi Temporomand Jt using L Osm Contrast
Plain Radiography of Bi Temporomand Jt using H Osm Contrast