The Qualifier None is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to BT33YZ
Magnetic Resonance Imaging (MRI) of Bilateral Kidneys
MRI of Bi Kidney using Oth Contrast, Unenh, Enhance
MRI of Bi Kidney using Oth Contrast