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 BT31ZZ
Magnetic Resonance Imaging (MRI) of Right Kidney
MRI of R Kidney using Oth Contrast, Unenh, Enhance
MRI of R Kidney using Oth Contrast