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 BF36YZ
Magnetic Resonance Imaging (MRI) of Liver and Spleen
MRI of Liver & Spleen using Oth Contrast
MRI of Liver & Spleen using Oth Contrast, Unenh, Enhance