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 B930YZ
MRI of Ear using Oth Contrast, Unenh, Enhance
Magnetic Resonance Imaging (MRI) of Ear
Magnetic Resonance Imaging (MRI) of Ear using Other Contrast