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 BR39YZ
MRI of Lumbar Spine using Oth Contrast
MRI of Lumbar Spine using Oth Contrast, Unenh, Enhance
Magnetic Resonance Imaging (MRI) of Lumbar Spine