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 BB3GYZ
Magnetic Resonance Imaging (MRI) of Lung Apices
MRI of Lung Apices using Oth Contrast
MRI of Lung Apices using Oth Contrast, Unenh, Enhance