The Contrast None is identified by letter "Z" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to BQ3KZ
Magnetic Resonance Imaging (MRI) of Left Calcaneus
MRI of L Calcaneus using Oth Contrast, Unenh, Enhance
MRI of L Calcaneus using Oth Contrast