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 BH3HZ
Magnetic Resonance Imaging (MRI) of Abd & Pelvis Subcu
MRI of Abd & Pelvis Subcu using Oth Contrast
MRI of Abd & Pelvis Subcu using Oth Contrast, Unenh, Enhance