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 B231ZZ
Magnetic Resonance Imaging (MRI) of Mult Cor Art
MRI of Mult Cor Art using Oth Contrast, Unenh, Enhance
MRI of Mult Cor Art using Oth Contrast