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 B5221Z
CT Scan Intracran Sinus w Oth Contrast, Unenh, Enhance
CT Scan of Intracran Sinus using L Osm Contrast
CT Scan of Intracran Sinus using Intravasc Optic Cohere
CT Scan of Intracran Sinus using H Osm Contrast
CT Scan Intracran Sinus w L Osm Contrast, Unenh, Enhance
CT Scan Intracran Sinus w H Osm Contrast, Unenh, Enhance
Computerized Tomography (CT Scan) of Intracranial Sinuses
CT Scan of Intracran Sinus using Oth Contrast