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 B31SZ
Fluoroscopy of Right Pulmonary Artery using Other Contrast
Fluoroscopy of Right Pulmonary Artery using L Osm Contrast
Fluoroscopy of R Pulm Art using Oth Contrast, Laser Intraop
Fluoroscopy of Right Pulmonary Artery
Fluoroscopy R Pulm Art w L Osm Contrast, Laser Intraop
Fluoroscopy R Pulm Art w H Osm Contrast, Laser Intraop
Fluoroscopy of Right Pulmonary Artery using H Osm Contrast