The Contrast Low Osmolar is identified by number "1" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to B3091
Plain Radiography of R Ext Carotid using L Osm Contrast
Plain Radiography of Right External Carotid Artery
Plain Radiography of R Ext Carotid using H Osm Contrast
Plain Radiography of R Ext Carotid using Oth Contrast