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 B50K1
Plain Radiography of Left Renal Vein using Other Contrast
Plain Radiography of Left Renal Vein using L Osm Contrast
Plain Radiography of Left Renal Vein using H Osm Contrast