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 B20F1
Plain Radiography of Other Bypass Graft using H Osm Contrast
Plain Radiography of Other Bypass Graft using Other Contrast
Plain Radiography of Other Bypass Graft using L Osm Contrast