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 BR17Z
Fluoroscopy of Thoracic Spine using Low Osmolar Contrast
Fluoroscopy of Thoracic Spine
Fluoroscopy of Thoracic Spine using High Osmolar Contrast
Fluoroscopy of Thoracic Spine using Other Contrast