The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0FTC0
Resection of Ampulla of Vater, Open Approach
Resection of Ampulla of Vater, Endo
Resection of Ampulla of Vater, Perc Endo Approach
Resection of Ampulla of Vater, Via Opening