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 0DTB0
Resection of Ileum, Via Natural or Artificial Opening
Resection of Ileum, Open Approach
Resection of Ileum, Endo
Resection of Ileum, Percutaneous Endoscopic Approach