The Treatment Site Ileum is identified by number "4" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to DDY4
Plaque Radiation of Ileum
Laser Interstitial Thermal Therapy of Ileum
Contact Radiation of Ileum
Hyperthermia of Ileum
Intraoperative Radiation Therapy (IORT) of Ileum