The Isotope None is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to DDY5KZ
Hyperthermia of Colon
Laser Interstitial Thermal Therapy of Colon
Plaque Radiation of Colon
Contact Radiation of Colon
Intraoperative Radiation Therapy (IORT) of Colon