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 DBY0KZ
Contact Radiation of Trachea
Plaque Radiation of Trachea
Hyperthermia of Trachea
Laser Interstitial Thermal Therapy of Trachea