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 DD023Z
Beam Radiation of Duodenum using Photons <1 MeV
Beam Radiation of Duodenum using Neutrons
Beam Radiation of Duodenum using Electrons
Beam Radiation of Duodenum using Heavy Particles
Beam Radiation of Duodenum using Photons 1 - 10 MeV
Beam Radiation of Duodenum using Photons >10 MeV
Beam Radiation of Duodenum using Neutron Capture
Beam Radiation of Duodenum using Electrons, Intraoperative