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 DD000Z
Beam Radiation of Esophagus using Photons <1 MeV
Beam Radiation of Esophagus using Electrons
Beam Radiation of Esophagus using Photons 1 - 10 MeV
Beam Radiation of Esophagus using Electrons, Intraoperative
Beam Radiation of Esophagus using Neutron Capture
Beam Radiation of Esophagus using Photons >10 MeV
Beam Radiation of Esophagus using Neutrons
Beam Radiation of Esophagus using Heavy Particles