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 DG050Z
Beam Radiation of Thyroid using Neutrons
Beam Radiation of Thyroid using Electrons, Intraoperative
Beam Radiation of Thyroid using Electrons
Beam Radiation of Thyroid using Neutron Capture
Beam Radiation of Thyroid using Photons 1 - 10 MeV
Beam Radiation of Thyroid using Photons <1 MeV
Beam Radiation of Thyroid using Photons >10 MeV