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 D0063Z
Beam Radiation of Spinal Cord using Photons 1 - 10 MeV
Beam Radiation of Spinal Cord using Heavy Particles
Beam Radiation of Spinal Cord using Electrons, Intraop
Beam Radiation of Spinal Cord using Neutron Capture
Beam Radiation of Spinal Cord using Photons >10 MeV
Beam Radiation of Spinal Cord using Electrons
Beam Radiation of Spinal Cord using Photons <1 MeV
Beam Radiation of Spinal Cord using Neutrons