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 DH022Z
Beam Radiation of Face Skin using Photons 1 - 10 MeV
Beam Radiation of Face Skin using Photons >10 MeV
Beam Radiation of Face Skin using Neutrons
Beam Radiation of Face Skin using Electrons
Beam Radiation of Face Skin using Heavy Particles
Beam Radiation of Face Skin using Electrons, Intraoperative
Beam Radiation of Face Skin using Photons <1 MeV
Beam Radiation of Face Skin using Neutron Capture