The Modality Qualifier Photons 1 is identified by number "1" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to DF021
Beam Radiation of Bile Ducts using Neutrons
Beam Radiation of Bile Ducts using Photons <1 MeV
Beam Radiation of Bile Ducts using Neutron Capture
Beam Radiation of Bile Ducts using Photons 1 - 10 MeV
Beam Radiation of Bile Ducts using Heavy Particles
Beam Radiation of Bile Ducts using Electrons
Beam Radiation of Bile Ducts using Photons >10 MeV
Beam Radiation of Bile Ducts using Electrons, Intraoperative