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 D7001
Beam Radiation of Bone Marrow using Electrons
Beam Radiation of Bone Marrow using Photons >10 MeV
Beam Radiation of Bone Marrow using Neutron Capture
Beam Radiation of Bone Marrow using Electrons, Intraop
Beam Radiation of Bone Marrow using Heavy Particles
Beam Radiation of Bone Marrow using Neutrons
Beam Radiation of Bone Marrow using Photons <1 MeV
Beam Radiation of Bone Marrow using Photons 1 - 10 MeV