The Isotope Cesium 137 (Cs is identified by number "7" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to D913B7
HDR Brachytherapy of Hypopharynx using Iodine 125
HDR Brachytherapy of Hypopharynx using Pd-103
HDR Brachytherapy of Hypopharynx using Cesium 137
LDR Brachytherapy of Hypopharynx using Iodine 125
LDR Brachytherapy of Hypopharynx using Californium 252
LDR Brachytherapy of Hypopharynx using Pd-103, Unidirect
LDR Brachytherapy of Hypopharynx using Oth Isotope
HDR Brachytherapy of Hypopharynx using Californium 252
LDR Brachytherapy of Hypopharynx using Cesium 137
LDR Brachytherapy of Hypopharynx using Pd-103
HDR Brachytherapy of Hypopharynx using Iridium 192
HDR Brachytherapy of Hypopharynx using Oth Isotope
LDR Brachytherapy of Hypopharynx using Iridium 192