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
LDR Brachytherapy of Hypopharynx using Cesium 137
LDR Brachytherapy of Hypopharynx using Californium 252
HDR Brachytherapy of Hypopharynx using Oth Isotope
HDR Brachytherapy of Hypopharynx using Pd-103
HDR Brachytherapy of Hypopharynx using Iodine 125
LDR Brachytherapy of Hypopharynx using Pd-103, Unidirect
LDR Brachytherapy of Hypopharynx using Iridium 192
LDR Brachytherapy of Hypopharynx using Iodine 125
LDR Brachytherapy of Hypopharynx using Pd-103
HDR Brachytherapy of Hypopharynx using Californium 252
LDR Brachytherapy of Hypopharynx using Oth Isotope
HDR Brachytherapy of Hypopharynx using Iridium 192
HDR Brachytherapy of Hypopharynx using Cesium 137