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 D712B7
LDR Brachytherapy of Spleen using Pd-103, Unidirect
Low Dose Rate (LDR) Brachytherapy of Spleen using Iodine 125
HDR Brachytherapy of Spleen using Californium 252
HDR Brachytherapy of Spleen using Cesium 137
HDR Brachytherapy of Spleen using Oth Isotope
HDR Brachytherapy of Spleen using Iridium 192
LDR Brachytherapy of Spleen using Iridium 192
High Dose Rate (HDR) Brachytherapy of Spleen using Pd-103
Low Dose Rate (LDR) Brachytherapy of Spleen using Cesium 137
LDR Brachytherapy of Spleen using Oth Isotope
LDR Brachytherapy of Spleen using Californium 252
HDR Brachytherapy of Spleen using Iodine 125
Low Dose Rate (LDR) Brachytherapy of Spleen using Pd-103