ICD-10-PCS Tabular Index · Section D · FY 2026 DT1

DT1 Brachytherapy - Urinary System ICD-10-PCS

The DT1 code range contains 57 ICD-10-PCS codes for Brachytherapy procedures on the urinary system. 56 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
57
Procedure Codes
56
Billable Codes
DT1
Characters 1–3
DT
Parent Body System

Root Operation Definition

Brachytherapy: A type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor.

ICD-10-PCS

Codes in the DT1 Range 57 codes · 56 billable

57 of 57 shown
  • DT1 Radiation Therapy, Urinary System, BrachytherapyNon-billable header
  • DT1097Z High Dose Rate (HDR) Brachytherapy of Kidney using Cesium 137 (Cs-137)
  • DT1098Z High Dose Rate (HDR) Brachytherapy of Kidney using Iridium 192 (Ir-192)
  • DT1099Z High Dose Rate (HDR) Brachytherapy of Kidney using Iodine 125 (I-125)
  • DT109BZ High Dose Rate (HDR) Brachytherapy of Kidney using Palladium 103 (Pd-103)
  • DT109CZ High Dose Rate (HDR) Brachytherapy of Kidney using Californium 252 (Cf-252)
  • DT109YZ High Dose Rate (HDR) Brachytherapy of Kidney using Other Isotope
  • DT10B6Z Low Dose Rate (LDR) Brachytherapy of Kidney using Cesium 131 (Cs-131)
  • DT10B7Z Low Dose Rate (LDR) Brachytherapy of Kidney using Cesium 137 (Cs-137)
  • DT10B8Z Low Dose Rate (LDR) Brachytherapy of Kidney using Iridium 192 (Ir-192)
  • DT10B9Z Low Dose Rate (LDR) Brachytherapy of Kidney using Iodine 125 (I-125)
  • DT10BB1 Low Dose Rate (LDR) Brachytherapy of Kidney using Palladium 103 (Pd-103), Unidirectional Source
  • DT10BBZ Low Dose Rate (LDR) Brachytherapy of Kidney using Palladium 103 (Pd-103)
  • DT10BCZ Low Dose Rate (LDR) Brachytherapy of Kidney using Californium 252 (Cf-252)
  • DT10BYZ Low Dose Rate (LDR) Brachytherapy of Kidney using Other Isotope
  • DT1197Z High Dose Rate (HDR) Brachytherapy of Ureter using Cesium 137 (Cs-137)
  • DT1198Z High Dose Rate (HDR) Brachytherapy of Ureter using Iridium 192 (Ir-192)
  • DT1199Z High Dose Rate (HDR) Brachytherapy of Ureter using Iodine 125 (I-125)
  • DT119BZ High Dose Rate (HDR) Brachytherapy of Ureter using Palladium 103 (Pd-103)
  • DT119CZ High Dose Rate (HDR) Brachytherapy of Ureter using Californium 252 (Cf-252)
  • DT119YZ High Dose Rate (HDR) Brachytherapy of Ureter using Other Isotope
  • DT11B6Z Low Dose Rate (LDR) Brachytherapy of Ureter using Cesium 131 (Cs-131)
  • DT11B7Z Low Dose Rate (LDR) Brachytherapy of Ureter using Cesium 137 (Cs-137)
  • DT11B8Z Low Dose Rate (LDR) Brachytherapy of Ureter using Iridium 192 (Ir-192)
  • DT11B9Z Low Dose Rate (LDR) Brachytherapy of Ureter using Iodine 125 (I-125)
  • DT11BB1 Low Dose Rate (LDR) Brachytherapy of Ureter using Palladium 103 (Pd-103), Unidirectional Source
  • DT11BBZ Low Dose Rate (LDR) Brachytherapy of Ureter using Palladium 103 (Pd-103)
  • DT11BCZ Low Dose Rate (LDR) Brachytherapy of Ureter using Californium 252 (Cf-252)
  • DT11BYZ Low Dose Rate (LDR) Brachytherapy of Ureter using Other Isotope
  • DT1297Z High Dose Rate (HDR) Brachytherapy of Bladder using Cesium 137 (Cs-137)
  • DT1298Z High Dose Rate (HDR) Brachytherapy of Bladder using Iridium 192 (Ir-192)
  • DT1299Z High Dose Rate (HDR) Brachytherapy of Bladder using Iodine 125 (I-125)
  • DT129BZ High Dose Rate (HDR) Brachytherapy of Bladder using Palladium 103 (Pd-103)
  • DT129CZ High Dose Rate (HDR) Brachytherapy of Bladder using Californium 252 (Cf-252)
  • DT129YZ High Dose Rate (HDR) Brachytherapy of Bladder using Other Isotope
  • DT12B6Z Low Dose Rate (LDR) Brachytherapy of Bladder using Cesium 131 (Cs-131)
  • DT12B7Z Low Dose Rate (LDR) Brachytherapy of Bladder using Cesium 137 (Cs-137)
  • DT12B8Z Low Dose Rate (LDR) Brachytherapy of Bladder using Iridium 192 (Ir-192)
  • DT12B9Z Low Dose Rate (LDR) Brachytherapy of Bladder using Iodine 125 (I-125)
  • DT12BB1 Low Dose Rate (LDR) Brachytherapy of Bladder using Palladium 103 (Pd-103), Unidirectional Source
  • DT12BBZ Low Dose Rate (LDR) Brachytherapy of Bladder using Palladium 103 (Pd-103)
  • DT12BCZ Low Dose Rate (LDR) Brachytherapy of Bladder using Californium 252 (Cf-252)
  • DT12BYZ Low Dose Rate (LDR) Brachytherapy of Bladder using Other Isotope
  • DT1397Z High Dose Rate (HDR) Brachytherapy of Urethra using Cesium 137 (Cs-137)
  • DT1398Z High Dose Rate (HDR) Brachytherapy of Urethra using Iridium 192 (Ir-192)
  • DT1399Z High Dose Rate (HDR) Brachytherapy of Urethra using Iodine 125 (I-125)
  • DT139BZ High Dose Rate (HDR) Brachytherapy of Urethra using Palladium 103 (Pd-103)
  • DT139CZ High Dose Rate (HDR) Brachytherapy of Urethra using Californium 252 (Cf-252)
  • DT139YZ High Dose Rate (HDR) Brachytherapy of Urethra using Other Isotope
  • DT13B6Z Low Dose Rate (LDR) Brachytherapy of Urethra using Cesium 131 (Cs-131)
  • DT13B7Z Low Dose Rate (LDR) Brachytherapy of Urethra using Cesium 137 (Cs-137)
  • DT13B8Z Low Dose Rate (LDR) Brachytherapy of Urethra using Iridium 192 (Ir-192)
  • DT13B9Z Low Dose Rate (LDR) Brachytherapy of Urethra using Iodine 125 (I-125)
  • DT13BB1 Low Dose Rate (LDR) Brachytherapy of Urethra using Palladium 103 (Pd-103), Unidirectional Source
  • DT13BBZ Low Dose Rate (LDR) Brachytherapy of Urethra using Palladium 103 (Pd-103)
  • DT13BCZ Low Dose Rate (LDR) Brachytherapy of Urethra using Californium 252 (Cf-252)
  • DT13BYZ Low Dose Rate (LDR) Brachytherapy of Urethra using Other Isotope

About the DT1 Code Range

The ICD-10-PCS root operation Brachytherapy (code DT1) refers to delivering targeted radiation therapy directly within or near a tumor site. This method is classified under Radiation Therapy and is used to treat various parts of the Urinary System.

Brachytherapy involves inserting radioactive sources close to or inside the affected organ to maximize radiation dose locally while limiting exposure to adjacent tissues. In the urinary system, examples include high dose rate (HDR) or low dose rate (LDR) brachytherapy applied to organs such as the Kidney, Ureter, Bladder, and Urethra. The procedure codes differentiate based on the isotope used, such as Cesium 137 (Cs-137), Iridium 192 (Ir-192), Iodine 125 (I-125), Palladium 103 (Pd-103), Californium 252 (Cf-252), or other isotopes. For instance, code DT1097Z specifies HDR brachytherapy of the kidney using Cs-137, while DT12BB1 indicates LDR brachytherapy of the bladder using unidirectional Pd-103.

Accurately coding these urinary system brachytherapy procedures reflects the precise radiation technique and isotope employed, crucial for treatment planning and reimbursement.

Questions About This Page

How many billable codes are in the DT1 range?

Of the 57 codes in this range, 56 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.

What does the DT1 range classify?

The range classifies Brachytherapy procedures, a type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor, performed on the urinary system. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.

Related References

All ICD-10-PCS SectionsAll of Radiation Therapy (D)All of Body System DTICD-10-PCS Code LookupICD-10-CM Codes ListMS-DRG ReferenceMedicare Code Edits

Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.