ICD-10-PCS Tabular Index · Section D · FY 2026 DU1

DU1 Brachytherapy - Female Reproductive System ICD-10-PCS

The DU1 code range contains 43 ICD-10-PCS codes for Brachytherapy procedures on the female reproductive system. 42 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
43
Procedure Codes
42
Billable Codes
DU1
Characters 1–3
DU
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 DU1 Range 43 codes · 42 billable

43 of 43 shown
  • DU1 Radiation Therapy, Female Reproductive System, BrachytherapyNon-billable header
  • DU1097Z High Dose Rate (HDR) Brachytherapy of Ovary using Cesium 137 (Cs-137)
  • DU1098Z High Dose Rate (HDR) Brachytherapy of Ovary using Iridium 192 (Ir-192)
  • DU1099Z High Dose Rate (HDR) Brachytherapy of Ovary using Iodine 125 (I-125)
  • DU109BZ High Dose Rate (HDR) Brachytherapy of Ovary using Palladium 103 (Pd-103)
  • DU109CZ High Dose Rate (HDR) Brachytherapy of Ovary using Californium 252 (Cf-252)
  • DU109YZ High Dose Rate (HDR) Brachytherapy of Ovary using Other Isotope
  • DU10B6Z Low Dose Rate (LDR) Brachytherapy of Ovary using Cesium 131 (Cs-131)
  • DU10B7Z Low Dose Rate (LDR) Brachytherapy of Ovary using Cesium 137 (Cs-137)
  • DU10B8Z Low Dose Rate (LDR) Brachytherapy of Ovary using Iridium 192 (Ir-192)
  • DU10B9Z Low Dose Rate (LDR) Brachytherapy of Ovary using Iodine 125 (I-125)
  • DU10BB1 Low Dose Rate (LDR) Brachytherapy of Ovary using Palladium 103 (Pd-103), Unidirectional Source
  • DU10BBZ Low Dose Rate (LDR) Brachytherapy of Ovary using Palladium 103 (Pd-103)
  • DU10BCZ Low Dose Rate (LDR) Brachytherapy of Ovary using Californium 252 (Cf-252)
  • DU10BYZ Low Dose Rate (LDR) Brachytherapy of Ovary using Other Isotope
  • DU1197Z High Dose Rate (HDR) Brachytherapy of Cervix using Cesium 137 (Cs-137)
  • DU1198Z High Dose Rate (HDR) Brachytherapy of Cervix using Iridium 192 (Ir-192)
  • DU1199Z High Dose Rate (HDR) Brachytherapy of Cervix using Iodine 125 (I-125)
  • DU119BZ High Dose Rate (HDR) Brachytherapy of Cervix using Palladium 103 (Pd-103)
  • DU119CZ High Dose Rate (HDR) Brachytherapy of Cervix using Californium 252 (Cf-252)
  • DU119YZ High Dose Rate (HDR) Brachytherapy of Cervix using Other Isotope
  • DU11B6Z Low Dose Rate (LDR) Brachytherapy of Cervix using Cesium 131 (Cs-131)
  • DU11B7Z Low Dose Rate (LDR) Brachytherapy of Cervix using Cesium 137 (Cs-137)
  • DU11B8Z Low Dose Rate (LDR) Brachytherapy of Cervix using Iridium 192 (Ir-192)
  • DU11B9Z Low Dose Rate (LDR) Brachytherapy of Cervix using Iodine 125 (I-125)
  • DU11BB1 Low Dose Rate (LDR) Brachytherapy of Cervix using Palladium 103 (Pd-103), Unidirectional Source
  • DU11BBZ Low Dose Rate (LDR) Brachytherapy of Cervix using Palladium 103 (Pd-103)
  • DU11BCZ Low Dose Rate (LDR) Brachytherapy of Cervix using Californium 252 (Cf-252)
  • DU11BYZ Low Dose Rate (LDR) Brachytherapy of Cervix using Other Isotope
  • DU1297Z High Dose Rate (HDR) Brachytherapy of Uterus using Cesium 137 (Cs-137)
  • DU1298Z High Dose Rate (HDR) Brachytherapy of Uterus using Iridium 192 (Ir-192)
  • DU1299Z High Dose Rate (HDR) Brachytherapy of Uterus using Iodine 125 (I-125)
  • DU129BZ High Dose Rate (HDR) Brachytherapy of Uterus using Palladium 103 (Pd-103)
  • DU129CZ High Dose Rate (HDR) Brachytherapy of Uterus using Californium 252 (Cf-252)
  • DU129YZ High Dose Rate (HDR) Brachytherapy of Uterus using Other Isotope
  • DU12B6Z Low Dose Rate (LDR) Brachytherapy of Uterus using Cesium 131 (Cs-131)
  • DU12B7Z Low Dose Rate (LDR) Brachytherapy of Uterus using Cesium 137 (Cs-137)
  • DU12B8Z Low Dose Rate (LDR) Brachytherapy of Uterus using Iridium 192 (Ir-192)
  • DU12B9Z Low Dose Rate (LDR) Brachytherapy of Uterus using Iodine 125 (I-125)
  • DU12BB1 Low Dose Rate (LDR) Brachytherapy of Uterus using Palladium 103 (Pd-103), Unidirectional Source
  • DU12BBZ Low Dose Rate (LDR) Brachytherapy of Uterus using Palladium 103 (Pd-103)
  • DU12BCZ Low Dose Rate (LDR) Brachytherapy of Uterus using Californium 252 (Cf-252)
  • DU12BYZ Low Dose Rate (LDR) Brachytherapy of Uterus using Other Isotope

About the DU1 Code Range

Brachytherapy (ICD-10-PCS root operation DU1) is a form of Radiation Therapy involving the internal placement of radioactive sources directly into or near the target tissue. This technique delivers high doses of radiation to female reproductive organs while minimizing exposure to surrounding structures.

The codes cover brachytherapy directed at the Ovary, Cervix, and Uterus, with distinctions between High Dose Rate (HDR) and Low Dose Rate (LDR) treatments. Specific isotopes like Cesium 137 (Cs-137), Iridium 192 (Ir-192), Iodine 125 (I-125), Palladium 103 (Pd-103), and Californium 252 (Cf-252) are identified, enabling precise coding based on the radioactive source used. Examples include DU1097Z for HDR brachytherapy of the ovary with Cesium 137 and DU119BZ for HDR brachytherapy of the cervix using Palladium 103. These detailed ICD-10-PCS brachytherapy codes assist in accurate documentation and billing for targeted radiation treatments within the female reproductive system.

Questions About This Page

How many billable codes are in the DU1 range?

Of the 43 codes in this range, 42 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 DU1 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 female reproductive 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

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