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ICD-10-PCS 2027 procedure code

DF12B9ZLow Dose Rate (LDR) Brachytherapy of Bile Ducts using Iodine 125 (I-125)

✓ Valid for 2027

Short description: LDR Brachytherapy of Bile Ducts using Iodine 125

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About DF12B9Z

DF12B9Z is the ICD-10-PCS code for a brachytherapy procedure on the bile ducts using a low dose rate (LDR) approach with iodine 125 (I-125) (qualifier: none).

In plain terms, this corresponds to Radioisotopic teleradiotherapy, the ICD-9-CM procedure title it maps to (92.23).

For a different body part, codes include DF10B9Z (liver), DF11B9Z (gallbladder) and DF13B9Z (pancreas).

The same procedure with a different approach is coded DF1299Z (high dose rate (HDR)).

With a different device, use DF12B6Z (cesium 131 (cs-131)), DF12B7Z (cesium 137 (cs-137)), DF12B8Z (iridium 192 (ir-192)), DF12BBZ (palladium 103 (pd-103)), DF12BCZ (californium 252 (cf-252)) and DF12BYZ (other isotope).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
DRadiation Therapy
2. Body System
FHepatobiliary System and Pancreas
3. Modality
1Brachytherapy
4. Treatment Site
2Bile Ducts
5. Modality Qualifier
BLow Dose Rate (LDR)
6. Isotope
9Iodine 125 (I-125)
7. Qualifier
ZNone

Other versions of this procedure

Different modality qualifier

ICD-9-CM equivalent

Converter →
  • 92.23Radioisotopic teleradiotherapyapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about DF12B9Z

Is DF12B9Z a valid ICD-10-PCS code for 2027?

Yes. DF12B9Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for DF12B9Z?

The CMS GEMs map DF12B9Z to ICD-9-CM 92.23 (Radioisotopic teleradiotherapy).