ICD-10-PCS 2027 procedure code
DF1099ZHigh Dose Rate (HDR) Brachytherapy of Liver using Iodine 125 (I-125)
Short description: High Dose Rate (HDR) Brachytherapy of Liver 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 DF1099Z
DF1099Z is the ICD-10-PCS code for a brachytherapy procedure on the liver using a high dose rate (HDR) 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 DF1199Z (gallbladder), DF1299Z (bile ducts) and DF1399Z (pancreas).
The same procedure with a different approach is coded DF10B9Z (low dose rate (LDR)).
With a different device, use DF1097Z (cesium 137 (cs-137)), DF1098Z (iridium 192 (ir-192)), DF109BZ (palladium 103 (pd-103)), DF109CZ (californium 252 (cf-252)) and DF109YZ (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
- 0Liver
- 5. Modality Qualifier
- 9High Dose Rate (HDR)
- 6. Isotope
- 9Iodine 125 (I-125)
- 7. Qualifier
- ZNone
Other versions of this procedure
Different treatment site
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
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about DF1099Z
Is DF1099Z a valid ICD-10-PCS code for 2027?
- Yes. DF1099Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for DF1099Z?
- The CMS GEMs map DF1099Z to ICD-9-CM 92.23 (Radioisotopic teleradiotherapy).