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ICD-10-PCS 2027 procedure code

DB1599ZHigh Dose Rate (HDR) Brachytherapy of Pleura using Iodine 125 (I-125)

✓ Valid for 2027

Short description: HDR Brachytherapy of Pleura 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 DB1599Z

DB1599Z is the ICD-10-PCS code for a brachytherapy procedure on the pleura 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 DB1099Z (trachea), DB1199Z (bronchus), DB1299Z (lung), DB1699Z (mediastinum), DB1799Z (chest wall) and DB1899Z (diaphragm).

The same procedure with a different approach is coded DB15B9Z (low dose rate (LDR)).

With a different device, use DB1597Z (cesium 137 (cs-137)), DB1598Z (iridium 192 (ir-192)), DB159BZ (palladium 103 (pd-103)), DB159CZ (californium 252 (cf-252)) and DB159YZ (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
BRespiratory System
3. Modality
1Brachytherapy
4. Treatment Site
5Pleura
5. Modality Qualifier
9High Dose Rate (HDR)
6. Isotope
9Iodine 125 (I-125)
7. Qualifier
ZNone

Other versions of this procedure

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 DB1599Z

Is DB1599Z a valid ICD-10-PCS code for 2027?

Yes. DB1599Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for DB1599Z?

The CMS GEMs map DB1599Z to ICD-9-CM 92.23 (Radioisotopic teleradiotherapy).