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ICD-10-PCS 2027 procedure code

DBY28ZZHyperthermia of Lung

✓ Valid for 2027

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 DBY28ZZ

DBY28ZZ is the ICD-10-PCS code for a other radiation procedure on the lung using a hyperthermia approach with none (qualifier: none).

In plain terms, this corresponds to hyperthermia for treatment of cancer, the ICD-9-CM procedure title it maps to (99.85).

For a different body part, codes include DBY08ZZ (trachea), DBY18ZZ (bronchus), DBY58ZZ (pleura), DBY68ZZ (mediastinum), DBY78ZZ (chest wall) and DBY88ZZ (diaphragm).

The same procedure with a different approach is coded DBY27ZZ (contact radiation) and DBY2FZZ (plaque radiation).

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
YOther Radiation
4. Treatment Site
2Lung
5. Modality Qualifier
8Hyperthermia
6. Isotope
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 99.85Hyperthermia for treatment of cancerapproximate

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 DBY28ZZ

Is DBY28ZZ a valid ICD-10-PCS code for 2027?

Yes. DBY28ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for DBY28ZZ?

The CMS GEMs map DBY28ZZ to ICD-9-CM 99.85 (Hyperthermia for treatment of cancer).