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ICD-10-PCS 2027 procedure code

D91199ZHigh Dose Rate (HDR) Brachytherapy of Nose using Iodine 125 (I-125)

✓ Valid for 2027

Short description: High Dose Rate (HDR) Brachytherapy of Nose 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 D91199Z

D91199Z is the ICD-10-PCS code for a brachytherapy procedure on the nose 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 D91099Z (ear), D91399Z (hypopharynx), D91499Z (mouth), D91599Z (tongue), D91699Z (salivary glands), D91799Z (sinuses) and 5 more.

The same procedure with a different approach is coded D911B9Z (low dose rate (LDR)).

With a different device, use D91197Z (cesium 137 (cs-137)), D91198Z (iridium 192 (ir-192)), D9119BZ (palladium 103 (pd-103)), D9119CZ (californium 252 (cf-252)) and D9119YZ (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
9Ear, Nose, Mouth and Throat
3. Modality
1Brachytherapy
4. Treatment Site
1Nose
5. Modality Qualifier
9High Dose Rate (HDR)
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 D91199Z

Is D91199Z a valid ICD-10-PCS code for 2027?

Yes. D91199Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for D91199Z?

The CMS GEMs map D91199Z to ICD-9-CM 92.23 (Radioisotopic teleradiotherapy).