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ICD-10-PCS 2027 procedure code

D91DBCZLow Dose Rate (LDR) Brachytherapy of Nasopharynx using Californium 252 (Cf-252)

✓ Valid for 2027

Short description: LDR Brachytherapy of Nasopharynx using Californium 252

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 D91DBCZ

D91DBCZ is the ICD-10-PCS code for a brachytherapy procedure on the nasopharynx using a low dose rate (LDR) approach with californium 252 (cf-252) (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 D910BCZ (ear), D911BCZ (nose), D913BCZ (hypopharynx), D914BCZ (mouth), D915BCZ (tongue), D916BCZ (salivary glands) and 5 more.

The same procedure with a different approach is coded D91D9CZ (high dose rate (HDR)).

With a different device, use D91DB6Z (cesium 131 (cs-131)), D91DB7Z (cesium 137 (cs-137)), D91DB8Z (iridium 192 (ir-192)), D91DB9Z (iodine 125 (I-125)), D91DBBZ (palladium 103 (pd-103)) and D91DBYZ (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
DNasopharynx
5. Modality Qualifier
BLow Dose Rate (LDR)
6. Isotope
CCalifornium 252 (Cf-252)
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 D91DBCZ

Is D91DBCZ a valid ICD-10-PCS code for 2027?

Yes. D91DBCZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for D91DBCZ?

The CMS GEMs map D91DBCZ to ICD-9-CM 92.23 (Radioisotopic teleradiotherapy).