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ICD-10-PCS 2027 procedure code

GZB0ZZZElectroconvulsive Therapy, Unilateral-Single Seizure

✓ 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 GZB0ZZZ

GZB0ZZZ is the ICD-10-PCS code for a electroconvulsive therapy procedure on the unilateral-single seizure using a none approach with none (qualifier: none). In ICD-10-PCS, electroconvulsive therapy means the application of controlled electrical voltages to treat a mental health disorder.

In plain terms, this corresponds to other electroshock therapy, the ICD-9-CM procedure title it maps to (94.27).

For a different body part, codes include GZB2ZZZ (bilateral-single seizure) and GZB4ZZZ (other electroconvulsive therapy).

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
GMental Health
2. Body System
ZNone
3. Type
BElectroconvulsive Therapy

The application of controlled electrical voltages to treat a mental health disorder

Includes: Includes appropriate sedation and other preparation of the individual

4. Qualifier
0Unilateral-Single Seizure
5. Qualifier
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 94.27Other electroshock therapyapproximate

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 GZB0ZZZ

Is GZB0ZZZ a valid ICD-10-PCS code for 2027?

Yes. GZB0ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for GZB0ZZZ?

The CMS GEMs map GZB0ZZZ to ICD-9-CM 94.27 (Other electroshock therapy).