Deleted ICD-10-PCS Code GZB3ZZZ Electroconvulsive Therapy, Bilateral-Multiple Seizure

Mental Health›None›Electroconvulsive Therapy
  • Deleted — Not Valid for Claims
  • Valid FY 2020–2024
  • Deleted in FY 2025
CMS Source: CMS ICD-10-PCS code files FY 2020–2024 and the ICD-10-PCS conversion table.
Do not report GZB3ZZZ for inpatient discharges on or after October 1, 2024. Claims with a deleted code are rejected. Use one of the replacement codes below.

GZB3ZZZ is a deleted ICD-10-PCS code, removed from the code set effective October 1, 2024. It was valid for electroconvulsive Therapy, Bilateral-Multiple Seizure on inpatient discharges from October 1, 2019 through September 30, 2024, and later discharges must use a current code. The CMS conversion table maps it to GZB2ZZZ.

Replacement Codes for GZB3ZZZ

The CMS ICD-10-PCS conversion table maps GZB3ZZZ to this code. Confirm the choice against the procedure documentation and the code page's table.

  • GZB2ZZZ Electroconvulsive Therapy, Bilateral-Single Seizure

Current Codes Starting With GZB

Active FY 2027 codes that share the first 3 characters of GZB3ZZZ (same table).

  • GZB0ZZZ Electroconvulsive Therapy, Unilateral-Single Seizure
  • GZB2ZZZ Electroconvulsive Therapy, Bilateral-Single Seizure
  • GZB4ZZZ Other Electroconvulsive Therapy

Code History

FY 2020AddedAdded to the ICD-10-PCS code setEffective October 1, 2019.
FY 2024Last fiscal year the code was validValid for discharges through September 30, 2024.
FY 2025DeletedRemoved from the ICD-10-PCS code setEffective October 1, 2024.

Questions About GZB3ZZZ

Is GZB3ZZZ still a valid ICD-10-PCS code?

No. GZB3ZZZ was deleted from ICD-10-PCS effective October 1, 2024, with the FY 2025 code set. It cannot be reported for inpatient discharges on or after that date.

What replaced GZB3ZZZ?

The CMS ICD-10-PCS conversion table maps GZB3ZZZ to GZB2ZZZ. Confirm it matches the procedure documentation before you use it; a conversion is a starting point, not an automatic substitution.

Can I still use GZB3ZZZ for older discharges?

Yes, for inpatient discharges from October 1, 2019 through September 30, 2024. ICD-10-PCS codes are assigned by the code set in effect on the date of discharge, so a corrected or late claim for a discharge in that window still uses GZB3ZZZ.