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ICD-10-PCS 2027 procedure code

GZGZZZZNarcosynthesis

✓ 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 GZGZZZZ

GZGZZZZ is the ICD-10-PCS code for a narcosynthesis procedure on the none using a none approach with none (qualifier: none). In ICD-10-PCS, narcosynthesis means administration of intravenous barbiturates in order to release suppressed or repressed thoughts.

In plain terms, this corresponds to Narcoanalysis, the ICD-9-CM procedure title it maps to (94.21).

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
GNarcosynthesis

Administration of intravenous barbiturates in order to release suppressed or repressed thoughts

4. Qualifier
ZNone
5. Qualifier
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

ICD-9-CM equivalent

Converter →

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 GZGZZZZ

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

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

What is the ICD-9 procedure code for GZGZZZZ?

The CMS GEMs map GZGZZZZ to ICD-9-CM 94.21 (Narcoanalysis).