ICD-10-PCS 2027 procedure code

C23GMZZPositron Emission Tomographic (PET) Imaging of Myocardium using Oxygen 15 (O-15)

✓ Valid for 2027

Short description: PET Imag of Myocardium using Oxygen 15

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 C23GMZZ

C23GMZZ is the ICD-10-PCS code for a positron emission tomographic (PET) imaging procedure on the myocardium using an oxygen 15 (O-15) approach with none (qualifier: none). In ICD-10-PCS, positron emission tomographic (PET) imaging means introduction of radioactive materials into the body for three dimensional display of images developed from the simultaneous capture, 180 degrees apart, of radioactive emissions.

In plain terms, this corresponds to cardiovascular and hematopoietic scan and radioisotope function study, the ICD-9-CM procedure title it maps to (92.05).

The same procedure with a different approach is coded C23GKZZ (fluorine 18 (F-18)), C23GQZZ (rubidium 82 (rb-82)), C23GRZZ (nitrogen 13 (N-13)) and C23GYZZ (other radionuclide).

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: CNuclear Medicine
2. Body System: 2Heart
3. Type: 3Positron Emission Tomographic (PET) Imaging
Introduction of radioactive materials into the body for three dimensional display of images developed from the simultaneous capture, 180 degrees apart, of radioactive emissions
4. Body Part: GMyocardium
5. Radionuclide: MOxygen 15 (O-15)
6. Qualifier: ZNone
7. Qualifier: ZNone

Other versions of this procedure

Different radionuclide

ICD-9-CM equivalent

Converter →

92.05Cardiovascular and hematopoietic scan and radioisotope function studyapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about C23GMZZ

Is C23GMZZ a valid ICD-10-PCS code for 2027?: Yes. C23GMZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for C23GMZZ?: The CMS GEMs map C23GMZZ to ICD-9-CM 92.05 (Cardiovascular and hematopoietic scan and radioisotope function study).