ICD-10-PCS 2027 procedure code

C22GSZZTomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Thallium 201 (Tl-201)

✓ Valid for 2027

Short description: Tomo Nucl Med Imag of Myocardium using Thallium 201

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 C22GSZZ

C22GSZZ is the ICD-10-PCS code for a tomographic (tomo) nuclear medicine imaging procedure on the myocardium using a thallium 201 (tl-201) approach with none (qualifier: none). In ICD-10-PCS, tomographic (tomo) nuclear medicine imaging means introduction of radioactive materials into the body for three dimensional display of images developed from the capture 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 C22G1ZZ (technetium 99m (tc-99m)), C22GDZZ (indium 111 (in-111)), C22GKZZ (fluorine 18 (F-18)), C22GYZZ (other radionuclide) and C22GZZZ (none).

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: 2Tomographic (Tomo) Nuclear Medicine Imaging
Introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions
4. Body Part: GMyocardium
5. Radionuclide: SThallium 201 (Tl-201)
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 C22GSZZ

Is C22GSZZ a valid ICD-10-PCS code for 2027?: Yes. C22GSZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for C22GSZZ?: The CMS GEMs map C22GSZZ to ICD-9-CM 92.05 (Cardiovascular and hematopoietic scan and radioisotope function study).