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ICD-10-PCS 2027 procedure code

C21G1ZZPlanar Nuclear Medicine Imaging of Myocardium using Technetium 99m (Tc-99m)

✓ Valid for 2027

Short description: Planar Nucl Med Imag of Myocardium using Technetium 99m

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 C21G1ZZ

C21G1ZZ is the ICD-10-PCS code for a planar nuclear medicine imaging procedure on the myocardium using a technetium 99m (tc-99m) approach with none (qualifier: none). In ICD-10-PCS, planar nuclear medicine imaging means introduction of radioactive materials into the body for single plane 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).

For a different body part, codes include C2161ZZ (heart, right and left).

The same procedure with a different approach is coded C21GDZZ (indium 111 (in-111)), C21GSZZ (thallium 201 (tl-201)), C21GYZZ (other radionuclide) and C21GZZZ (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
1Planar Nuclear Medicine Imaging

Introduction of radioactive materials into the body for single plane display of images developed from the capture of radioactive emissions

4. Body Part
GMyocardium
5. Radionuclide
1Technetium 99m (Tc-99m)
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

Different body part

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

  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 C21G1ZZ

Is C21G1ZZ a valid ICD-10-PCS code for 2027?

Yes. C21G1ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for C21G1ZZ?

The CMS GEMs map C21G1ZZ to ICD-9-CM 92.05 (Cardiovascular and hematopoietic scan and radioisotope function study).