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ICD-10-PCS 2027 procedure code

CG4YYZZNonimaging Nuclear Medicine Uptake of Endocrine System using Other Radionuclide

✓ Valid for 2027

Short description: Nonimag Nucl Med Uptake Endocrine Sys w Oth Radionuclide

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 CG4YYZZ

CG4YYZZ is the ICD-10-PCS code for a nonimaging nuclear medicine uptake procedure on the endocrine system using an other radionuclide approach with none (qualifier: none). In ICD-10-PCS, nonimaging nuclear medicine uptake means introduction of radioactive materials into the body for measurements of organ function, from the detection of radioactive emissions.

In plain terms, this corresponds to other radioisotope function studies, the ICD-9-CM procedure title it maps to (92.09).

For a different body part, codes include CG42YZZ (thyroid gland).

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
GEndocrine System
3. Type
4Nonimaging Nuclear Medicine Uptake

Introduction of radioactive materials into the body for measurements of organ function, from the detection of radioactive emissions

4. Body Part
YEndocrine System
5. Radionuclide
YOther Radionuclide
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

Different body part

ICD-9-CM equivalent

Converter →
  • 92.09Other radioisotope function studiesapproximate

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 CG4YYZZ

Is CG4YYZZ a valid ICD-10-PCS code for 2027?

Yes. CG4YYZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for CG4YYZZ?

The CMS GEMs map CG4YYZZ to ICD-9-CM 92.09 (Other radioisotope function studies).