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ICD-10-PCS 2027 procedure code

CG42YZZNonimaging Nuclear Medicine Uptake of Thyroid Gland using Other Radionuclide

✓ Valid for 2027

Short description: Nonimag Nucl Med Uptake Thyroid Gland 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 CG42YZZ

CG42YZZ is the ICD-10-PCS code for a nonimaging nuclear medicine uptake procedure on the thyroid gland 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 thyroid scan and radioisotope function studies, the ICD-9-CM procedure title it maps to (92.01).

For a different body part, codes include CG4YYZZ (endocrine system).

The same procedure with a different approach is coded CG421ZZ (technetium 99m (tc-99m)), CG42FZZ (iodine 123 (I-123)) and CG42GZZ (iodine 131 (I-131)).

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
2Thyroid Gland
5. Radionuclide
YOther Radionuclide
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

Different body part

ICD-9-CM equivalent

Converter →
  • 92.01Thyroid scan and 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 CG42YZZ

Is CG42YZZ a valid ICD-10-PCS code for 2027?

Yes. CG42YZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for CG42YZZ?

The CMS GEMs map CG42YZZ to ICD-9-CM 92.01 (Thyroid scan and radioisotope function studies).