ICD-10-PCS 2027 procedure code
CW7NGZZSystemic Nuclear Medicine Therapy of Whole Body using Iodine 131 (I-131)
Short description: Sys Nucl Med Therapy of Whole Body using Iodine 131
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 CW7NGZZ
CW7NGZZ is the ICD-10-PCS code for a systemic nuclear medicine therapy procedure on the whole body using an iodine 131 (I-131) approach with none (qualifier: none). In ICD-10-PCS, systemic nuclear medicine therapy means introduction of unsealed radioactive materials into the body for treatment.
In plain terms, this corresponds to injection or instillation of radioisotopes, the ICD-9-CM procedure title it maps to (92.28).
For a different body part, codes include CW7GGZZ (thyroid).
The same procedure with a different approach is coded CW7N8ZZ (samarium 153 (sm-153)), CW7NNZZ (phosphorus 32 (P-32)), CW7NPZZ (strontium 89 (sr-89)) and CW7NYZZ (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
- WAnatomical Regions
- 3. Type
- 7Systemic Nuclear Medicine Therapy
Introduction of unsealed radioactive materials into the body for treatment
- 4. Body Part
- NWhole Body
- 5. Radionuclide
- GIodine 131 (I-131)
- 6. Qualifier
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different body part
ICD-9-CM equivalent
Converter →- 92.28Injection or instillation of radioisotopesapproximate
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 CW7NGZZ
Is CW7NGZZ a valid ICD-10-PCS code for 2027?
- Yes. CW7NGZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for CW7NGZZ?
- The CMS GEMs map CW7NGZZ to ICD-9-CM 92.28 (Injection or instillation of radioisotopes).