ICD-10-PCS 2027 procedure code
CW73NZZSystemic Nuclear Medicine Therapy of Chest using Phosphorus 32 (P-32)
Short description: Sys Nucl Med Therapy of Chest using Phosphorus 32
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 CW73NZZ
CW73NZZ is the ICD-10-PCS code for a systemic nuclear medicine therapy procedure on the chest using a phosphorus 32 (P-32) 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 CW70NZZ (abdomen) and CW7NNZZ (whole body).
The same procedure with a different approach is coded CW73YZZ (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
- 3Chest
- 5. Radionuclide
- NPhosphorus 32 (P-32)
- 6. Qualifier
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
Different body part
Different radionuclide
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 CW73NZZ
Is CW73NZZ a valid ICD-10-PCS code for 2027?
- Yes. CW73NZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for CW73NZZ?
- The CMS GEMs map CW73NZZ to ICD-9-CM 92.28 (Injection or instillation of radioisotopes).