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  • Version 2025
  • Billable Code

2025 ICD-10-CM Procedure Code DWY5GDZ

Isotope Administration to Whole Body using Iodine 131 (I-131)

ICD-10-PCS Code:
DWY5GDZ
ICD-10-PCS Code for:
Isotope Administration to Whole Body using Iodine 131
Is Billable?
Yes - Valid for Submission
Code Navigator:

DWY5GDZ is a billable procedure code used to specify the performance of isotope administration to whole body using iodine 131 (i-131). The code is valid for the year 2025 for the submission of HIPAA-covered transactions.

DWY5GDZ PCS Table

In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the radiation therapy section and is part of the anatomical regions body system, classified under other radiation modality. The applicable treatmentsite for this procedure code is whole body.

Position Designation Character Label Procedures Notes
1 Section D Radiation Therapy
2 Body System W Anatomical Regions
3 Modality Y Other Radiation
4 TreatmentSite 5 Whole Body  
5 ModalityQualifier G Isotope Administration
6 Isotope D Iodine 131 (I-131)
7 Qualifier Z None

Explanation:
The value Z is used for the seventh character to indicate that a specific qualifier does not apply to the procedure.

Clinical Classification

Radiation therapy, NEC

CCSR Code: RAD004

Clinical Domain: Radiation Therapy RAD contains 4 categories that include procedures comprising beam radiation, brachytherapy, stereotactic radiosurgery, and other types of radiation therapy.

Convert to ICD-9-PCS

Below are the ICD-9=PCS code(s) that most closely match this ICD-10-PCS code, based on the General Equivalence Mappings (GEMs). This ICD-10-PCS to ICD-9-PCS crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-PCS Code

Code: 9228

Approximate Flag: This is an approximate match. The ICD-9-PCS code reflects a close but not exact equivalent of the ICD-10-PCS procedure.

Other ICD-10-PCS Codes Used for Other Radiation Whole Body


  • DWY57ZZ Contact Radiation of Whole Body

  • DWY58ZZ Hyperthermia of Whole Body

  • DWY5FZZ Plaque Radiation of Whole Body

  • DWY5GFZ Isotope Administration to Whole Body using Phosphorus 32 (P-32)

  • DWY5GGZ Isotope Administration to Whole Body using Strontium 89 (Sr-89)

  • DWY5GHZ Isotope Administration to Whole Body using Strontium 90 (Sr-90)

  • DWY5GYZ Isotope Administration to Whole Body using Other Isotope

What is ICD-10-PCS?

The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.

Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.