DWY5GDZIsotope Administration to Whole Body using Iodine 131 (I-131)
- Billable / Specific Code
DWY5GDZ is a billable ICD-10-PCS procedure code for Isotope Administration to Whole Body using Iodine 131 (I-131). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Radiation therapy, NEC.
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 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 |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About DWY5GDZ
Is DWY5GDZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Isotope Administration to Whole Body using Iodine 131 (I-131) on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in DWY5GDZ mean?
The code breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character W is the Body System (Anatomical Regions); the 3rd character Y is the Modality (Other Radiation); the 4th character 5 is the TreatmentSite (Whole Body); the 5th character G is the ModalityQualifier (Isotope Administration); the 6th character D is the Isotope (Iodine 131 (I-131)); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of DWY5GDZ?
Under the General Equivalence Mappings, Isotope Administration to Whole Body using Iodine 131 (I-131) crosswalks to ICD-9-PCS 92.28 (Injection or instillation of radioisotopes). The mapping is approximate, so confirm it fits the documentation.
