DF11BYZLow Dose Rate (LDR) Brachytherapy of Gallbladder using Other Isotope
- Billable / Specific Code
DF11BYZ is a billable ICD-10-PCS procedure code for Low Dose Rate (LDR) Brachytherapy of Gallbladder using Other Isotope. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Brachytherapy.
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 | F | Hepatobiliary System and Pancreas |
| 3 | Modality | 1 | Brachytherapy |
| 4 | TreatmentSite | 1 | Gallbladder |
| 5 | ModalityQualifier | B | Low Dose Rate (LDR) |
| 6 | Isotope | Y | Other Isotope |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2026 ICD-10-PCS Alphabetic Index entries lead to DF11BYZ:
Clinical Classification (CCSR)
AHRQ groups DF11BYZ into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for DF11BYZ under the General Equivalence Mappings.
Code History
- DF11B6Z — LDR Brachytherapy of Gallbladder using Cesium 131
Similar Procedure Codes
Questions About DF11BYZ
Is DF11BYZ a billable code?
Yes. DF11BYZ is a complete seven-character ICD-10-PCS code, specific enough to report Low Dose Rate (LDR) Brachytherapy of Gallbladder using Other Isotope on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in DF11BYZ mean?
DF11BYZ breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character F is the Body System (Hepatobiliary System and Pancreas); the 3rd character 1 is the Modality (Brachytherapy); the 4th character 1 is the TreatmentSite (Gallbladder); the 5th character B is the ModalityQualifier (Low Dose Rate (LDR)); the 6th character Y is the Isotope (Other Isotope); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of DF11BYZ?
Under the General Equivalence Mappings, Low Dose Rate (LDR) Brachytherapy of Gallbladder using Other Isotope crosswalks to ICD-9-PCS 92.23. The mapping is approximate, so confirm it fits the documentation.
