DW11B7ZLow Dose Rate (LDR) Brachytherapy of Head and Neck using Cesium 137 (Cs-137)
- Billable / Specific Code
DW11B7Z is a billable ICD-10-PCS procedure code for Low Dose Rate (LDR) Brachytherapy of Head and Neck using Cesium 137 (Cs-137). 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 | W | Anatomical Regions |
| 3 | Modality | 1 | Brachytherapy |
| 4 | TreatmentSite | 1 | Head and Neck |
| 5 | ModalityQualifier | B | Low Dose Rate (LDR) |
| 6 | Isotope | 7 | Cesium 137 (Cs-137) |
| 7 | Qualifier | Z | None |
Clinical Classification (CCSR)
AHRQ groups DW11B7Z into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for DW11B7Z under the General Equivalence Mappings.
Similar Procedure Codes
Questions About DW11B7Z
Is DW11B7Z a billable code?
Yes. DW11B7Z is a complete seven-character ICD-10-PCS code, specific enough to report Low Dose Rate (LDR) Brachytherapy of Head and Neck using Cesium 137 (Cs-137) on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in DW11B7Z mean?
DW11B7Z 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 1 is the Modality (Brachytherapy); the 4th character 1 is the TreatmentSite (Head and Neck); the 5th character B is the ModalityQualifier (Low Dose Rate (LDR)); the 6th character 7 is the Isotope (Cesium 137 (Cs-137)); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of DW11B7Z?
Under the General Equivalence Mappings, Low Dose Rate (LDR) Brachytherapy of Head and Neck using Cesium 137 (Cs-137) crosswalks to ICD-9-PCS 92.23. The mapping is approximate, so confirm it fits the documentation.
