DW1YBB1Low Dose Rate (LDR) Brachytherapy of Lower Extremity using Palladium 103 (Pd-103), Unidirectional Source

Radiation Therapy›Anatomical Regions›Brachytherapy

Billable / Specific Code

ICD-10-PCS DW1YBB1

CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.

DW1YBB1 is a billable ICD-10-PCS procedure code for Low Dose Rate (LDR) Brachytherapy of Lower Extremity using Palladium 103 (Pd-103), Unidirectional Source. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026).

Code Identity

ICD-10-PCS Code

DW1YBB1

Billable Status

Yes — Valid for Submission

Code Describes

Low Dose Rate (LDR) Brachytherapy of Lower Extremity using Palladium 103 (Pd-103), Unidirectional Source

Parent Code

DW1

Short Description

LDR Brachytherapy of Low Extrem using Pd-103, Unidirect

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	Y	Lower Extremity
5	ModalityQualifier	B	Low Dose Rate (LDR)
6	Isotope	B	Palladium 103 (Pd-103)
7	Qualifier	1	Unidirectional Source

Similar Procedure Codes

Questions About DW1YBB1

Is DW1YBB1 a billable code?

Yes. DW1YBB1 is a complete seven-character ICD-10-PCS code, specific enough to report Low Dose Rate (LDR) Brachytherapy of Lower Extremity using Palladium 103 (Pd-103), Unidirectional Source on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in DW1YBB1 mean?

DW1YBB1 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 Y is the TreatmentSite (Lower Extremity); the 5th character B is the ModalityQualifier (Low Dose Rate (LDR)); the 6th character B is the Isotope (Palladium 103 (Pd-103)); the 7th character 1 is the Qualifier (Unidirectional Source).