D911BB1Low Dose Rate (LDR) Brachytherapy of Nose using Palladium 103 (Pd-103), Unidirectional Source

Radiation Therapy›Ear, Nose, Mouth and Throat›Brachytherapy

Billable / Specific Code

ICD-10-PCS D911BB1

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

D911BB1 is a billable ICD-10-PCS procedure code for Low Dose Rate (LDR) Brachytherapy of Nose 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

D911BB1

Billable Status

Yes — Valid for Submission

Code Describes

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

Parent Code

D91

Short Description

LDR Brachytherapy of Nose 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	9	Ear, Nose, Mouth and Throat
3	Modality	1	Brachytherapy
4	TreatmentSite	1	Nose
5	ModalityQualifier	B	Low Dose Rate (LDR)
6	Isotope	B	Palladium 103 (Pd-103)
7	Qualifier	1	Unidirectional Source

Code History

Replaces previously assigned code(s):

D911BBZ — Low Dose Rate (LDR) Brachytherapy of Nose using Pd-103

Similar Procedure Codes

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Questions About D911BB1

Is D911BB1 a billable code?

Yes. D911BB1 is a complete seven-character ICD-10-PCS code, specific enough to report Low Dose Rate (LDR) Brachytherapy of Nose using Palladium 103 (Pd-103), Unidirectional Source on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in D911BB1 mean?

D911BB1 breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character 9 is the Body System (Ear, Nose, Mouth and Throat); the 3rd character 1 is the Modality (Brachytherapy); the 4th character 1 is the TreatmentSite (Nose); 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).