D918BB1Low Dose Rate (LDR) Brachytherapy of Hard Palate using Palladium 103 (Pd-103), Unidirectional Source

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

Billable / Specific Code

ICD-10-PCS D918BB1

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

D918BB1 is a billable ICD-10-PCS procedure code for Low Dose Rate (LDR) Brachytherapy of Hard Palate using Palladium 103 (Pd-103), Unidirectional Source. 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

ICD-10-PCS Code

D918BB1

Billable Status

Yes — Valid for Submission

Code Describes

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

Short Description

LDR Brachytherapy of Hard Palate using Pd-103, Unidirect

Parent Code

D91

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	8	Hard Palate
5	ModalityQualifier	B	Low Dose Rate (LDR)
6	Isotope	B	Palladium 103 (Pd-103)
7	Qualifier	1	Unidirectional Source

In the ICD-10-PCS Alphabetic Index

These FY 2026 ICD-10-PCS Alphabetic Index entries lead to D918BB1:

Brachytherapy, CivaSheet(R)

Entry for this code family

CivaSheet(R) Brachytherapy

Entry for this code family

Brachytherapy, Palate, Hard

Entry for this code family

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups D918BB1 into these clinical categories.

RAD002

Brachytherapy

Clinical domain: Radiation Therapy

Code History

Replaces previously assigned code(s):

D918BBZ — LDR Brachytherapy of Hard Palate using Pd-103

Similar Procedure Codes

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Questions About D918BB1

Is D918BB1 a billable code?

Yes. D918BB1 is a complete seven-character ICD-10-PCS code, specific enough to report Low Dose Rate (LDR) Brachytherapy of Hard Palate using Palladium 103 (Pd-103), Unidirectional Source on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in D918BB1 mean?

D918BB1 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 8 is the TreatmentSite (Hard Palate); 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).