D91Radiation Therapy, Ear, Nose, Mouth and Throat, Brachytherapy

Radiation Therapy›Ear, Nose, Mouth and Throat›Brachytherapy
  • Non-Billable Header
ICD-10-PCS D91
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

D91 is a non-billable ICD-10-PCS code that heads the group for Radiation Therapy, Ear, Nose, Mouth and Throat, Brachytherapy, so it cannot be submitted on a claim; a more specific seven-character code is required.

Code Identity

ICD-10-PCS Code
D91
Billable Status
No — Non-Billable Header
Code Describes
Radiation Therapy, Ear, Nose, Mouth and Throat, Brachytherapy
Short Description
Radiation Therapy, ENT & Mouth, Brachytherapy

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.

PositionDesignationValueMeaning
1SectionDRadiation Therapy
2Body System9Ear, Nose, Mouth and Throat
3Operation1Brachytherapy

Similar Procedure Codes

Questions About D91

Is D91 a billable code?

No. D91 is an incomplete heading for Radiation Therapy, Ear, Nose, Mouth and Throat, Brachytherapy and cannot be submitted on a claim. A complete seven-character code is required, such as D91097Z, D91098Z, and D91099Z.