D9109CZHigh Dose Rate (HDR) Brachytherapy of Ear using Californium 252 (Cf-252)
- Billable / Specific Code
D9109CZ is a billable ICD-10-PCS procedure code for High Dose Rate (HDR) Brachytherapy of Ear using Californium 252 (Cf-252). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). 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 | 9 | Ear, Nose, Mouth and Throat |
| 3 | Modality | 1 | Brachytherapy |
| 4 | TreatmentSite | 0 | Ear |
| 5 | ModalityQualifier | 9 | High Dose Rate (HDR) |
| 6 | Isotope | C | Californium 252 (Cf-252) |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code brachytherapy of the ear, open the FY 2027 ICD-10-PCS Alphabetic Index at Brachytherapy, then the subterm Ear. The index leads to table D91, where the modality qualifier, isotope and qualifier values shown in the breakdown above complete the seven-character code D9109CZ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About D9109CZ
Is D9109CZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report High Dose Rate (HDR) Brachytherapy of Ear using Californium 252 (Cf-252) on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in D9109CZ mean?
The code 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 0 is the TreatmentSite (Ear); the 5th character 9 is the ModalityQualifier (High Dose Rate (HDR)); the 6th character C is the Isotope (Californium 252 (Cf-252)); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of D9109CZ?
Under the General Equivalence Mappings, High Dose Rate (HDR) Brachytherapy of Ear using Californium 252 (Cf-252) crosswalks to ICD-9-PCS 92.23 (Radioisotopic teleradiotherapy). The mapping is approximate, so confirm it fits the documentation.
