D01797ZHigh Dose Rate (HDR) Brachytherapy of Peripheral Nerve using Cesium 137 (Cs-137)

Radiation Therapy›Central and Peripheral Nervous System›Brachytherapy

Billable / Specific Code

ICD-10-PCS D01797Z

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

D01797Z is a billable ICD-10-PCS procedure code for High Dose Rate (HDR) Brachytherapy of Peripheral Nerve using Cesium 137 (Cs-137). It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026).

Code Identity

ICD-10-PCS Code

D01797Z

Billable Status

Yes — Valid for Submission

Code Describes

High Dose Rate (HDR) Brachytherapy of Peripheral Nerve using Cesium 137 (Cs-137)

Parent Code

D01

Short Description

HDR Brachytherapy of Peripheral Nerve using Cesium 137

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	0	Central and Peripheral Nervous System
3	Modality	1	Brachytherapy
4	TreatmentSite	7	Peripheral Nerve
5	ModalityQualifier	9	High Dose Rate (HDR)
6	Isotope	7	Cesium 137 (Cs-137)
7	Qualifier	Z	None

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for D01797Z under the General Equivalence Mappings.

92.23

Approximate match.

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Questions About D01797Z

Is D01797Z a billable code?

Yes. D01797Z is a complete seven-character ICD-10-PCS code, specific enough to report High Dose Rate (HDR) Brachytherapy of Peripheral Nerve using Cesium 137 (Cs-137) on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in D01797Z mean?

D01797Z breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character 0 is the Body System (Central and Peripheral Nervous System); the 3rd character 1 is the Modality (Brachytherapy); the 4th character 7 is the TreatmentSite (Peripheral Nerve); the 5th character 9 is the ModalityQualifier (High Dose Rate (HDR)); the 6th character 7 is the Isotope (Cesium 137 (Cs-137)); the 7th character Z is the Qualifier (None).

What is the ICD-9-PCS equivalent of D01797Z?

Under the General Equivalence Mappings, High Dose Rate (HDR) Brachytherapy of Peripheral Nerve using Cesium 137 (Cs-137) crosswalks to ICD-9-PCS 92.23. The mapping is approximate, so confirm it fits the documentation.