DBY78ZZHyperthermia of Chest Wall

Radiation Therapy›Respiratory System›Other Radiation

Billable / Specific Code

ICD-10-PCS DBY78ZZ

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

DBY78ZZ is a billable ICD-10-PCS procedure code for Hyperthermia of Chest Wall. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026).

Code Identity

ICD-10-PCS Code

DBY78ZZ

Billable Status

Yes — Valid for Submission

Code Describes

Hyperthermia of Chest Wall

Parent Code

DBY

Short Description

Hyperthermia of Chest Wall

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	B	Respiratory System
3	Modality	Y	Other Radiation
4	TreatmentSite	7	Chest Wall
5	ModalityQualifier	8	Hyperthermia
6	Isotope	Z	None
7	Qualifier	Z	None

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for DBY78ZZ under the General Equivalence Mappings.

99.85

Approximate match.

Similar Procedure Codes

Questions About DBY78ZZ

Is DBY78ZZ a billable code?

Yes. DBY78ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Hyperthermia of Chest Wall on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in DBY78ZZ mean?

DBY78ZZ breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character B is the Body System (Respiratory System); the 3rd character Y is the Modality (Other Radiation); the 4th character 7 is the TreatmentSite (Chest Wall); the 5th character 8 is the ModalityQualifier (Hyperthermia); the 6th character Z is the Isotope (None); the 7th character Z is the Qualifier (None).

What is the ICD-9-PCS equivalent of DBY78ZZ?

Under the General Equivalence Mappings, Hyperthermia of Chest Wall crosswalks to ICD-9-PCS 99.85. The mapping is approximate, so confirm it fits the documentation.