DWY28ZZHyperthermia of Chest

Radiation Therapy›Anatomical Regions›Other Radiation

Billable / Specific Code

ICD-10-PCS DWY28ZZ

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

DWY28ZZ is a billable ICD-10-PCS procedure code for Hyperthermia of Chest. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026).

Code Identity

ICD-10-PCS Code

DWY28ZZ

Billable Status

Yes — Valid for Submission

Code Describes

Hyperthermia of Chest

Parent Code

DWY

Short Description

Hyperthermia of Chest

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	W	Anatomical Regions
3	Modality	Y	Other Radiation
4	TreatmentSite	2	Chest
5	ModalityQualifier	8	Hyperthermia
6	Isotope	Z	None
7	Qualifier	Z	None

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for DWY28ZZ under the General Equivalence Mappings.

99.85

Approximate match.

Similar Procedure Codes

Questions About DWY28ZZ

Is DWY28ZZ a billable code?

Yes. DWY28ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Hyperthermia of Chest on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in DWY28ZZ mean?

DWY28ZZ breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character W is the Body System (Anatomical Regions); the 3rd character Y is the Modality (Other Radiation); the 4th character 2 is the TreatmentSite (Chest); 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 DWY28ZZ?

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