D9Y5FZZPlaque Radiation of Tongue

Q: What is the ICD-10-PCS code for plaque radiation of the tongue?

The FY 2027 ICD-10-PCS Alphabetic Index entry Plaque Radiation, Tongue is a direct entry for D9Y5FZZ, Plaque Radiation of Tongue, billable on inpatient claims from October 1, 2026 through September 30, 2027.

Radiation Therapy›Ear, Nose, Mouth and Throat›Other Radiation

Billable / Specific Code

ICD-10-PCS D9Y5FZZ

CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.

D9Y5FZZ is a billable ICD-10-PCS procedure code for Plaque Radiation of Tongue. 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 Radiation therapy, NEC.

Code Identity

ICD-10-PCS Code

D9Y5FZZ

Billable Status

Yes — Valid for Submission

Code Describes

Plaque Radiation of Tongue

Short Description

Plaque Radiation of Tongue

Same as the full description in the CMS dataset.

Parent Code

D9Y

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	Y	Other Radiation
4	TreatmentSite	5	Tongue
5	ModalityQualifier	F	Plaque Radiation
6	Isotope	Z	None
7	Qualifier	Z	None

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Plaque Radiation, Tongue

Direct entry for this code

Frenulum linguae

Anatomy or device term that leads here

To code plaque radiation of the tongue, open the FY 2027 ICD-10-PCS Alphabetic Index at Plaque Radiation, then the subterm Tongue. The entry lists D9Y5FZZ directly as a complete, billable code.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

RAD004

Radiation therapy, NEC

Clinical domain: Radiation Therapy

Convert to ICD-9-PCS

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

92.29

Other radiotherapeutic procedure

Approximate match.

Similar Procedure Codes

Questions About D9Y5FZZ

Is D9Y5FZZ a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Plaque Radiation of Tongue on inpatient claims from October 1, 2026 through September 30, 2027.

What is the ICD-10-PCS code for plaque radiation of the tongue?

The FY 2027 ICD-10-PCS Alphabetic Index entry Plaque Radiation, Tongue is a direct entry for D9Y5FZZ, Plaque Radiation of Tongue, billable on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in D9Y5FZZ 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 Y is the Modality (Other Radiation); the 4th character 5 is the TreatmentSite (Tongue); the 5th character F is the ModalityQualifier (Plaque Radiation); the 6th character Z is the Isotope (None); the 7th character Z is the Qualifier (None).

What is the ICD-9-PCS equivalent of D9Y5FZZ?

Under the General Equivalence Mappings, Plaque Radiation of Tongue crosswalks to ICD-9-PCS 92.29 (Other radiotherapeutic procedure). The mapping is approximate, so confirm it fits the documentation.