ICD-10-PCS Code For Duodenum: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group DDY2 includes procedures performed to irradiate tissue in the duodenum. These ICD-10-PCS codes are used for inpatient documentation when therapeutic radiation is delivered to the duodenum for treatment or palliation of disease. Accurate coding within the ICD-10-PCS DDY2 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Duodenum Other Radiation Procedure Overview

This procedure group includes inpatient radiation therapy procedures directed at the duodenum, targeting the gastrointestinal system. These procedures involve delivery of therapeutic radiation to duodenal tissue for palliative or curative intent and are coded in the Radiation Therapy section of ICD-10-PCS. Accurate coding ensures the procedure is captured in the inpatient record and supports appropriate case mix group assignment and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
D	Body System	Gastrointestinal System
Y	Operation	Other Radiation
2	Body Part	Duodenum

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ICD-10-PCS Code For Duodenum: Procedure Code Group Overview

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Duodenum Other Radiation Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
D	Body System	Gastrointestinal System
Y	Operation	Other Radiation
2	Body Part	Duodenum

When to Use

Use a code from this group when therapeutic radiation is administered specifically to the duodenum during an inpatient encounter. These codes apply when the procedure is delivered as part of the Radiation Therapy section and the body part treated is the duodenum.

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
DDY27ZZ	Contact Radiation of Duodenum
DDY28ZZ	Hyperthermia of Duodenum
DDY2CZZ	Intraoperative Radiation Therapy (IORT) of Duodenum
DDY2FZZ	Plaque Radiation of Duodenum

Typical Clinical Scenarios

An elderly patient with locally advanced duodenal adenocarcinoma presents for planned inpatient delivery of intraoperative radiation therapy at the time of surgical resection to improve local control of tumor at the surgical bed. The multidisciplinary team performs IORT after tumor debulking because of close margins and concern for residual microscopic disease in the duodenum. A code reflecting intraoperative radiation to the duodenum is assigned. Typical codes: DDY2CZZ
A middle-aged patient with severe bleeding from a duodenal tumor is admitted emergently for palliative control of hemorrhage and pain when endoscopic and angiographic measures are unsuccessful. Contact radiation is applied to the duodenal lesion in the inpatient setting to achieve local tumor control and hemostasis. Coding should reflect contact radiation of the duodenum as the therapeutic modality delivered. Typical codes: DDY27ZZ
A patient with recurrent duodenal melanoma previously treated with external beam radiation returns with a localized, radioresistant lesion; plaque radiation is used in the inpatient setting to deliver a high localized dose directly to the duodenal mucosal lesion for palliation of obstructive symptoms. The procedure targets the duodenum specifically with plaque radiation applied to the area of recurrence. Typical codes: DDY2FZZ

Related Codes

DDY0-ESOPHAGUS-OTHER-RADIATION

ICD-10-PCS Code For Esophagus: Procedure Code Group Overview

DDY1-STOMACH-OTHER-RADIATION

ICD-10-PCS Code For Stomach: Procedure Code Group Overview

DDY3-JEJUNUM-OTHER-RADIATION

ICD-10-PCS Code For Jejunum: Procedure Code Group Overview

DDY4-ILEUM-OTHER-RADIATION

ICD-10-PCS Code For Ileum: Procedure Code Group Overview

DDY5-COLON-OTHER-RADIATION

ICD-10-PCS Code For Colon: Procedure Code Group Overview

DDY7-RECTUM-OTHER-RADIATION

ICD-10-PCS Code For Rectum: Procedure Code Group Overview

DDY8-ANUS-OTHER-RADIATION

ICD-10-PCS Code For Anus: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
DDY27ZZ	Contact Radiation of Duodenum
DDY28ZZ	Hyperthermia of Duodenum
DDY2CZZ	Intraoperative Radiation Therapy (IORT) of Duodenum
DDY2FZZ	Plaque Radiation of Duodenum

Typical Clinical Scenarios

An elderly patient with locally advanced duodenal adenocarcinoma presents for planned inpatient delivery of intraoperative radiation therapy at the time of surgical resection to improve local control of tumor at the surgical bed. The multidisciplinary team performs IORT after tumor debulking because of close margins and concern for residual microscopic disease in the duodenum. A code reflecting intraoperative radiation to the duodenum is assigned. Typical codes: DDY2CZZ
A middle-aged patient with severe bleeding from a duodenal tumor is admitted emergently for palliative control of hemorrhage and pain when endoscopic and angiographic measures are unsuccessful. Contact radiation is applied to the duodenal lesion in the inpatient setting to achieve local tumor control and hemostasis. Coding should reflect contact radiation of the duodenum as the therapeutic modality delivered. Typical codes: DDY27ZZ
A patient with recurrent duodenal melanoma previously treated with external beam radiation returns with a localized, radioresistant lesion; plaque radiation is used in the inpatient setting to deliver a high localized dose directly to the duodenal mucosal lesion for palliation of obstructive symptoms. The procedure targets the duodenum specifically with plaque radiation applied to the area of recurrence. Typical codes: DDY2FZZ

Related Codes

DDY0-ESOPHAGUS-OTHER-RADIATION

ICD-10-PCS Code For Esophagus: Procedure Code Group Overview

DDY1-STOMACH-OTHER-RADIATION

ICD-10-PCS Code For Stomach: Procedure Code Group Overview

DDY3-JEJUNUM-OTHER-RADIATION

ICD-10-PCS Code For Jejunum: Procedure Code Group Overview

DDY4-ILEUM-OTHER-RADIATION

ICD-10-PCS Code For Ileum: Procedure Code Group Overview

DDY5-COLON-OTHER-RADIATION

ICD-10-PCS Code For Colon: Procedure Code Group Overview

DDY7-RECTUM-OTHER-RADIATION

ICD-10-PCS Code For Rectum: Procedure Code Group Overview

DDY8-ANUS-OTHER-RADIATION

ICD-10-PCS Code For Anus: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Duodenum: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Duodenum: Procedure Code Group Overview policy alerts

Duodenum Other Radiation Procedure Overview

Code Attributes

ICD-10-PCS Code For Duodenum: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Duodenum: Procedure Code Group Overview policy alerts

Duodenum Other Radiation Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does the DDY2 code group represent?

What types of procedures are included in DDY2 for the duodenum?

For what clinical intents are DDY2 procedures performed?

How does accurate coding in DDY2 affect inpatient documentation and payment?

Are there related DRGs listed for the DDY2 code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does the DDY2 code group represent?

What types of procedures are included in DDY2 for the duodenum?

For what clinical intents are DDY2 procedures performed?

How does accurate coding in DDY2 affect inpatient documentation and payment?

Are there related DRGs listed for the DDY2 code group?

References