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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group DDY4 includes procedures performed to deliver other radiation to tissue in the ileum. These ICD-10-PCS codes are used for inpatient documentation when therapeutic or palliative radiation is directed at the ileum as part of a radiation treatment course. Accurate coding within the ICD-10-PCS DDY4 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Ileum Other Radiation Procedure Overview

Procedures in this group involve delivery of radiation therapy to the ileum within the gastrointestinal system and are coded in the Radiation Therapy section of the International Classification of Diseases, Tenth Revision, Procedure Coding System. These procedures target the ileal tissue for therapeutic radiation and may be used for tumor control, palliation, or other clinical radiation indications. Accurate ICD-10-PCS coding of these procedures ensures inpatient records reflect the treated body part and operation, which supports correct case mix assignment and reimbursement.

Code Attributes

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

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

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Ileum 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
4	Body Part	Ileum

When to Use

Use a code from this group when a patient receives other radiation therapy specifically targeting the ileum as part of their inpatient treatment plan. Select the code that reflects the Radiation Therapy section, the operation Other Radiation, and the body part Ileum as documented in the operative or radiation record.

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
DDY47ZZ	Contact Radiation of Ileum
DDY48ZZ	Hyperthermia of Ileum
DDY4CZZ	Intraoperative Radiation Therapy (IORT) of Ileum
DDY4FZZ	Plaque Radiation of Ileum

Typical Clinical Scenarios

An elderly patient with known ileal adenocarcinoma is admitted for a planned inpatient radiation session as part of a multimodal treatment regimen. The radiation oncology team delivers a localized contact radiation application directly to the ileal lesion to achieve high-dose focal therapy while minimizing exposure to adjacent bowel. This targeted approach is used when the tumor is accessible for contact therapy and when precise surface dosing is required. Typical codes: DDY47ZZ
A middle-aged patient presents with symptomatic bleeding and painful tumor bulk in the terminal ileum causing obstruction symptoms; after multidisciplinary review, inpatient palliative therapy is initiated to rapidly reduce tumor-related symptoms. Hyperthermia is applied to the ileal tumor in combination with radiation to enhance radiosensitivity and palliate pain and bleeding when immediate symptom control is needed. The procedure is delivered in the inpatient setting due to the need for close monitoring and concurrent supportive care. Typical codes: DDY48ZZ
A patient undergoing abdominal surgery for recurrent ileal malignancy has residual microscopic disease identified intraoperatively; the surgical and radiation teams perform intraoperative radiation therapy directed to the ileal bed to sterilize margins before closure. This single-session intraoperative radiation is performed to reduce local recurrence risk when additional postoperative external beam radiation is contraindicated or impractical. The procedure is coded to reflect radiation delivered to the ileum during the operative encounter. Typical codes: DDY4CZZ

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

DDY2-DUODENUM-OTHER-RADIATION

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

DDY3-JEJUNUM-OTHER-RADIATION

ICD-10-PCS Code For Jejunum: 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
DDY47ZZ	Contact Radiation of Ileum
DDY48ZZ	Hyperthermia of Ileum
DDY4CZZ	Intraoperative Radiation Therapy (IORT) of Ileum
DDY4FZZ	Plaque Radiation of Ileum

Typical Clinical Scenarios

An elderly patient with known ileal adenocarcinoma is admitted for a planned inpatient radiation session as part of a multimodal treatment regimen. The radiation oncology team delivers a localized contact radiation application directly to the ileal lesion to achieve high-dose focal therapy while minimizing exposure to adjacent bowel. This targeted approach is used when the tumor is accessible for contact therapy and when precise surface dosing is required. Typical codes: DDY47ZZ
A middle-aged patient presents with symptomatic bleeding and painful tumor bulk in the terminal ileum causing obstruction symptoms; after multidisciplinary review, inpatient palliative therapy is initiated to rapidly reduce tumor-related symptoms. Hyperthermia is applied to the ileal tumor in combination with radiation to enhance radiosensitivity and palliate pain and bleeding when immediate symptom control is needed. The procedure is delivered in the inpatient setting due to the need for close monitoring and concurrent supportive care. Typical codes: DDY48ZZ
A patient undergoing abdominal surgery for recurrent ileal malignancy has residual microscopic disease identified intraoperatively; the surgical and radiation teams perform intraoperative radiation therapy directed to the ileal bed to sterilize margins before closure. This single-session intraoperative radiation is performed to reduce local recurrence risk when additional postoperative external beam radiation is contraindicated or impractical. The procedure is coded to reflect radiation delivered to the ileum during the operative encounter. Typical codes: DDY4CZZ

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

DDY2-DUODENUM-OTHER-RADIATION

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

DDY3-JEJUNUM-OTHER-RADIATION

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

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

Ileum Other Radiation Procedure Overview

Code Attributes

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

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

Ileum Other Radiation Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system does the DDY4 ileum group belong to?

What types of procedures are included in the DDY4 group for the ileum?

What are the specific ICD-10-PCS codes listed in this group?

How does accurate coding in the DDY4 group affect inpatient records and reimbursement?

Are there related DRGs associated with the DDY4 ileum procedure group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS section and body system does the DDY4 ileum group belong to?

What types of procedures are included in the DDY4 group for the ileum?

What are the specific ICD-10-PCS codes listed in this group?

How does accurate coding in the DDY4 group affect inpatient records and reimbursement?

Are there related DRGs associated with the DDY4 ileum procedure group?

References