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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group DDY5 includes procedures performed to deliver other radiation therapy to structures in the colon. These ICD-10-PCS codes are used for inpatient documentation when therapeutic radiation is administered to the colon for treatment of malignant or other disease processes. Accurate coding within the ICD-10-PCS DDY5 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Colon Other Radiation Procedure Overview

This procedure group includes other radiation therapies targeted to the colon and its mucosal or wall structures within the gastrointestinal system. Procedures in this group involve delivery of therapeutic radiation to treat neoplastic or other pathologic conditions of the colon. Accurate ICD-10-PCS coding of these radiation procedures ensures inpatient records reflect the specific treatment delivered and supports appropriate billing and case-mix assignment.

Code Attributes

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

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

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Colon 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
5	Body Part	Colon

When to Use

Use a code from this group when therapeutic radiation categorized as other radiation is delivered to the colon during an inpatient stay. Codes apply when the procedure is documented as radiation therapy to the colon for treatment of neoplastic or other qualifying conditions.

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
DDY57ZZ	Contact Radiation of Colon
DDY58ZZ	Hyperthermia of Colon
DDY5CZZ	Intraoperative Radiation Therapy (IORT) of Colon
DDY5FZZ	Plaque Radiation of Colon

Typical Clinical Scenarios

An elderly patient presents emergently with a bleeding, locally recurrent colon adenocarcinoma after prior external beam radiation and surgery. Due to prior treatments and tumor location involving the colonic wall and mucosa, contact radiation is delivered intra-lumenally at the bedside in the inpatient setting to control hemorrhage and provide local tumor control. This focused application uses a contact radiation technique targeting the colon surface. Typical codes: DDY57ZZ
A middle-aged patient with a newly diagnosed, localized but high-risk rectosigmoid junction colon cancer is admitted for a planned multimodal treatment. During the scheduled inpatient therapeutic session, intraoperative radiation is delivered directly to the colon tumor bed at the time of an open surgical procedure to maximize local dose while minimizing exposure to surrounding tissues. The procedure is an intraoperative radiation therapy application targeting the colon. Typical codes: DDY5CZZ
A patient with a poorly healing colonic tumor bed following resection and persistent microscopic residual disease is admitted for adjuvant local therapy; due to irregular mucosal involvement a plaque radiation device is placed against the serosal or mucosal surface in the inpatient setting to deliver sustained localized radiation. This plaque-type application is used when conformal surface dosing is preferred to treat residual disease inaccessible to external beam fields. Typical codes: DDY5FZZ

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

DDY4-ILEUM-OTHER-RADIATION

ICD-10-PCS Code For Ileum: 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
DDY57ZZ	Contact Radiation of Colon
DDY58ZZ	Hyperthermia of Colon
DDY5CZZ	Intraoperative Radiation Therapy (IORT) of Colon
DDY5FZZ	Plaque Radiation of Colon

Typical Clinical Scenarios

An elderly patient presents emergently with a bleeding, locally recurrent colon adenocarcinoma after prior external beam radiation and surgery. Due to prior treatments and tumor location involving the colonic wall and mucosa, contact radiation is delivered intra-lumenally at the bedside in the inpatient setting to control hemorrhage and provide local tumor control. This focused application uses a contact radiation technique targeting the colon surface. Typical codes: DDY57ZZ
A middle-aged patient with a newly diagnosed, localized but high-risk rectosigmoid junction colon cancer is admitted for a planned multimodal treatment. During the scheduled inpatient therapeutic session, intraoperative radiation is delivered directly to the colon tumor bed at the time of an open surgical procedure to maximize local dose while minimizing exposure to surrounding tissues. The procedure is an intraoperative radiation therapy application targeting the colon. Typical codes: DDY5CZZ
A patient with a poorly healing colonic tumor bed following resection and persistent microscopic residual disease is admitted for adjuvant local therapy; due to irregular mucosal involvement a plaque radiation device is placed against the serosal or mucosal surface in the inpatient setting to deliver sustained localized radiation. This plaque-type application is used when conformal surface dosing is preferred to treat residual disease inaccessible to external beam fields. Typical codes: DDY5FZZ

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

DDY4-ILEUM-OTHER-RADIATION

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

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

Colon Other Radiation Procedure Overview

Code Attributes

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

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

Colon Other Radiation Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system is specified for the DDY5 procedure group?

What operation is represented by ICD-10-PCS code group DDY5?

What specific ICD-10-PCS codes are included in the DDY5 group?

For what clinical purpose are procedures in the DDY5 group documented inpatient?

How does accurate coding of DDY5 procedures affect reimbursement?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which body system is specified for the DDY5 procedure group?

What operation is represented by ICD-10-PCS code group DDY5?

What specific ICD-10-PCS codes are included in the DDY5 group?

For what clinical purpose are procedures in the DDY5 group documented inpatient?

How does accurate coding of DDY5 procedures affect reimbursement?

References