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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group DD21 includes procedures performed to deliver targeted radiation to treat lesions in the stomach. These ICD-10-PCS codes are used for inpatient documentation when stereotactic radiosurgery is performed on stomach lesions or tumors as part of radiation therapy. Accurate coding within the ICD-10-PCS DD21 group is essential for proper inpatient reimbursement, as it captures the specialized radiation therapy performed and supports clinical documentation accuracy.

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Stomach Stereotactic Radiosurgery Procedure Overview

Procedures in this group involve delivering highly focused radiation to treat lesions or tumors of the stomach within the gastrointestinal system. Stereotactic radiosurgery precisely targets a stomach lesion while minimizing exposure to surrounding tissues, and accurate coding ensures the inpatient record reflects the specialized radiation therapy performed. Correct ICD-10-PCS assignment supports appropriate case mix designation and reimbursement for radiation therapy services.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
D	Body System	Gastrointestinal System
2	Operation	Stereotactic Radiosurgery
1	Body Part	Stomach

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

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Stomach Stereotactic Radiosurgery Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
D	Section	Radiation Therapy
D	Body System	Gastrointestinal System
2	Operation	Stereotactic Radiosurgery
1	Body Part	Stomach

When to Use

Use a code from this group when stereotactic radiosurgery is performed on a stomach lesion or tumor during an inpatient stay. Select the specific ICD-10-PCS code that matches the stereotactic radiation technique and stomach as the targeted body part.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
DD21DZZ	Stereotactic Other Photon Radiosurgery of Stomach
DD21HZZ	Stereotactic Particulate Radiosurgery of Stomach
DD21JZZ	Stereotactic Gamma Beam Radiosurgery of Stomach

DRG Codes

12 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
823	Lymphoma and Non-Acute Leukemia with Other Procedures with MCC
824	Lymphoma and Non-Acute Leukemia with Other Procedures with CC
825	Lymphoma and Non-Acute Leukemia with Other Procedures without CC/MCC
829	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An elderly patient with a solitary, biopsy-proven gastric neuroendocrine tumor not amenable to endoscopic resection is admitted for planned inpatient stereotactic radiosurgery because of proximity to critical structures and the need for tightly focused dose delivery over one or a few high-dose fractions to maximize local control. The patient is medically complex with cardiac comorbidities requiring inpatient monitoring during the procedure session and post-procedure observation for acute toxicity. Typical codes: DD21DZZ, DD21JZZ
A middle-aged patient with recurrent gastric adenocarcinoma following prior subtotal gastrectomy presents for a scheduled stereotactic radiosurgery boost to a focal stomach wall recurrence identified on imaging; the team opts for a particulate or photon stereotactic technique to deliver a conformal high-dose boost while minimizing dose to the surgical bed and adjacent bowel. The patient is admitted for coordination of immobilization, image guidance, and delivery of the stereotactic radiosurgery and short inpatient recovery. Typical codes: DD21HZZ, DD21DZZ
A patient presents urgently with bleeding from a small, well-localized gastric tumor where prior therapies failed and immediate local control is needed; after stabilization, stereotactic radiosurgery is performed during the inpatient stay to ablate the lesion and control hemorrhage when endoscopic or surgical options are high risk. Due to the acute setting and focused high-dose delivery, a gamma beam or other stereotactic modality targeting the stomach lesion is selected with inpatient monitoring for post-treatment complications. Typical codes: DD21JZZ, DD21DZZ

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

DD22-DUODENUM-STEREOTACTIC-RADIOSURGERY

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

DD23-JEJUNUM-STEREOTACTIC-RADIOSURGERY

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

DD24-ILEUM-REVISION-ILEUM-STEREOTACTIC-RADIOSURGERY

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

DD25-COLON-STEREOTACTIC-RADIOSURGERY

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

DD27-RECTUM-STEREOTACTIC-RADIOSURGERY

ICD-10-PCS Code For Rectum: 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

3 rows

ICD-10-PCS Code	Description
DD21DZZ	Stereotactic Other Photon Radiosurgery of Stomach
DD21HZZ	Stereotactic Particulate Radiosurgery of Stomach
DD21JZZ	Stereotactic Gamma Beam Radiosurgery of Stomach

DRG Codes

12 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
823	Lymphoma and Non-Acute Leukemia with Other Procedures with MCC
824	Lymphoma and Non-Acute Leukemia with Other Procedures with CC
825	Lymphoma and Non-Acute Leukemia with Other Procedures without CC/MCC
829	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An elderly patient with a solitary, biopsy-proven gastric neuroendocrine tumor not amenable to endoscopic resection is admitted for planned inpatient stereotactic radiosurgery because of proximity to critical structures and the need for tightly focused dose delivery over one or a few high-dose fractions to maximize local control. The patient is medically complex with cardiac comorbidities requiring inpatient monitoring during the procedure session and post-procedure observation for acute toxicity. Typical codes: DD21DZZ, DD21JZZ
A middle-aged patient with recurrent gastric adenocarcinoma following prior subtotal gastrectomy presents for a scheduled stereotactic radiosurgery boost to a focal stomach wall recurrence identified on imaging; the team opts for a particulate or photon stereotactic technique to deliver a conformal high-dose boost while minimizing dose to the surgical bed and adjacent bowel. The patient is admitted for coordination of immobilization, image guidance, and delivery of the stereotactic radiosurgery and short inpatient recovery. Typical codes: DD21HZZ, DD21DZZ
A patient presents urgently with bleeding from a small, well-localized gastric tumor where prior therapies failed and immediate local control is needed; after stabilization, stereotactic radiosurgery is performed during the inpatient stay to ablate the lesion and control hemorrhage when endoscopic or surgical options are high risk. Due to the acute setting and focused high-dose delivery, a gamma beam or other stereotactic modality targeting the stomach lesion is selected with inpatient monitoring for post-treatment complications. Typical codes: DD21JZZ, DD21DZZ

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

DD22-DUODENUM-STEREOTACTIC-RADIOSURGERY

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

DD23-JEJUNUM-STEREOTACTIC-RADIOSURGERY

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

DD24-ILEUM-REVISION-ILEUM-STEREOTACTIC-RADIOSURGERY

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

DD25-COLON-STEREOTACTIC-RADIOSURGERY

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

DD27-RECTUM-STEREOTACTIC-RADIOSURGERY

ICD-10-PCS Code For Rectum: 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.

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

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Stomach Stereotactic Radiosurgery Procedure Overview

Code Attributes

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

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Stomach Stereotactic Radiosurgery Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

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

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

Stomach Stereotactic Radiosurgery Procedure Overview

Code Attributes

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

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

Stomach Stereotactic Radiosurgery Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS DD21 code group?

What is the ICD-10-PCS section and body system for DD21 codes?

When should DD21 codes be used in inpatient documentation?

How does accurate coding of DD21 procedures affect reimbursement?

Which DRGs are related to procedures in the DD21 code group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS DD21 code group?

What is the ICD-10-PCS section and body system for DD21 codes?

When should DD21 codes be used in inpatient documentation?

How does accurate coding of DD21 procedures affect reimbursement?

Which DRGs are related to procedures in the DD21 code group?

References