ICD-10-PCS Code For Gastrointestinal Tract: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CD27 includes procedures performed to image the gastrointestinal tract using tomographic nuclear medicine techniques after introduction of radioactive materials. These ICD-10-PCS codes are used for inpatient documentation when three-dimensional imaging of gastrointestinal structure or function is performed with radionuclide tracers. Accurate coding within the ICD-10-PCS CD27 group is essential for proper inpatient reimbursement, as it captures the specific imaging procedure performed and supports clinical documentation accuracy.

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Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

This procedure group includes tomographic nuclear medicine imaging studies that introduce radioactive materials into the gastrointestinal tract to produce three-dimensional images from captured emissions. These procedures target the gastrointestinal system to evaluate structure and function using radionuclide tracers and tomographic acquisition. Accurate ICD-10-PCS coding is important for inpatient reimbursement because it captures the specific imaging operation and anatomical focus, supporting correct case mix assignment and payment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
D	Body System	Gastrointestinal System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
7	Body Part	Gastrointestinal Tract

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ICD-10-PCS Code For Gastrointestinal Tract: Procedure Code Group Overview

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Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
D	Body System	Gastrointestinal System
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
7	Body Part	Gastrointestinal Tract

When to Use

Use a code from this group when radioactive materials are administered into the gastrointestinal tract specifically for tomographic nuclear medicine imaging to evaluate structure or function. Select these codes for inpatient records when the study involves radionuclide introduction and three-dimensional image capture of the gastrointestinal system.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
CD271ZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Technetium 99m (Tc-99m)
CD27DZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Indium 111 (In-111)
CD27YZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Other Radionuclide

Typical Clinical Scenarios

A hospitalized elderly patient with chronic iron deficiency anemia and intermittent melena undergoes inpatient evaluation after ongoing blood loss without clear source on endoscopy; the team suspects small bowel bleeding and arranges tomographic nuclear medicine imaging with a radionuclide tracer introduced into the gastrointestinal tract to localize occult bleeding for surgical planning. Typical codes: CD271ZZ, CD27YZZ
A middle-aged patient admitted from the emergency department with severe, unexplained abdominal pain and signs of obstructive symptoms after recent bariatric surgery; clinicians perform tomographic radionuclide imaging of the gastrointestinal tract to assess transit, detect leaks, or evaluate postsurgical functional complications. Typical codes: CD27DZZ, CD27YZZ
A pediatric patient with suspected Meckel diverticulum presenting with recurrent painless gastrointestinal bleeding is admitted for inpatient diagnostic workup; tomographic nuclear medicine study using a specific radionuclide tracer is performed to identify ectopic gastric mucosa and guide definitive operative management. Typical codes: CD271ZZ, CD27DZZ

ICD-10-PCS Code For Digestive System: 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
CD271ZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Technetium 99m (Tc-99m)
CD27DZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Indium 111 (In-111)
CD27YZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Gastrointestinal Tract using Other Radionuclide

Typical Clinical Scenarios

A hospitalized elderly patient with chronic iron deficiency anemia and intermittent melena undergoes inpatient evaluation after ongoing blood loss without clear source on endoscopy; the team suspects small bowel bleeding and arranges tomographic nuclear medicine imaging with a radionuclide tracer introduced into the gastrointestinal tract to localize occult bleeding for surgical planning. Typical codes: CD271ZZ, CD27YZZ
A middle-aged patient admitted from the emergency department with severe, unexplained abdominal pain and signs of obstructive symptoms after recent bariatric surgery; clinicians perform tomographic radionuclide imaging of the gastrointestinal tract to assess transit, detect leaks, or evaluate postsurgical functional complications. Typical codes: CD27DZZ, CD27YZZ
A pediatric patient with suspected Meckel diverticulum presenting with recurrent painless gastrointestinal bleeding is admitted for inpatient diagnostic workup; tomographic nuclear medicine study using a specific radionuclide tracer is performed to identify ectopic gastric mucosa and guide definitive operative management. Typical codes: CD271ZZ, CD27DZZ

ICD-10-PCS Code For Digestive System: 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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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 Gastrointestinal Tract: Procedure Code Group Overview

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Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

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Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-PCS Code For Gastrointestinal Tract: Procedure Code Group Overview

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

Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

ICD-10-PCS Code For Gastrointestinal Tract: Procedure Code Group Overview

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

Gastrointestinal Tract Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in ICD-10-PCS code group CD27?

Which body system and operation are represented by the CD27 code group?

What specific ICD-10-PCS codes are listed in the CD27 group?

Why is accurate coding within the CD27 group important for inpatient reimbursement?

What type of imaging acquisition and tracers are used in CD27 procedures?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in ICD-10-PCS code group CD27?

Which body system and operation are represented by the CD27 code group?

What specific ICD-10-PCS codes are listed in the CD27 group?

Why is accurate coding within the CD27 group important for inpatient reimbursement?

What type of imaging acquisition and tracers are used in CD27 procedures?

References