ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CW51 includes procedures performed to introduce radioactive materials or measure radioactive emissions in the abdomen and pelvis. These ICD-10-PCS codes are used for inpatient documentation when nonimaging nuclear medicine probe studies are performed to evaluate distribution or fate of substances in the abdominal and pelvic regions. Accurate coding within the ICD-10-PCS CW51 group is essential for proper inpatient reimbursement, as it captures the specific procedure performed and supports clinical documentation accuracy.

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Abdomen And Pelvis Nonimaging Nuclear Medicine Probe Procedure Overview

This procedure group includes introduction of radioactive materials into the abdomen and pelvis for nonimaging nuclear medicine probe studies and measurement of radioactive emissions from an external source. Procedures target the anatomical regions of the abdomen and pelvis and use nuclear medicine techniques rather than conventional imaging. Accurate ICD-10-PCS coding ensures inpatient records reflect the specific nuclear medicine probe procedure performed and supports appropriate case mix assignment and reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
5	Operation	Nonimaging Nuclear Medicine Probe
1	Body Part	Abdomen and Pelvis

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ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

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Abdomen And Pelvis Nonimaging Nuclear Medicine Probe Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
5	Operation	Nonimaging Nuclear Medicine Probe
1	Body Part	Abdomen and Pelvis

When to Use

Use a code from this group when a nonimaging nuclear medicine probe procedure is performed targeting the abdomen and pelvis to study radiotracer distribution or to measure emissions. These codes apply when radioactive material is introduced for diagnostic monitoring or when external detection of emissions is used to evaluate abdominal and pelvic function or pathology.

ICD-10-PCS Codes

3 rows

ICD-10-PCS Code	Description
CW511ZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Technetium 99m (Tc-99m)
CW51DZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Indium 111 (In-111)
CW51YZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Other Radionuclide

Typical Clinical Scenarios

A hospitalized elderly patient with acute upper gastrointestinal bleeding of unknown source and hemodynamic instability undergoes bedside evaluation to localize active bleeding when endoscopy is non-diagnostic or not feasible; a radiotracer is administered and a nonimaging nuclear medicine probe is used at the abdomen to detect focal radiotracer accumulation indicating ongoing hemorrhage. Typical codes: CW511ZZ, CW51YZZ
A middle-aged patient admitted electively for diagnostic evaluation of unexplained chronic abdominal pain and suspected inflammatory bowel disease undergoes planned nonimaging radionuclide testing to assess regional tracer distribution in the abdominal and pelvic organs to help differentiate inflammatory from functional processes. Typical codes: CW511ZZ, CW51DZZ
A postoperative patient on the surgical ward with new-onset fever and concern for pelvic abscess after hysterectomy receives a targeted nonimaging nuclear medicine probe study using an appropriate radionuclide to detect focal pelvic sepsis or abscess formation when cross-sectional imaging is inconclusive. Typical codes: CW51DZZ, CW51YZZ

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

CW53-CHEST-NONIMAGING-PROBE

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

CW54-CHEST-AND-ABDOMEN-NONIMAGING

ICD-10-PCS Code For Chest And Abdomen: Procedure Code Group Overview

CW56-CHEST-AND-NECK-NONIMAGING

ICD-10-PCS Code For Chest And Neck: Procedure Code Group Overview

CW5B-HEAD-AND-NECK-NONIMAGING

ICD-10-PCS Code For Head And Neck: Procedure Code Group Overview

CW5D-LOWER-EXTREMITY-NONIMAGING-PROBE

ICD-10-PCS Code For Lower Extremity: Procedure Code Group Overview

CW5J-PELVIC-REGION-NONIMAGING-NUCLEAR

ICD-10-PCS Code for Pelvic Region: Procedure Code Group Overview

CW5M-UPPER-EXTREMITY-NONIMAGING-PROBE

ICD-10-PCS Code For Upper Extremity: 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
CW511ZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Technetium 99m (Tc-99m)
CW51DZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Indium 111 (In-111)
CW51YZZ	Nonimaging Nuclear Medicine Probe of Abdomen and Pelvis using Other Radionuclide

Typical Clinical Scenarios

A hospitalized elderly patient with acute upper gastrointestinal bleeding of unknown source and hemodynamic instability undergoes bedside evaluation to localize active bleeding when endoscopy is non-diagnostic or not feasible; a radiotracer is administered and a nonimaging nuclear medicine probe is used at the abdomen to detect focal radiotracer accumulation indicating ongoing hemorrhage. Typical codes: CW511ZZ, CW51YZZ
A middle-aged patient admitted electively for diagnostic evaluation of unexplained chronic abdominal pain and suspected inflammatory bowel disease undergoes planned nonimaging radionuclide testing to assess regional tracer distribution in the abdominal and pelvic organs to help differentiate inflammatory from functional processes. Typical codes: CW511ZZ, CW51DZZ
A postoperative patient on the surgical ward with new-onset fever and concern for pelvic abscess after hysterectomy receives a targeted nonimaging nuclear medicine probe study using an appropriate radionuclide to detect focal pelvic sepsis or abscess formation when cross-sectional imaging is inconclusive. Typical codes: CW51DZZ, CW51YZZ

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

CW53-CHEST-NONIMAGING-PROBE

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

CW54-CHEST-AND-ABDOMEN-NONIMAGING

ICD-10-PCS Code For Chest And Abdomen: Procedure Code Group Overview

CW56-CHEST-AND-NECK-NONIMAGING

ICD-10-PCS Code For Chest And Neck: Procedure Code Group Overview

CW5B-HEAD-AND-NECK-NONIMAGING

ICD-10-PCS Code For Head And Neck: Procedure Code Group Overview

CW5D-LOWER-EXTREMITY-NONIMAGING-PROBE

ICD-10-PCS Code For Lower Extremity: Procedure Code Group Overview

CW5J-PELVIC-REGION-NONIMAGING-NUCLEAR

ICD-10-PCS Code for Pelvic Region: Procedure Code Group Overview

CW5M-UPPER-EXTREMITY-NONIMAGING-PROBE

ICD-10-PCS Code For Upper Extremity: 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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ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

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Abdomen And Pelvis Nonimaging Nuclear Medicine Probe Procedure Overview

Code Attributes

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ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

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Abdomen And Pelvis Nonimaging Nuclear Medicine Probe 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 Abdomen And Pelvis: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview policy alerts

Abdomen And Pelvis Nonimaging Nuclear Medicine Probe Procedure Overview

Code Attributes

ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Abdomen And Pelvis: Procedure Code Group Overview policy alerts

Abdomen And Pelvis Nonimaging Nuclear Medicine Probe Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS code group CW51?

What are the specific ICD-10-PCS codes in the CW51 group and their radionuclides?

Under which ICD-10-PCS section and body system is CW51 classified?

Why is accurate coding within the CW51 group important for inpatient documentation?

Does the CW51 group cover imaging studies using conventional imaging modalities?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What procedures are included in the ICD-10-PCS code group CW51?

What are the specific ICD-10-PCS codes in the CW51 group and their radionuclides?

Under which ICD-10-PCS section and body system is CW51 classified?

Why is accurate coding within the CW51 group important for inpatient documentation?

Does the CW51 group cover imaging studies using conventional imaging modalities?

References