ICD-10-PCS Code For Multiple Anatomical Regions: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group CW2Y includes procedures performed to image multiple anatomical regions using tomographic nuclear medicine techniques. These ICD-10-PCS codes are used for inpatient documentation when three-dimensional radionuclide imaging is performed to evaluate physiological function or pathology across more than one anatomical region. Accurate coding within the ICD-10-PCS CW2Y group is essential for proper inpatient reimbursement, as it captures the specific imaging operation and anatomical scope performed.

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Multiple Anatomical Regions Tomographic Nuclear Medicine Imaging Procedure Overview

Procedures in this group involve tomographic nuclear medicine imaging that captures three-dimensional displays of radioactive emissions from multiple anatomical regions. These studies target anatomical regions across the body to localize physiological function or pathology using radionuclide tracers. Accurate ICD-10-PCS coding of these tomographic nuclear medicine procedures is important for inpatient reimbursement because it documents the specific imaging technique and anatomical scope used to support appropriate case mix classification.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
Y	Body Part	Anatomical Regions, Multiple

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ICD-10-PCS Code For Multiple Anatomical Regions: Procedure Code Group Overview

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Multiple Anatomical Regions Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
C	Section	Nuclear Medicine
W	Body System	Anatomical Regions
2	Operation	Tomographic (Tomo) Nuclear Medicine Imaging
Y	Body Part	Anatomical Regions, Multiple

When to Use

Use a code from this group when inpatient tomographic nuclear medicine imaging is performed that includes more than one anatomical region and uses radionuclide tracers for three-dimensional image reconstruction. These codes apply when the clinical objective is to localize or assess physiological function or pathology across multiple anatomical regions during the same imaging session.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
CW2YYZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Multiple Anatomical Regions using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted for evaluation of progressive, unexplained cognitive decline and intermittent focal neurologic deficits. The clinical team orders three-dimensional radionuclide imaging encompassing the brain and contiguous head/neck regions to assess for multisite perfusion abnormalities and to correlate functional deficits across more than one anatomical region. Tomographic nuclear medicine imaging of multiple anatomical regions is performed to localize abnormal tracer uptake patterns that may explain the acute decline and guide further inpatient management. Typical codes: CW2YYZZ
A patient with known metastatic cancer is admitted for staging and assessment of treatment response after recent systemic therapy. To evaluate disease distribution and physiological activity across several anatomical regions (for example chest, abdomen, and pelvis) in one imaging session, three-dimensional radionuclide imaging is obtained to detect multifocal tracer-avid lesions and determine extent of involvement. This comprehensive tomographic nuclear medicine study of multiple anatomical regions informs inpatient oncologic management decisions. Typical codes: CW2YYZZ
A hospitalized patient with prior complex surgery and persistent unexplained infection signs has recurrent, multifocal inflammatory activity suspected in separate anatomical regions. Clinicians perform tomographic radionuclide imaging across multiple anatomical regions to identify sites of occult infection or inflammatory foci that were not localized by prior planar studies. The three-dimensional nuclear medicine scan helps direct targeted interventions during the current admission. Typical codes: CW2YYZZ

Related Codes

CW20-ABDOMEN-TOMOGRAPHIC-IMAGING

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

CW21-ABDOMEN-AND-PELVIS-TOMOGRAPHIC

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

CW23-CHEST-TOMOGRAPHIC-NUCLEAR-MEDICINE

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

CW24-CHEST-AND-ABDOMEN-TOMOGRAPHIC

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

CW26-CHEST-NECK-TOMOGRAPHIC

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

CW2B-HEAD-AND-NECK-TOMOGRAPHIC

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

CW2D-LOWER-EXTREMITY-TOMOGRAPHIC-IMAGING

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

CW2J-PELVIC-REGION-TOMOGRAPHIC-IMAGING

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

CW2M-UPPER-EXTREMITY-TOMOGRAPHIC-IMAGING

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

1 rows

ICD-10-PCS Code	Description
CW2YYZZ	Tomographic (Tomo) Nuclear Medicine Imaging of Multiple Anatomical Regions using Other Radionuclide

Typical Clinical Scenarios

An elderly patient is admitted for evaluation of progressive, unexplained cognitive decline and intermittent focal neurologic deficits. The clinical team orders three-dimensional radionuclide imaging encompassing the brain and contiguous head/neck regions to assess for multisite perfusion abnormalities and to correlate functional deficits across more than one anatomical region. Tomographic nuclear medicine imaging of multiple anatomical regions is performed to localize abnormal tracer uptake patterns that may explain the acute decline and guide further inpatient management. Typical codes: CW2YYZZ
A patient with known metastatic cancer is admitted for staging and assessment of treatment response after recent systemic therapy. To evaluate disease distribution and physiological activity across several anatomical regions (for example chest, abdomen, and pelvis) in one imaging session, three-dimensional radionuclide imaging is obtained to detect multifocal tracer-avid lesions and determine extent of involvement. This comprehensive tomographic nuclear medicine study of multiple anatomical regions informs inpatient oncologic management decisions. Typical codes: CW2YYZZ
A hospitalized patient with prior complex surgery and persistent unexplained infection signs has recurrent, multifocal inflammatory activity suspected in separate anatomical regions. Clinicians perform tomographic radionuclide imaging across multiple anatomical regions to identify sites of occult infection or inflammatory foci that were not localized by prior planar studies. The three-dimensional nuclear medicine scan helps direct targeted interventions during the current admission. Typical codes: CW2YYZZ

Related Codes

CW20-ABDOMEN-TOMOGRAPHIC-IMAGING

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

CW21-ABDOMEN-AND-PELVIS-TOMOGRAPHIC

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

CW23-CHEST-TOMOGRAPHIC-NUCLEAR-MEDICINE

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

CW24-CHEST-AND-ABDOMEN-TOMOGRAPHIC

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

CW26-CHEST-NECK-TOMOGRAPHIC

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

CW2B-HEAD-AND-NECK-TOMOGRAPHIC

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

CW2D-LOWER-EXTREMITY-TOMOGRAPHIC-IMAGING

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

CW2J-PELVIC-REGION-TOMOGRAPHIC-IMAGING

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

CW2M-UPPER-EXTREMITY-TOMOGRAPHIC-IMAGING

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.

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 Multiple Anatomical Regions: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Multiple Anatomical Regions: Procedure Code Group Overview policy alerts

Multiple Anatomical Regions Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

ICD-10-PCS Code For Multiple Anatomical Regions: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Multiple Anatomical Regions: Procedure Code Group Overview policy alerts

Multiple Anatomical Regions Tomographic Nuclear Medicine Imaging Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the CW2Y ICD-10-PCS code group?

What is the operation and body system described by CW2Y codes?

When should CW2Y codes be used for inpatient documentation?

What is the specific ICD-10-PCS code listed for multiple anatomical regions using other radionuclide?

Are there related DRGs available for CW2Y procedures?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the CW2Y ICD-10-PCS code group?

What is the operation and body system described by CW2Y codes?

When should CW2Y codes be used for inpatient documentation?

What is the specific ICD-10-PCS code listed for multiple anatomical regions using other radionuclide?

Are there related DRGs available for CW2Y procedures?

References